fix: update ntfy tests for SSE API (reconnect_delay)

fix: add explicit check command to pre-push hook

.gitignore

@@ -1,4 +1,11 @@
 __pycache__/
 *.pyc
 .mainline_venv/
+.venv/
+uv.lock
 .mainline_cache_*.json
+.DS_Store
+htmlcov/
+.coverage
+.pytest_cache/
+*.egg-info/

.python-version

@@ -0,0 +1 @@
+3.12

Mainline Renderer + ntfy Message Queue for ESP32.md

@@ -3,29 +3,29 @@
 mainline\.py does heavy work unsuitable for ESP32: 25\+ HTTPS/TLS RSS feeds, OTF font rasterization via Pillow, Google Translate API calls, and complex text layout\. Simultaneously, messages arriving on `ntfy.sh/klubhaus_terminal_mainline` need to interrupt the news ticker on the same device\.
 ## Architecture: Server \+ Thin Client
 Split the system into two halves that are designed together\.
-**Server \(mainline\.py `--serve` mode, runs on any always\-on machine\)**
+**Server (mainline\.py `--serve` mode, runs on any always\-on machine)**
 * Reuses existing feed fetching, caching, content filtering, translation, and Pillow font rendering pipeline — no duplication\.
-* Pre\-renders each headline into a 1\-bit bitmap strip \(the OTF→half\-block pipeline already produces this as an intermediate step in `_render_line()`\)\.
+* Pre\-renders each headline into a 1\-bit bitmap strip (the OTF→half\-block pipeline already produces this as an intermediate step in `_render_line()`)\.
 * Exposes a lightweight HTTP API the ESP32 polls\.
-**ESP32 thin client \(Arduino sketch\)**
+**ESP32 thin client (Arduino sketch)**
-* Polls the mainline server for pre\-rendered headline bitmaps over plain HTTP \(no TLS needed if on the same LAN\)\.
+* Polls the mainline server for pre\-rendered headline bitmaps over plain HTTP (no TLS needed if on the same LAN)\.
-* Polls `ntfy.sh/klubhaus_terminal_mainline` directly for messages, reusing the proven `NetManager::httpGet()` \+ JSON parsing pattern from DoorbellLogic \(`DoorbellLogic.cpp:155-192`\)\.
+* Polls `ntfy.sh/klubhaus_terminal_mainline` directly for messages, reusing the proven `NetManager::httpGet()` \+ JSON parsing pattern from DoorbellLogic (`DoorbellLogic.cpp:155-192`)\.
-* Manages scrolling, gradient coloring, and glitch effects locally \(cheap per\-frame GPU work\)\.
+* Manages scrolling, gradient coloring, and glitch effects locally (cheap per\-frame GPU work)\.
 * When an ntfy message arrives, the scroll is paused and the message takes over the display — same interrupt pattern as the doorbell's ALERT→DASHBOARD flow\.
-## Server API \(mainline repo\)
+## Server API (mainline repo)
-New file: `serve.py` \(or `--serve` mode in mainline\.py\)\.
+New file: `serve.py` (or `--serve` mode in mainline\.py)\.
 Endpoints:
 * `GET /api/headlines` — returns JSON array of headline metadata: `[{"id": 0, "src": "Nature", "ts": "14:30", "width": 280, "height": 16, "bitmap": "<base64 1-bit packed>"}]`\. Bitmaps are 1\-bit\-per\-pixel, row\-major, packed 8px/byte\. The ESP32 applies gradient color locally\.
 * `GET /api/config` — returns `{"count": 120, "version": "...", "mode": "news"}` so the ESP32 knows what it's getting\.
 * `GET /api/health` — `{"ok": true, "last_fetch": "...", "headline_count": 120}`
-The server renders at a configurable target width \(e\.g\. 800px for Board 3, 320px for Boards 1/2\) via a `--width` flag or query parameter\. Height is fixed per headline by the font size\.
+The server renders at a configurable target width (e\.g\. 800px for Board 3, 320px for Boards 1/2) via a `--width` flag or query parameter\. Height is fixed per headline by the font size\.
-The server refreshes feeds on a timer \(reusing `_SCROLL_DUR` cadence or a longer interval\), re\-renders, and serves the latest set\. The ESP32 polls `/api/headlines` periodically \(e\.g\. every 60s\) and swaps in the new set\.
+The server refreshes feeds on a timer (reusing `_SCROLL_DUR` cadence or a longer interval), re\-renders, and serves the latest set\. The ESP32 polls `/api/headlines` periodically (e\.g\. every 60s) and swaps in the new set\.
-## Render pipeline \(server side\)
+## Render pipeline (server side)
 The existing `_render_line()` in mainline\.py already does:
 1. `ImageFont.truetype()` → `ImageDraw.text()` → grayscale `Image`
 2. Resize to target height
-3. Threshold to 1\-bit \(the `thr = 80` step\)
+3. Threshold to 1\-bit (the `thr = 80` step)
-For the server, we stop at step 3 and pack the 1\-bit data into bytes instead of converting to half\-block Unicode\. This is the exact same pipeline, just with a different output format\. The `_big_wrap()` and `_lr_gradient()` logic stays on the server for layout; gradient *coloring* moves to the ESP32 \(it's just an index lookup per pixel column\)\.
+For the server, we stop at step 3 and pack the 1\-bit data into bytes instead of converting to half\-block Unicode\. This is the exact same pipeline, just with a different output format\. The `_big_wrap()` and `_lr_gradient()` logic stays on the server for layout; gradient *coloring* moves to the ESP32 (it's just an index lookup per pixel column)\.
 ## ESP32 client
 ### State machine
 ```warp-runnable-command
@@ -35,19 +35,19 @@ BOOT → SCROLL ⇄ MESSAGE
 * **BOOT** — WiFi connect, initial headline fetch from server\.
 * **SCROLL** — Vertical scroll through pre\-rendered headlines with local gradient \+ glitch\. Polls server for new headlines periodically\. Polls ntfy every 15s\.
 * **MESSAGE** — ntfy message arrived\. Scroll paused, message displayed\. Auto\-dismiss after timeout or touch\-dismiss\. Returns to SCROLL\.
-* **OFF** — Backlight off after inactivity \(polling continues in background\)\.
+* **OFF** — Backlight off after inactivity (polling continues in background)\.
 ### ntfy integration
 The ESP32 polls `https://ntfy.sh/klubhaus_terminal_mainline/json?since=20s&poll=1` on the same 15s interval as the doorbell polls its topics\. When a message event arrives:
 1. Parse JSON: `{"event": "message", "title": "...", "message": "..."}`
 2. Save current scroll position\.
 3. Transition to MESSAGE state\.
-4. Render message text using the display library's built\-in fonts \(messages are short, no custom font needed\)\.
+4. Render message text using the display library's built\-in fonts (messages are short, no custom font needed)\.
-5. After `MESSAGE_TIMEOUT_MS` \(e\.g\. 30s\) or touch, restore scroll position and resume\.
+5. After `MESSAGE_TIMEOUT_MS` (e\.g\. 30s) or touch, restore scroll position and resume\.
-This is architecturally identical to `DoorbellLogic::onAlert()` → `dismissAlert()`, just with different content\. The ntfy polling runs independently of the server connection, so messages work even if the mainline server is offline \(the device just shows the last cached headlines\)\.
+This is architecturally identical to `DoorbellLogic::onAlert()` → `dismissAlert()`, just with different content\. The ntfy polling runs independently of the server connection, so messages work even if the mainline server is offline (the device just shows the last cached headlines)\.
 ### Headline storage
-* Board 3 \(8 MB PSRAM\): store all ~120 headline bitmaps in PSRAM\. At 800px × 16px × 1 bit = 1\.6 KB each → ~192 KB total\. Trivial\.
+* Board 3 (8 MB PSRAM): store all ~120 headline bitmaps in PSRAM\. At 800px × 16px × 1 bit = 1\.6 KB each → ~192 KB total\. Trivial\.
-* Boards 1/2 \(PSRAM TBD\): at 320px × 16px = 640 bytes each → ~77 KB for 120 headlines\. Fits if PSRAM is present\. Without PSRAM, keep ~20 headlines in a ring buffer \(~13 KB\)\.
+* Boards 1/2 (PSRAM TBD): at 320px × 16px = 640 bytes each → ~77 KB for 120 headlines\. Fits if PSRAM is present\. Without PSRAM, keep ~20 headlines in a ring buffer (~13 KB)\.
-### Gradient coloring \(local\)
+### Gradient coloring (local)
 The 12\-step ANSI gradient in mainline\.py maps to 12 RGB565 values:
 ```warp-runnable-command
 const uint16_t GRADIENT[] = {
@@ -68,8 +68,8 @@ mainline.py          (existing, unchanged)
 serve.py             (new — HTTP server, imports mainline rendering functions)
 klubhaus-doorbell-hardware.md  (existing)
 ```
-`serve.py` imports the rendering functions from mainline\.py \(after refactoring them into importable form — they're currently top\-level but not wrapped in `if __name__`\)\.
+`serve.py` imports the rendering functions from mainline\.py (after refactoring them into importable form — they're currently top\-level but not wrapped in `if __name__`)\.
-### klubhaus\-doorbell repo \(or mainline repo under firmware/\)
+### klubhaus\-doorbell repo (or mainline repo under firmware/)
 ```warp-runnable-command
 boards/esp32-mainline/
 ├── esp32-mainline.ino    Main sketch
@@ -79,31 +79,31 @@ boards/esp32-mainline/
 ├── HeadlineStore.h/.cpp  Bitmap ring buffer in PSRAM
 └── NtfyPoller.h/.cpp     ntfy.sh polling (extracted from DoorbellLogic pattern)
 ```
-The display driver is reused from the target board \(e\.g\. `DisplayDriverGFX` for Board 3\)\. `MainlineLogic` replaces `DoorbellLogic` as the state machine but follows the same patterns\.
+The display driver is reused from the target board (e\.g\. `DisplayDriverGFX` for Board 3)\. `MainlineLogic` replaces `DoorbellLogic` as the state machine but follows the same patterns\.
 ## Branch strategy recommendation
 The work spans two repos and has clear dependency ordering\.
-### Phase 1 — Finish current branch \(mainline repo\)
+### Phase 1 — Finish current branch (mainline repo)
-**Branch:** `feat/arduino` \(current\)
+**Branch:** `feat/arduino` (current)
 **Content:** Hardware spec doc\. Already done\.
 **Action:** Merge to main when ready\.
-### Phase 2 — Server renderer \(mainline repo\)
+### Phase 2 — Server renderer (mainline repo)
-**Branch:** `feat/renderer` \(branch from main after Phase 1 merges\)
+**Branch:** `feat/renderer` (branch from main after Phase 1 merges)
 **Content:**
-* Refactor mainline\.py rendering functions to be importable \(extract from `__main__` guard\)
+* Refactor mainline\.py rendering functions to be importable (extract from `__main__` guard)
 * `serve.py` — HTTP server with `/api/headlines`, `/api/config`, `/api/health`
-* Bitmap packing utility \(1\-bit row\-major\)
+* Bitmap packing utility (1\-bit row\-major)
-**Why a separate branch:** This changes mainline\.py's structure \(refactoring for imports\) and adds a new entry point\. It's a self\-contained, testable unit — you can verify the API with `curl` before touching any Arduino code\.
+**Why a separate branch:** This changes mainline\.py's structure (refactoring for imports) and adds a new entry point\. It's a self\-contained, testable unit — you can verify the API with `curl` before touching any Arduino code\.
-### Phase 3 — ESP32 client \(klubhaus\-doorbell repo, or mainline repo\)
+### Phase 3 — ESP32 client (klubhaus\-doorbell repo, or mainline repo)
 **Branch:** `feat/mainline-client` in whichever repo hosts it
 **Content:**
 * `MainlineLogic` state machine
 * `HeadlineStore` bitmap buffer
 * `NtfyPoller` for `klubhaus_terminal_mainline`
 * Board\-specific sketch for the target board
-**Depends on:** Phase 2 \(needs a running server to test against\)
+**Depends on:** Phase 2 (needs a running server to test against)
 **Repo decision:** If you have push access to klubhaus\-doorbell, it fits naturally as a new board target alongside the existing doorbell sketches — it reuses `NetManager`, `IDisplayDriver`, and the vendored display libraries\. If not, put it under `mainline/firmware/` and vendor the shared KlubhausCore library\.
 ### Merge order
-1. `feat/arduino` → main \(hardware spec\)
+1. `feat/arduino` → main (hardware spec)
-2. `feat/renderer` → main \(server\)
+2. `feat/renderer` → main (server)
-3. `feat/mainline-client` → main in whichever repo \(ESP32 client\)
+3. `feat/mainline-client` → main in whichever repo (ESP32 client)
 Each phase is independently testable and doesn't block the other until Phase 3 needs a running server\.

README.md

@@ -14,6 +14,10 @@ python3 mainline.py --poetry             # literary consciousness mode
 python3 mainline.py -p                   # same
 python3 mainline.py --firehose           # dense rapid-fire headline mode
 python3 mainline.py --refresh            # force re-fetch (bypass cache)
+python3 mainline.py --no-font-picker     # skip interactive font picker
+python3 mainline.py --font-file path.otf # use a specific font file
+python3 mainline.py --font-dir ~/fonts   # scan a different font folder
+python3 mainline.py --font-index 1       # select face index within a collection
 ```
 
 First run bootstraps a local `.mainline_venv/` and installs deps (`feedparser`, `Pillow`, `sounddevice`, `numpy`). Subsequent runs start immediately, loading from cache.
@@ -29,7 +33,10 @@ All constants live in `engine/config.py`:
 | `HEADLINE_LIMIT` | `1000` | Total headlines per session |
 | `FEED_TIMEOUT` | `10` | Per-feed HTTP timeout (seconds) |
 | `MIC_THRESHOLD_DB` | `50` | dB floor above which glitches spike |
-| `FONT_PATH` | hardcoded path | Path to your OTF/TTF display font |
+| `FONT_DIR` | `fonts/` | Folder scanned for `.otf`, `.ttf`, `.ttc` files |
+| `FONT_PATH` | first file in `FONT_DIR` | Active display font (overridden by picker or `--font-file`) |
+| `FONT_INDEX` | `0` | Face index within a font collection file |
+| `FONT_PICKER` | `True` | Show interactive font picker at boot (`--no-font-picker` to skip) |
 | `FONT_SZ` | `60` | Font render size (affects block density) |
 | `RENDER_H` | `8` | Terminal rows per headline line |
 | `SSAA` | `4` | Super-sampling factor (render at 4× then downsample) |
@@ -41,15 +48,24 @@ All constants live in `engine/config.py`:
 | `NTFY_POLL_INTERVAL` | `15` | Seconds between ntfy polls |
 | `MESSAGE_DISPLAY_SECS` | `30` | How long an ntfy message holds the screen |
 
-**Font:** `FONT_PATH` is hardcoded to a local path. Update it to point to whatever display font you want — anything with strong contrast and wide letterforms works well.
+---
+
+## Fonts
+
+A `fonts/` directory is bundled with demo faces (AlphatronDemo, CSBishopDrawn, CyberformDemo, KATA, Microbots, Neoform, Pixel Sparta, Robocops, Xeonic, and others). On startup, an interactive picker lists all discovered faces with a live half-block preview rendered at your configured size.
+
+Navigation: `↑`/`↓` or `j`/`k` to move, `Enter` or `q` to select. The selected face persists for that session.
+
+To add your own fonts, drop `.otf`, `.ttf`, or `.ttc` files into `fonts/` (or point `--font-dir` at any other folder). Font collections (`.ttc`, multi-face `.otf`) are enumerated face-by-face.
 
 ---
 
 ## How it works
 
+- On launch, the font picker scans `fonts/` and presents a live-rendered TUI for face selection; `--no-font-picker` skips directly to stream
 - Feeds are fetched and filtered on startup (sports and vapid content stripped); results are cached to `.mainline_cache_news.json` / `.mainline_cache_poetry.json` for fast restarts
 - Headlines are rasterized via Pillow with 4× SSAA into half-block characters (`▀▄█ `) at the configured font size
-- A left-to-right ANSI gradient colors each character: white-hot leading edge trails off to near-black; the gradient sweeps continuously across the full scroll canvas
+- The ticker uses a sweeping white-hot → deep green gradient; ntfy messages use a complementary white-hot → magenta/maroon gradient to distinguish them visually
 - Subject-region detection runs a regex pass on each headline; matches trigger a Google Translate call and font swap to the appropriate script (CJK, Arabic, Devanagari, etc.) using macOS system fonts
 - The mic stream runs in a background thread, feeding RMS dB into the glitch probability calculation each frame
 - The viewport scrolls through a virtual canvas of pre-rendered blocks; fade zones at top and bottom dissolve characters probabilistically
@@ -74,7 +90,7 @@ engine/
   ntfy.py         NtfyPoller — standalone, zero internal deps
   mic.py          MicMonitor — standalone, graceful fallback
   scroll.py       stream() frame loop + message rendering
-  app.py          main(), boot sequence, signal handler
+  app.py          main(), font picker TUI, boot sequence, signal handler
 ```
 
 `ntfy.py` and `mic.py` have zero internal dependencies and can be imported by any other visualizer.
@@ -138,4 +154,5 @@ msg = poller.get_active_message()  # returns (title, body, timestamp) or None
 
 ---
 
-*macOS only (system font paths hardcoded). Python 3.9+.*
+*macOS only (script/system font paths for translation are hardcoded). Primary display font is user-selectable via the bundled `fonts/` picker. Python 3.9+.*
+# test

engine/app.py

@@ -2,20 +2,33 @@
 Application orchestrator — boot sequence, signal handling, main loop wiring.
 """
 
-import sys
-import time
-import signal
 import atexit
+import os
+import signal
+import sys
+import termios
+import time
+import tty
 
-from engine import config
+from engine import config, render
-from engine.terminal import (
-    RST, G_HI, G_MID, G_DIM, W_DIM, W_GHOST, CLR, CURSOR_OFF, CURSOR_ON, tw,
-    slow_print, boot_ln,
-)
 from engine.fetch import fetch_all, fetch_poetry, load_cache, save_cache
-from engine.ntfy import NtfyPoller
 from engine.mic import MicMonitor
+from engine.ntfy import NtfyPoller
 from engine.scroll import stream
+from engine.terminal import (
+    CLR,
+    CURSOR_OFF,
+    CURSOR_ON,
+    G_DIM,
+    G_HI,
+    G_MID,
+    RST,
+    W_DIM,
+    W_GHOST,
+    boot_ln,
+    slow_print,
+    tw,
+)
 
 TITLE = [
     "  ███╗   ███╗ █████╗ ██╗███╗   ██╗██╗     ██╗███╗   ██╗███████╗",
@@ -27,6 +40,215 @@ TITLE = [
 ]
 
 
+def _read_picker_key():
+    ch = sys.stdin.read(1)
+    if ch == "\x03":
+        return "interrupt"
+    if ch in ("\r", "\n"):
+        return "enter"
+    if ch == "\x1b":
+        c1 = sys.stdin.read(1)
+        if c1 != "[":
+            return None
+        c2 = sys.stdin.read(1)
+        if c2 == "A":
+            return "up"
+        if c2 == "B":
+            return "down"
+        return None
+    if ch in ("k", "K"):
+        return "up"
+    if ch in ("j", "J"):
+        return "down"
+    if ch in ("q", "Q"):
+        return "enter"
+    return None
+
+
+def _normalize_preview_rows(rows):
+    """Trim shared left padding and trailing spaces for stable on-screen previews."""
+    non_empty = [r for r in rows if r.strip()]
+    if not non_empty:
+        return [""]
+    left_pad = min(len(r) - len(r.lstrip(" ")) for r in non_empty)
+    out = []
+    for row in rows:
+        if left_pad < len(row):
+            out.append(row[left_pad:].rstrip())
+        else:
+            out.append(row.rstrip())
+    return out
+
+
+def _draw_font_picker(faces, selected):
+    w = tw()
+    h = 24
+    try:
+        h = os.get_terminal_size().lines
+    except Exception:
+        pass
+
+    max_preview_w = max(24, w - 8)
+    header_h = 6
+    footer_h = 3
+    preview_h = max(4, min(config.RENDER_H + 2, max(4, h // 2)))
+    visible = max(1, h - header_h - preview_h - footer_h)
+    top = max(0, selected - (visible // 2))
+    bottom = min(len(faces), top + visible)
+    top = max(0, bottom - visible)
+
+    print(CLR, end="")
+    print(CURSOR_OFF, end="")
+    print()
+    print(f"  {G_HI}FONT PICKER{RST}")
+    print(f"  {W_GHOST}{'─' * (w - 4)}{RST}")
+    print(f"  {W_DIM}{config.FONT_DIR[:max_preview_w]}{RST}")
+    print(f"  {W_GHOST}↑/↓ move · Enter select · q accept current{RST}")
+    print()
+
+    for pos in range(top, bottom):
+        face = faces[pos]
+        active = pos == selected
+        pointer = "▶" if active else " "
+        color = G_HI if active else W_DIM
+        print(
+            f"  {color}{pointer} {face['name']}{RST}{W_GHOST} · {face['file_name']}{RST}"
+        )
+
+    if top > 0:
+        print(f"  {W_GHOST}… {top} above{RST}")
+    if bottom < len(faces):
+        print(f"  {W_GHOST}… {len(faces) - bottom} below{RST}")
+
+    print()
+    print(f"  {W_GHOST}{'─' * (w - 4)}{RST}")
+    print(
+        f"  {W_DIM}Preview: {faces[selected]['name']} · {faces[selected]['file_name']}{RST}"
+    )
+    preview_rows = faces[selected]["preview_rows"][:preview_h]
+    for row in preview_rows:
+        shown = row[:max_preview_w]
+        print(f"    {shown}")
+
+
+def pick_font_face():
+    """Interactive startup picker for selecting a face from repo OTF files."""
+    if not config.FONT_PICKER:
+        return
+
+    font_files = config.list_repo_font_files()
+    if not font_files:
+        print(CLR, end="")
+        print(CURSOR_OFF, end="")
+        print()
+        print(f"  {G_HI}FONT PICKER{RST}")
+        print(f"  {W_GHOST}{'─' * (tw() - 4)}{RST}")
+        print(f"  {G_DIM}> no .otf/.ttf/.ttc files found in: {config.FONT_DIR}{RST}")
+        print(f"  {W_GHOST}> add font files to the fonts folder, then rerun{RST}")
+        time.sleep(1.8)
+        sys.exit(1)
+
+    prepared = []
+    for font_path in font_files:
+        try:
+            faces = render.list_font_faces(font_path, max_faces=64)
+        except Exception:
+            fallback = os.path.splitext(os.path.basename(font_path))[0]
+            faces = [{"index": 0, "name": fallback}]
+        for face in faces:
+            idx = face["index"]
+            name = face["name"]
+            file_name = os.path.basename(font_path)
+            try:
+                fnt = render.load_font_face(font_path, idx)
+                rows = _normalize_preview_rows(render.render_line(name, fnt))
+            except Exception:
+                rows = ["(preview unavailable)"]
+            prepared.append(
+                {
+                    "font_path": font_path,
+                    "font_index": idx,
+                    "name": name,
+                    "file_name": file_name,
+                    "preview_rows": rows,
+                }
+            )
+
+    if not prepared:
+        print(CLR, end="")
+        print(CURSOR_OFF, end="")
+        print()
+        print(f"  {G_HI}FONT PICKER{RST}")
+        print(f"  {W_GHOST}{'─' * (tw() - 4)}{RST}")
+        print(f"  {G_DIM}> no readable font faces found in: {config.FONT_DIR}{RST}")
+        time.sleep(1.8)
+        sys.exit(1)
+
+    def _same_path(a, b):
+        try:
+            return os.path.samefile(a, b)
+        except Exception:
+            return os.path.abspath(a) == os.path.abspath(b)
+
+    selected = next(
+        (
+            i
+            for i, f in enumerate(prepared)
+            if _same_path(f["font_path"], config.FONT_PATH)
+            and f["font_index"] == config.FONT_INDEX
+        ),
+        0,
+    )
+
+    if not sys.stdin.isatty():
+        selected_font = prepared[selected]
+        config.set_font_selection(
+            font_path=selected_font["font_path"],
+            font_index=selected_font["font_index"],
+        )
+        render.clear_font_cache()
+        print(
+            f"  {G_DIM}> using {selected_font['name']} ({selected_font['file_name']}){RST}"
+        )
+        time.sleep(0.8)
+        print(CLR, end="")
+        print(CURSOR_OFF, end="")
+        print()
+        return
+
+    fd = sys.stdin.fileno()
+    old_settings = termios.tcgetattr(fd)
+    try:
+        tty.setcbreak(fd)
+        while True:
+            _draw_font_picker(prepared, selected)
+            key = _read_picker_key()
+            if key == "up":
+                selected = max(0, selected - 1)
+            elif key == "down":
+                selected = min(len(prepared) - 1, selected + 1)
+            elif key == "enter":
+                break
+            elif key == "interrupt":
+                raise KeyboardInterrupt
+    finally:
+        termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
+
+    selected_font = prepared[selected]
+    config.set_font_selection(
+        font_path=selected_font["font_path"],
+        font_index=selected_font["font_index"],
+    )
+    render.clear_font_cache()
+    print(
+        f"  {G_DIM}> using {selected_font['name']} ({selected_font['file_name']}){RST}"
+    )
+    time.sleep(0.8)
+    print(CLR, end="")
+    print(CURSOR_OFF, end="")
+    print()
+
+
 def main():
     atexit.register(lambda: print(CURSOR_ON, end="", flush=True))
 
@@ -40,6 +262,8 @@ def main():
     w = tw()
     print(CLR, end="")
     print(CURSOR_OFF, end="")
+    pick_font_face()
+    w = tw()
     print()
     time.sleep(0.4)
 
@@ -48,23 +272,29 @@ def main():
         time.sleep(0.07)
 
     print()
-    _subtitle = "literary consciousness stream" if config.MODE == 'poetry' else "digital consciousness stream"
+    _subtitle = (
+        "literary consciousness stream"
+        if config.MODE == "poetry"
+        else "digital consciousness stream"
+    )
     print(f"  {W_DIM}v0.1 · {_subtitle}{RST}")
     print(f"  {W_GHOST}{'─' * (w - 4)}{RST}")
     print()
     time.sleep(0.4)
 
-    cached = load_cache() if '--refresh' not in sys.argv else None
+    cached = load_cache() if "--refresh" not in sys.argv else None
     if cached:
         items = cached
         boot_ln("Cache", f"LOADED [{len(items)} SIGNALS]", True)
-    elif config.MODE == 'poetry':
+    elif config.MODE == "poetry":
         slow_print("  > INITIALIZING LITERARY CORPUS...\n")
         time.sleep(0.2)
         print()
         items, linked, failed = fetch_poetry()
         print()
-        print(f"  {G_DIM}>{RST} {G_MID}{linked} TEXTS LOADED{RST} {W_GHOST}· {failed} DARK{RST}")
+        print(
+            f"  {G_DIM}>{RST} {G_MID}{linked} TEXTS LOADED{RST} {W_GHOST}· {failed} DARK{RST}"
+        )
         print(f"  {G_DIM}>{RST} {G_MID}{len(items)} STANZAS ACQUIRED{RST}")
         save_cache(items)
     else:
@@ -73,7 +303,9 @@ def main():
         print()
         items, linked, failed = fetch_all()
         print()
-        print(f"  {G_DIM}>{RST} {G_MID}{linked} SOURCES LINKED{RST} {W_GHOST}· {failed} DARK{RST}")
+        print(
+            f"  {G_DIM}>{RST} {G_MID}{linked} SOURCES LINKED{RST} {W_GHOST}· {failed} DARK{RST}"
+        )
         print(f"  {G_DIM}>{RST} {G_MID}{len(items)} SIGNALS ACQUIRED{RST}")
         save_cache(items)
 
@@ -85,11 +317,17 @@ def main():
     mic = MicMonitor(threshold_db=config.MIC_THRESHOLD_DB)
     mic_ok = mic.start()
     if mic.available:
-        boot_ln("Microphone", "ACTIVE" if mic_ok else "OFFLINE · check System Settings → Privacy → Microphone", bool(mic_ok))
+        boot_ln(
+            "Microphone",
+            "ACTIVE"
+            if mic_ok
+            else "OFFLINE · check System Settings → Privacy → Microphone",
+            bool(mic_ok),
+        )
 
     ntfy = NtfyPoller(
         config.NTFY_TOPIC,
-        poll_interval=config.NTFY_POLL_INTERVAL,
+        reconnect_delay=config.NTFY_RECONNECT_DELAY,
         display_secs=config.MESSAGE_DISPLAY_SECS,
     )
     ntfy_ok = ntfy.start()

engine/config.py

@@ -3,21 +3,79 @@ Configuration constants, CLI flags, and glyph tables.
 """
 
 import sys
+from pathlib import Path
+
+_REPO_ROOT = Path(__file__).resolve().parent.parent
+_FONT_EXTENSIONS = {".otf", ".ttf", ".ttc"}
+
+
+def _arg_value(flag):
+    """Get value following a CLI flag, if present."""
+    if flag not in sys.argv:
+        return None
+    i = sys.argv.index(flag)
+    return sys.argv[i + 1] if i + 1 < len(sys.argv) else None
+
+
+def _arg_int(flag, default):
+    """Get int CLI argument with safe fallback."""
+    raw = _arg_value(flag)
+    if raw is None:
+        return default
+    try:
+        return int(raw)
+    except ValueError:
+        return default
+
+
+def _resolve_font_path(raw_path):
+    """Resolve font path; relative paths are anchored to repo root."""
+    p = Path(raw_path).expanduser()
+    if p.is_absolute():
+        return str(p)
+    return str((_REPO_ROOT / p).resolve())
+
+
+def _list_font_files(font_dir):
+    """List supported font files within a font directory."""
+    font_root = Path(font_dir)
+    if not font_root.exists() or not font_root.is_dir():
+        return []
+    return [
+        str(path.resolve())
+        for path in sorted(font_root.iterdir())
+        if path.is_file() and path.suffix.lower() in _FONT_EXTENSIONS
+    ]
+
+
+def list_repo_font_files():
+    """Public helper for discovering repository font files."""
+    return _list_font_files(FONT_DIR)
+
 
 # ─── RUNTIME ──────────────────────────────────────────────
 HEADLINE_LIMIT = 1000
 FEED_TIMEOUT = 10
 MIC_THRESHOLD_DB = 50  # dB above which glitches intensify
-MODE = 'poetry' if '--poetry' in sys.argv or '-p' in sys.argv else 'news'
+MODE = "poetry" if "--poetry" in sys.argv or "-p" in sys.argv else "news"
-FIREHOSE = '--firehose' in sys.argv
+FIREHOSE = "--firehose" in sys.argv
 
 # ─── NTFY MESSAGE QUEUE ──────────────────────────────────
-NTFY_TOPIC = "https://ntfy.sh/klubhaus_terminal_mainline/json?since=20s&poll=1"
+NTFY_TOPIC = "https://ntfy.sh/klubhaus_terminal_mainline/json"
-NTFY_POLL_INTERVAL = 15   # seconds between polls
+NTFY_RECONNECT_DELAY = 5  # seconds before reconnecting after a dropped stream
 MESSAGE_DISPLAY_SECS = 30  # how long a message holds the screen
 
 # ─── FONT RENDERING ──────────────────────────────────────
-FONT_PATH = "/Users/genejohnson/Documents/CS Bishop Drawn/CSBishopDrawn-Italic.otf"
+FONT_DIR = _resolve_font_path(_arg_value("--font-dir") or "fonts")
+_FONT_FILE_ARG = _arg_value("--font-file")
+_FONT_FILES = _list_font_files(FONT_DIR)
+FONT_PATH = (
+    _resolve_font_path(_FONT_FILE_ARG)
+    if _FONT_FILE_ARG
+    else (_FONT_FILES[0] if _FONT_FILES else "")
+)
+FONT_INDEX = max(0, _arg_int("--font-index", 0))
+FONT_PICKER = "--no-font-picker" not in sys.argv
 FONT_SZ = 60
 RENDER_H = 8  # terminal rows per rendered text line
 
@@ -33,3 +91,12 @@ GRAD_SPEED = 0.08         # gradient traversal speed (cycles/sec, ~12s full swee
 # ─── GLYPHS ───────────────────────────────────────────────
 GLITCH = "░▒▓█▌▐╌╍╎╏┃┆┇┊┋"
 KATA = "ﾊﾐﾋｰｳｼﾅﾓﾆｻﾜﾂｵﾘｱﾎﾃﾏｹﾒｴｶｷﾑﾕﾗｾﾈｽﾀﾇﾍ"
+
+
+def set_font_selection(font_path=None, font_index=None):
+    """Set runtime primary font selection."""
+    global FONT_PATH, FONT_INDEX
+    if font_path is not None:
+        FONT_PATH = _resolve_font_path(font_path)
+    if font_index is not None:
+        FONT_INDEX = max(0, int(font_index))

engine/effects.py

@@ -7,8 +7,8 @@ import random
 from datetime import datetime
 
 from engine import config
-from engine.terminal import RST, DIM, G_LO, G_DIM, W_GHOST, C_DIM
 from engine.sources import FEEDS, POETRY_SOURCES
+from engine.terminal import C_DIM, DIM, G_DIM, G_LO, RST, W_GHOST
 
 
 def noise(w):
@@ -34,23 +34,23 @@ def fade_line(s, fade):
     if fade >= 1.0:
         return s
     if fade <= 0.0:
-        return ''
+        return ""
     result = []
     i = 0
     while i < len(s):
-        if s[i] == '\033' and i + 1 < len(s) and s[i + 1] == '[':
+        if s[i] == "\033" and i + 1 < len(s) and s[i + 1] == "[":
             j = i + 2
             while j < len(s) and not s[j].isalpha():
                 j += 1
-            result.append(s[i:j + 1])
+            result.append(s[i : j + 1])
             i = j + 1
-        elif s[i] == ' ':
+        elif s[i] == " ":
-            result.append(' ')
+            result.append(" ")
             i += 1
         else:
-            result.append(s[i] if random.random() < fade else ' ')
+            result.append(s[i] if random.random() < fade else " ")
             i += 1
-    return ''.join(result)
+    return "".join(result)
 
 
 def vis_trunc(s, w):
@@ -61,17 +61,17 @@ def vis_trunc(s, w):
     while i < len(s):
         if vw >= w:
             break
-        if s[i] == '\033' and i + 1 < len(s) and s[i + 1] == '[':
+        if s[i] == "\033" and i + 1 < len(s) and s[i + 1] == "[":
             j = i + 2
             while j < len(s) and not s[j].isalpha():
                 j += 1
-            result.append(s[i:j + 1])
+            result.append(s[i : j + 1])
             i = j + 1
         else:
             result.append(s[i])
             vw += 1
             i += 1
-    return ''.join(result)
+    return "".join(result)
 
 
 def next_headline(pool, items, seen):
@@ -94,7 +94,7 @@ def firehose_line(items, w):
     if r < 0.35:
         # Raw headline text
         title, src, ts = random.choice(items)
-        text = title[:w - 1]
+        text = title[: w - 1]
         color = random.choice([G_LO, G_DIM, W_GHOST, C_DIM])
         return f"{color}{text}{RST}"
     elif r < 0.55:
@@ -103,12 +103,13 @@ def firehose_line(items, w):
         return "".join(
             f"{random.choice([G_LO, G_DIM, C_DIM, W_GHOST])}"
             f"{random.choice(config.GLITCH + config.KATA)}{RST}"
-            if random.random() < d else " "
+            if random.random() < d
+            else " "
             for _ in range(w)
         )
     elif r < 0.78:
         # Status / program output
-        sources = FEEDS if config.MODE == 'news' else POETRY_SOURCES
+        sources = FEEDS if config.MODE == "news" else POETRY_SOURCES
         src = random.choice(list(sources.keys()))
         msgs = [
             f"  SIGNAL :: {src} :: {datetime.now().strftime('%H:%M:%S.%f')[:-3]}",
@@ -118,16 +119,16 @@ def firehose_line(items, w):
             f"  {''.join(random.choice(config.KATA) for _ in range(3))} STRM "
             f"{random.randint(0, 255):02X}:{random.randint(0, 255):02X}",
         ]
-        text = random.choice(msgs)[:w - 1]
+        text = random.choice(msgs)[: w - 1]
         color = random.choice([G_LO, G_DIM, W_GHOST])
         return f"{color}{text}{RST}"
     else:
         # Headline fragment with glitch prefix
         title, _, _ = random.choice(items)
         start = random.randint(0, max(0, len(title) - 20))
-        frag = title[start:start + random.randint(10, 35)]
+        frag = title[start : start + random.randint(10, 35)]
         pad = random.randint(0, max(0, w - len(frag) - 8))
-        gp = ''.join(random.choice(config.GLITCH) for _ in range(random.randint(1, 3)))
+        gp = "".join(random.choice(config.GLITCH) for _ in range(random.randint(1, 3)))
-        text = (' ' * pad + gp + ' ' + frag)[:w - 1]
+        text = (" " * pad + gp + " " + frag)[: w - 1]
         color = random.choice([G_LO, C_DIM, W_GHOST])
         return f"{color}{text}{RST}"

engine/fetch.py

@@ -3,19 +3,20 @@ RSS feed fetching, Project Gutenberg parsing, and headline caching.
 Depends on: config, sources, filter, terminal.
 """
 
-import re
 import json
 import pathlib
+import re
 import urllib.request
 from datetime import datetime
 
 import feedparser
 
 from engine import config
+from engine.filter import skip, strip_tags
 from engine.sources import FEEDS, POETRY_SOURCES
-from engine.filter import strip_tags, skip
 from engine.terminal import boot_ln
 
+
 # ─── SINGLE FEED ──────────────────────────────────────────
 def fetch_feed(url):
     try:
@@ -63,26 +64,31 @@ def _fetch_gutenberg(url, label):
     try:
         req = urllib.request.Request(url, headers={"User-Agent": "mainline/0.1"})
         resp = urllib.request.urlopen(req, timeout=15)
-        text = resp.read().decode('utf-8', errors='replace').replace('\r\n', '\n').replace('\r', '\n')
+        text = (
+            resp.read()
+            .decode("utf-8", errors="replace")
+            .replace("\r\n", "\n")
+            .replace("\r", "\n")
+        )
         # Strip PG boilerplate
-        m = re.search(r'\*\*\*\s*START OF[^\n]*\n', text)
+        m = re.search(r"\*\*\*\s*START OF[^\n]*\n", text)
         if m:
-            text = text[m.end():]
+            text = text[m.end() :]
-        m = re.search(r'\*\*\*\s*END OF', text)
+        m = re.search(r"\*\*\*\s*END OF", text)
         if m:
-            text = text[:m.start()]
+            text = text[: m.start()]
         # Split on blank lines into stanzas/passages
-        blocks = re.split(r'\n{2,}', text.strip())
+        blocks = re.split(r"\n{2,}", text.strip())
         items = []
         for blk in blocks:
-            blk = ' '.join(blk.split())   # flatten to one line
+            blk = " ".join(blk.split())  # flatten to one line
             if len(blk) < 20 or len(blk) > 280:
                 continue
             if blk.isupper():  # skip all-caps headers
                 continue
-            if re.match(r'^[IVXLCDM]+\.?\s*$', blk):  # roman numerals
+            if re.match(r"^[IVXLCDM]+\.?\s*$", blk):  # roman numerals
                 continue
-            items.append((blk, label, ''))
+            items.append((blk, label, ""))
         return items
     except Exception:
         return []

engine/filter.py

@@ -29,29 +29,29 @@ def strip_tags(html):
 
 # ─── CONTENT FILTER ───────────────────────────────────────
 _SKIP_RE = re.compile(
-    r'\b(?:'
+    r"\b(?:"
     # ── sports ──
-    r'football|soccer|basketball|baseball|softball|tennis|golf|cricket|rugby|'
+    r"football|soccer|basketball|baseball|softball|tennis|golf|cricket|rugby|"
-    r'hockey|lacrosse|volleyball|badminton|'
+    r"hockey|lacrosse|volleyball|badminton|"
-    r'nba|nfl|nhl|mlb|mls|fifa|uefa|'
+    r"nba|nfl|nhl|mlb|mls|fifa|uefa|"
-    r'premier league|champions league|la liga|serie a|bundesliga|'
+    r"premier league|champions league|la liga|serie a|bundesliga|"
-    r'world cup|super bowl|world series|stanley cup|'
+    r"world cup|super bowl|world series|stanley cup|"
-    r'playoff|playoffs|touchdown|goalkeeper|striker|quarterback|'
+    r"playoff|playoffs|touchdown|goalkeeper|striker|quarterback|"
-    r'slam dunk|home run|grand slam|offside|halftime|'
+    r"slam dunk|home run|grand slam|offside|halftime|"
-    r'batting|wicket|innings|'
+    r"batting|wicket|innings|"
-    r'formula 1|nascar|motogp|'
+    r"formula 1|nascar|motogp|"
-    r'boxing|ufc|mma|'
+    r"boxing|ufc|mma|"
-    r'marathon|tour de france|'
+    r"marathon|tour de france|"
-    r'transfer window|draft pick|relegation|'
+    r"transfer window|draft pick|relegation|"
     # ── vapid / insipid ──
-    r'kardashian|jenner|reality tv|reality show|'
+    r"kardashian|jenner|reality tv|reality show|"
-    r'influencer|viral video|tiktok|instagram|'
+    r"influencer|viral video|tiktok|instagram|"
-    r'best dressed|worst dressed|red carpet|'
+    r"best dressed|worst dressed|red carpet|"
-    r'horoscope|zodiac|gossip|bikini|selfie|'
+    r"horoscope|zodiac|gossip|bikini|selfie|"
-    r'you won.t believe|what happened next|'
+    r"you won.t believe|what happened next|"
-    r'celebrity couple|celebrity feud|baby bump'
+    r"celebrity couple|celebrity feud|baby bump"
-    r')\b',
+    r")\b",
-    re.IGNORECASE
+    re.IGNORECASE,
 )
 
 

engine/mic.py

@@ -6,8 +6,9 @@ Gracefully degrades if sounddevice/numpy are unavailable.
 import atexit
 
 try:
-    import sounddevice as _sd
     import numpy as _np
+    import sounddevice as _sd
+
     _HAS_MIC = True
 except Exception:
     _HAS_MIC = False
@@ -40,12 +41,15 @@ class MicMonitor:
         """Start background mic stream. Returns True on success, False/None otherwise."""
         if not _HAS_MIC:
             return None
+
         def _cb(indata, frames, t, status):
-            rms = float(_np.sqrt(_np.mean(indata ** 2)))
+            rms = float(_np.sqrt(_np.mean(indata**2)))
             self._db = 20 * _np.log10(rms) if rms > 0 else -99.0
+
         try:
             self._stream = _sd.InputStream(
-                callback=_cb, channels=1, samplerate=44100, blocksize=2048)
+                callback=_cb, channels=1, samplerate=44100, blocksize=2048
+            )
             self._stream.start()
             atexit.register(self.stop)
             return True

engine/ntfy.py

@@ -1,9 +1,9 @@
 """
-ntfy.sh message poller — standalone, zero internal dependencies.
+ntfy.sh SSE stream listener — standalone, zero internal dependencies.
 Reusable by any visualizer:
 
     from engine.ntfy import NtfyPoller
-    poller = NtfyPoller("https://ntfy.sh/my_topic/json?since=20s&poll=1")
+    poller = NtfyPoller("https://ntfy.sh/my_topic/json")
     poller.start()
     # in render loop:
     msg = poller.get_active_message()
@@ -13,24 +13,25 @@ Reusable by any visualizer:
 """
 
 import json
-import time
 import threading
+import time
 import urllib.request
+from urllib.parse import parse_qs, urlencode, urlparse, urlunparse
 
 
 class NtfyPoller:
-    """Background poller for ntfy.sh topics."""
+    """SSE stream listener for ntfy.sh topics. Messages arrive in ~1s (network RTT)."""
 
-    def __init__(self, topic_url, poll_interval=15, display_secs=30):
+    def __init__(self, topic_url, reconnect_delay=5, display_secs=30):
         self.topic_url = topic_url
-        self.poll_interval = poll_interval
+        self.reconnect_delay = reconnect_delay
         self.display_secs = display_secs
         self._message = None  # (title, body, monotonic_timestamp) or None
         self._lock = threading.Lock()
 
     def start(self):
-        """Start background polling thread. Returns True."""
+        """Start background stream thread. Returns True."""
-        t = threading.Thread(target=self._poll_loop, daemon=True)
+        t = threading.Thread(target=self._stream_loop, daemon=True)
         t.start()
         return True
 
@@ -50,19 +51,36 @@ class NtfyPoller:
         with self._lock:
             self._message = None
 
-    def _poll_loop(self):
+    def _build_url(self, last_id=None):
+        """Build the stream URL, substituting since= to avoid message replays on reconnect."""
+        parsed = urlparse(self.topic_url)
+        params = parse_qs(parsed.query, keep_blank_values=True)
+        params["since"] = [last_id if last_id else "20s"]
+        new_query = urlencode({k: v[0] for k, v in params.items()})
+        return urlunparse(parsed._replace(query=new_query))
+
+    def _stream_loop(self):
+        last_id = None
         while True:
             try:
+                url = self._build_url(last_id)
                 req = urllib.request.Request(
-                    self.topic_url, headers={"User-Agent": "mainline/0.1"})
+                    url, headers={"User-Agent": "mainline/0.1"}
-                resp = urllib.request.urlopen(req, timeout=10)
+                )
-                for line in resp.read().decode('utf-8', errors='replace').strip().split('\n'):
+                # timeout=90 keeps the socket alive through ntfy.sh keepalive heartbeats
-                    if not line.strip():
+                resp = urllib.request.urlopen(req, timeout=90)
-                        continue
+                while True:
+                    line = resp.readline()
+                    if not line:
+                        break  # server closed connection — reconnect
                     try:
-                        data = json.loads(line)
+                        data = json.loads(line.decode("utf-8", errors="replace"))
                     except json.JSONDecodeError:
                         continue
+                    # Advance cursor on every event (message + keepalive) to
+                    # avoid replaying already-seen events after a reconnect.
+                    if "id" in data:
+                        last_id = data["id"]
                     if data.get("event") == "message":
                         with self._lock:
                             self._message = (
@@ -72,4 +90,4 @@ class NtfyPoller:
                             )
             except Exception:
                 pass
-            time.sleep(self.poll_interval)
+            time.sleep(self.reconnect_delay)

engine/render.py

@@ -4,14 +4,15 @@ Font loading, text rasterization, word-wrap, gradient coloring, headline block a
 Depends on: config, terminal, sources, translate.
 """
 
-import re
 import random
+import re
+from pathlib import Path
 
 from PIL import Image, ImageDraw, ImageFont
 
 from engine import config
+from engine.sources import NO_UPPER, SCRIPT_FONTS, SOURCE_LANGS
 from engine.terminal import RST
-from engine.sources import SCRIPT_FONTS, SOURCE_LANGS, NO_UPPER
 from engine.translate import detect_location_language, translate_headline
 
 # ─── GRADIENT ─────────────────────────────────────────────
@@ -31,19 +32,75 @@ GRAD_COLS = [
     "\033[2;38;5;235m",  # near black
 ]
 
+# Complementary sweep for queue messages (opposite hue family from ticker greens)
+MSG_GRAD_COLS = [
+    "\033[1;38;5;231m",  # white
+    "\033[1;38;5;225m",  # pale pink-white
+    "\033[38;5;219m",  # bright pink
+    "\033[38;5;213m",  # hot pink
+    "\033[38;5;207m",  # magenta
+    "\033[38;5;201m",  # bright magenta
+    "\033[38;5;165m",  # orchid-red
+    "\033[38;5;161m",  # ruby-magenta
+    "\033[38;5;125m",  # dark magenta
+    "\033[38;5;89m",  # deep maroon-magenta
+    "\033[2;38;5;89m",  # dim deep maroon-magenta
+    "\033[2;38;5;235m",  # near black
+]
+
 # ─── FONT LOADING ─────────────────────────────────────────
 _FONT_OBJ = None
+_FONT_OBJ_KEY = None
 _FONT_CACHE = {}
 
 
 def font():
-    """Lazy-load the primary OTF font."""
+    """Lazy-load the primary OTF font (path + face index aware)."""
-    global _FONT_OBJ
+    global _FONT_OBJ, _FONT_OBJ_KEY
-    if _FONT_OBJ is None:
+    if not config.FONT_PATH:
-        _FONT_OBJ = ImageFont.truetype(config.FONT_PATH, config.FONT_SZ)
+        raise FileNotFoundError(
+            f"No primary font selected. Add .otf/.ttf/.ttc files to {config.FONT_DIR}."
+        )
+    key = (config.FONT_PATH, config.FONT_INDEX, config.FONT_SZ)
+    if _FONT_OBJ is None or key != _FONT_OBJ_KEY:
+        _FONT_OBJ = ImageFont.truetype(
+            config.FONT_PATH, config.FONT_SZ, index=config.FONT_INDEX
+        )
+        _FONT_OBJ_KEY = key
     return _FONT_OBJ
 
 
+def clear_font_cache():
+    """Reset cached font objects after changing primary font selection."""
+    global _FONT_OBJ, _FONT_OBJ_KEY
+    _FONT_OBJ = None
+    _FONT_OBJ_KEY = None
+
+
+def load_font_face(font_path, font_index=0, size=None):
+    """Load a specific face from a font file or collection."""
+    font_size = size or config.FONT_SZ
+    return ImageFont.truetype(font_path, font_size, index=font_index)
+
+
+def list_font_faces(font_path, max_faces=64):
+    """Return discoverable face indexes + display names from a font file."""
+    faces = []
+    for idx in range(max_faces):
+        try:
+            fnt = load_font_face(font_path, idx)
+        except Exception:
+            if idx == 0:
+                raise
+            break
+        family, style = fnt.getname()
+        display = f"{family} {style}".strip()
+        if not display:
+            display = f"{Path(font_path).stem} [{idx}]"
+        faces.append({"index": idx, "name": display})
+    return faces
+
+
 def font_for_lang(lang=None):
     """Get appropriate font for a language."""
     if lang is None or lang not in SCRIPT_FONTS:
@@ -67,7 +124,7 @@ def render_line(text, fnt=None):
     pad = 4
     img_w = bbox[2] - bbox[0] + pad * 2
     img_h = bbox[3] - bbox[1] + pad * 2
-    img = Image.new('L', (img_w, img_h), 0)
+    img = Image.new("L", (img_w, img_h), 0)
     draw = ImageDraw.Draw(img)
     draw.text((-bbox[0] + pad, -bbox[1] + pad), text, fill=255, font=fnt)
     pix_h = config.RENDER_H * 2
@@ -132,9 +189,10 @@ def big_wrap(text, max_w, fnt=None):
     return out
 
 
-def lr_gradient(rows, offset=0.0):
+def lr_gradient(rows, offset=0.0, grad_cols=None):
     """Color each non-space block character with a shifting left-to-right gradient."""
-    n = len(GRAD_COLS)
+    cols = grad_cols or GRAD_COLS
+    n = len(cols)
     max_x = max((len(r.rstrip()) for r in rows if r.strip()), default=1)
     out = []
     for row in rows:
@@ -143,20 +201,29 @@ def lr_gradient(rows, offset=0.0):
             continue
         buf = []
         for x, ch in enumerate(row):
-            if ch == ' ':
+            if ch == " ":
-                buf.append(' ')
+                buf.append(" ")
             else:
                 shifted = (x / max(max_x - 1, 1) + offset) % 1.0
                 idx = min(round(shifted * (n - 1)), n - 1)
-                buf.append(f"{GRAD_COLS[idx]}{ch}\033[0m")
+                buf.append(f"{cols[idx]}{ch}{RST}")
         out.append("".join(buf))
     return out
 
 
+def lr_gradient_opposite(rows, offset=0.0):
+    """Complementary (opposite wheel) gradient used for queue message panels."""
+    return lr_gradient(rows, offset, MSG_GRAD_COLS)
+
+
 # ─── HEADLINE BLOCK ASSEMBLY ─────────────────────────────
 def make_block(title, src, ts, w):
     """Render a headline into a content block with color."""
-    target_lang = (SOURCE_LANGS.get(src) or detect_location_language(title)) if config.MODE == 'news' else None
+    target_lang = (
+        (SOURCE_LANGS.get(src) or detect_location_language(title))
+        if config.MODE == "news"
+        else None
+    )
     lang_font = font_for_lang(target_lang)
     if target_lang:
         title = translate_headline(title, target_lang)
@@ -165,11 +232,18 @@ def make_block(title, src, ts, w):
         title_up = re.sub(r"\s+", " ", title)
     else:
         title_up = re.sub(r"\s+", " ", title.upper())
-    for old, new in [("\u2019","'"), ("\u2018","'"), ("\u201c",'"'),
+    for old, new in [
-                     ("\u201d",'"'), ("\u2013","-"), ("\u2014","-")]:
+        ("\u2019", "'"),
+        ("\u2018", "'"),
+        ("\u201c", '"'),
+        ("\u201d", '"'),
+        ("\u2013", "-"),
+        ("\u2014", "-"),
+    ]:
         title_up = title_up.replace(old, new)
     big_rows = big_wrap(title_up, w - 4, lang_font)
-    hc = random.choice([
+    hc = random.choice(
+        [
             "\033[38;5;46m",  # matrix green
             "\033[38;5;34m",  # dark green
             "\033[38;5;82m",  # lime
@@ -186,7 +260,8 @@ def make_block(title, src, ts, w):
             "\033[38;5;115m",  # sage
             "\033[1;38;5;46m",  # bold green
             "\033[1;38;5;250m",  # bold white
-    ])
+        ]
+    )
     content = ["  " + r for r in big_rows]
     content.append("")
     meta = f"\u2591 {src} \u00b7 {ts}"

engine/scroll.py

@@ -3,16 +3,23 @@ Render engine — ticker content, scroll motion, message panel, and firehose ove
 Depends on: config, terminal, render, effects, ntfy, mic.
 """
 
+import random
 import re
 import sys
 import time
-import random
 from datetime import datetime
 
 from engine import config
-from engine.terminal import RST, W_COOL, CLR, tw, th
+from engine.effects import (
-from engine.render import big_wrap, lr_gradient, make_block
+    fade_line,
-from engine.effects import noise, glitch_bar, fade_line, vis_trunc, next_headline, firehose_line
+    firehose_line,
+    glitch_bar,
+    next_headline,
+    noise,
+    vis_trunc,
+)
+from engine.render import big_wrap, lr_gradient, lr_gradient_opposite, make_block
+from engine.terminal import CLR, RST, W_COOL, th, tw
 
 
 def stream(items, ntfy_poller, mic_monitor):
@@ -40,7 +47,9 @@ def stream(items, ntfy_poller, mic_monitor):
     # Active ticker blocks: (content_rows, color, canvas_y, meta_idx)
     active = []
     scroll_cam = 0  # viewport top in virtual canvas coords
-    ticker_next_y = ticker_view_h  # canvas-y where next block starts (off-screen bottom)
+    ticker_next_y = (
+        ticker_view_h  # canvas-y where next block starts (off-screen bottom)
+    )
     noise_cache = {}
     scroll_motion_accum = 0.0
 
@@ -77,7 +86,9 @@ def stream(items, ntfy_poller, mic_monitor):
                 _msg_cache = (cache_key, msg_rows)
             else:
                 msg_rows = _msg_cache[1]
-            msg_rows = lr_gradient(msg_rows, (time.monotonic() * config.GRAD_SPEED) % 1.0)
+            msg_rows = lr_gradient_opposite(
+                msg_rows, (time.monotonic() * config.GRAD_SPEED) % 1.0
+            )
             # Layout: rendered text + meta + border
             elapsed_s = int(time.monotonic() - m_ts)
             remaining = max(0, config.MESSAGE_DISPLAY_SECS - elapsed_s)
@@ -87,19 +98,29 @@ def stream(items, ntfy_poller, mic_monitor):
             row_idx = 0
             for mr in msg_rows:
                 ln = vis_trunc(mr, w)
-                msg_overlay.append(f"\033[{panel_top + row_idx + 1};1H  {ln}{RST}\033[K")
+                msg_overlay.append(
+                    f"\033[{panel_top + row_idx + 1};1H  {ln}{RST}\033[K"
+                )
                 row_idx += 1
             # Meta line: title (if distinct) + source + countdown
             meta_parts = []
             if m_title and m_title != m_body:
                 meta_parts.append(m_title)
             meta_parts.append(f"ntfy \u00b7 {ts_str} \u00b7 {remaining}s")
-            meta = "  " + " \u00b7 ".join(meta_parts) if len(meta_parts) > 1 else "  " + meta_parts[0]
+            meta = (
-            msg_overlay.append(f"\033[{panel_top + row_idx + 1};1H{MSG_META}{meta}{RST}\033[K")
+                "  " + " \u00b7 ".join(meta_parts)
+                if len(meta_parts) > 1
+                else "  " + meta_parts[0]
+            )
+            msg_overlay.append(
+                f"\033[{panel_top + row_idx + 1};1H{MSG_META}{meta}{RST}\033[K"
+            )
             row_idx += 1
             # Border — constant boundary under message panel
             bar = "\u2500" * (w - 4)
-            msg_overlay.append(f"\033[{panel_top + row_idx + 1};1H  {MSG_BORDER}{bar}{RST}\033[K")
+            msg_overlay.append(
+                f"\033[{panel_top + row_idx + 1};1H  {MSG_BORDER}{bar}{RST}\033[K"
+            )
 
         # Ticker draws above the fixed firehose strip; message is a centered overlay.
         ticker_h = ticker_view_h - msg_h
@@ -111,7 +132,10 @@ def stream(items, ntfy_poller, mic_monitor):
             scroll_cam += 1
 
             # Enqueue new headlines when room at the bottom
-            while ticker_next_y < scroll_cam + ticker_view_h + 10 and queued < config.HEADLINE_LIMIT:
+            while (
+                ticker_next_y < scroll_cam + ticker_view_h + 10
+                and queued < config.HEADLINE_LIMIT
+            ):
                 t, src, ts = next_headline(pool, items, seen)
                 ticker_content, hc, midx = make_block(t, src, ts, w)
                 active.append((ticker_content, hc, ticker_next_y, midx))
@@ -119,8 +143,9 @@ def stream(items, ntfy_poller, mic_monitor):
                 queued += 1
 
             # Prune off-screen blocks and stale noise
-            active = [(c, hc, by, mi) for c, hc, by, mi in active
+            active = [
-                      if by + len(c) > scroll_cam]
+                (c, hc, by, mi) for c, hc, by, mi in active if by + len(c) > scroll_cam
+            ]
             for k in list(noise_cache):
                 if k < scroll_cam:
                     del noise_cache[k]

engine/sources.py

@@ -75,41 +75,41 @@ SOURCE_LANGS = {
 
 # ─── LOCATION → LANGUAGE ─────────────────────────────────
 LOCATION_LANGS = {
-    r'\b(?:china|chinese|beijing|shanghai|hong kong|xi jinping)\b': 'zh-cn',
+    r"\b(?:china|chinese|beijing|shanghai|hong kong|xi jinping)\b": "zh-cn",
-    r'\b(?:japan|japanese|tokyo|osaka|kishida)\b': 'ja',
+    r"\b(?:japan|japanese|tokyo|osaka|kishida)\b": "ja",
-    r'\b(?:korea|korean|seoul|pyongyang)\b': 'ko',
+    r"\b(?:korea|korean|seoul|pyongyang)\b": "ko",
-    r'\b(?:russia|russian|moscow|kremlin|putin)\b': 'ru',
+    r"\b(?:russia|russian|moscow|kremlin|putin)\b": "ru",
-    r'\b(?:saudi|dubai|qatar|egypt|cairo|arabic)\b': 'ar',
+    r"\b(?:saudi|dubai|qatar|egypt|cairo|arabic)\b": "ar",
-    r'\b(?:india|indian|delhi|mumbai|modi)\b': 'hi',
+    r"\b(?:india|indian|delhi|mumbai|modi)\b": "hi",
-    r'\b(?:germany|german|berlin|munich|scholz)\b': 'de',
+    r"\b(?:germany|german|berlin|munich|scholz)\b": "de",
-    r'\b(?:france|french|paris|lyon|macron)\b': 'fr',
+    r"\b(?:france|french|paris|lyon|macron)\b": "fr",
-    r'\b(?:spain|spanish|madrid)\b': 'es',
+    r"\b(?:spain|spanish|madrid)\b": "es",
-    r'\b(?:italy|italian|rome|milan|meloni)\b': 'it',
+    r"\b(?:italy|italian|rome|milan|meloni)\b": "it",
-    r'\b(?:portugal|portuguese|lisbon)\b': 'pt',
+    r"\b(?:portugal|portuguese|lisbon)\b": "pt",
-    r'\b(?:brazil|brazilian|são paulo|lula)\b': 'pt',
+    r"\b(?:brazil|brazilian|são paulo|lula)\b": "pt",
-    r'\b(?:greece|greek|athens)\b': 'el',
+    r"\b(?:greece|greek|athens)\b": "el",
-    r'\b(?:turkey|turkish|istanbul|ankara|erdogan)\b': 'tr',
+    r"\b(?:turkey|turkish|istanbul|ankara|erdogan)\b": "tr",
-    r'\b(?:iran|iranian|tehran)\b': 'fa',
+    r"\b(?:iran|iranian|tehran)\b": "fa",
-    r'\b(?:thailand|thai|bangkok)\b': 'th',
+    r"\b(?:thailand|thai|bangkok)\b": "th",
-    r'\b(?:vietnam|vietnamese|hanoi)\b': 'vi',
+    r"\b(?:vietnam|vietnamese|hanoi)\b": "vi",
-    r'\b(?:ukraine|ukrainian|kyiv|kiev|zelensky)\b': 'uk',
+    r"\b(?:ukraine|ukrainian|kyiv|kiev|zelensky)\b": "uk",
-    r'\b(?:israel|israeli|jerusalem|tel aviv|netanyahu)\b': 'he',
+    r"\b(?:israel|israeli|jerusalem|tel aviv|netanyahu)\b": "he",
 }
 
 # ─── NON-LATIN SCRIPT FONTS (macOS) ──────────────────────
 SCRIPT_FONTS = {
-    'zh-cn': '/System/Library/Fonts/STHeiti Medium.ttc',
+    "zh-cn": "/System/Library/Fonts/STHeiti Medium.ttc",
-    'ja':    '/System/Library/Fonts/ヒラギノ角ゴシック W9.ttc',
+    "ja": "/System/Library/Fonts/ヒラギノ角ゴシック W9.ttc",
-    'ko':    '/System/Library/Fonts/AppleSDGothicNeo.ttc',
+    "ko": "/System/Library/Fonts/AppleSDGothicNeo.ttc",
-    'ru':    '/System/Library/Fonts/Supplemental/Arial.ttf',
+    "ru": "/System/Library/Fonts/Supplemental/Arial.ttf",
-    'uk':    '/System/Library/Fonts/Supplemental/Arial.ttf',
+    "uk": "/System/Library/Fonts/Supplemental/Arial.ttf",
-    'el':    '/System/Library/Fonts/Supplemental/Arial.ttf',
+    "el": "/System/Library/Fonts/Supplemental/Arial.ttf",
-    'he':    '/System/Library/Fonts/Supplemental/Arial.ttf',
+    "he": "/System/Library/Fonts/Supplemental/Arial.ttf",
-    'ar':    '/System/Library/Fonts/GeezaPro.ttc',
+    "ar": "/System/Library/Fonts/GeezaPro.ttc",
-    'fa':    '/System/Library/Fonts/GeezaPro.ttc',
+    "fa": "/System/Library/Fonts/GeezaPro.ttc",
-    'hi':    '/System/Library/Fonts/Kohinoor.ttc',
+    "hi": "/System/Library/Fonts/Kohinoor.ttc",
-    'th':    '/System/Library/Fonts/ThonburiUI.ttc',
+    "th": "/System/Library/Fonts/ThonburiUI.ttc",
 }
 
 # Scripts that have no uppercase
-NO_UPPER = {'zh-cn', 'ja', 'ko', 'ar', 'fa', 'hi', 'th', 'he'}
+NO_UPPER = {"zh-cn", "ja", "ko", "ar", "fa", "hi", "th", "he"}

engine/terminal.py

@@ -4,8 +4,8 @@ No internal dependencies.
 """
 
 import os
-import sys
 import random
+import sys
 import time
 
 # ─── ANSI ─────────────────────────────────────────────────
@@ -49,7 +49,7 @@ def type_out(text, color=G_HI):
     while i < len(text):
         if random.random() < 0.3:
             b = random.randint(2, 5)
-            sys.stdout.write(f"{color}{text[i:i+b]}{RST}")
+            sys.stdout.write(f"{color}{text[i : i + b]}{RST}")
             i += b
         else:
             sys.stdout.write(f"{color}{text[i]}{RST}")

engine/translate.py

@@ -3,10 +3,10 @@ Google Translate wrapper and location→language detection.
 Depends on: sources (for LOCATION_LANGS).
 """
 
-import re
 import json
-import urllib.request
+import re
 import urllib.parse
+import urllib.request
 
 from engine.sources import LOCATION_LANGS
 
@@ -29,8 +29,10 @@ def translate_headline(title, target_lang):
         return _TRANSLATE_CACHE[key]
     try:
         q = urllib.parse.quote(title)
-        url = ("https://translate.googleapis.com/translate_a/single"
+        url = (
-               f"?client=gtx&sl=en&tl={target_lang}&dt=t&q={q}")
+            "https://translate.googleapis.com/translate_a/single"
+            f"?client=gtx&sl=en&tl={target_lang}&dt=t&q={q}"
+        )
         req = urllib.request.Request(url, headers={"User-Agent": "mainline/0.1"})
         resp = urllib.request.urlopen(req, timeout=5)
         data = json.loads(resp.read())

hk.pkl

@@ -0,0 +1,27 @@
+amends "package://github.com/jdx/hk/releases/download/v1.38.0/hk@1.38.0#/Config.pkl"
+import "package://github.com/jdx/hk/releases/download/v1.38.0/hk@1.38.0#/Builtins.pkl"
+
+hooks {
+    ["pre-commit"] {
+        fix = true
+        stash = "git"
+        steps {
+            ["ruff-format"] = (Builtins.ruff_format) {
+                prefix = "uv run"
+            }
+            ["ruff"] = (Builtins.ruff) {
+                prefix = "uv run"
+                check = "ruff check engine/ tests/"
+                fix = "ruff check --fix --unsafe-fixes engine/ tests/"
+            }
+        }
+    }
+    ["pre-push"] {
+        steps {
+            ["ruff"] = (Builtins.ruff) {
+                prefix = "uv run"
+                check = "ruff check engine/ tests/"
+            }
+        }
+    }
+}

mainline.py

@@ -5,40 +5,7 @@ Digital news consciousness stream.
 Matrix aesthetic · THX-1138 hue.
 """
 
-import subprocess, sys, pathlib
+from engine.app import main
-
-# ─── BOOTSTRAP VENV ───────────────────────────────────────
-_VENV = pathlib.Path(__file__).resolve().parent / ".mainline_venv"
-_MARKER = _VENV / ".installed_v3"
-
-def _ensure_venv():
-    """Create a local venv and install deps if needed."""
-    if _MARKER.exists():
-        return
-    import venv
-    print("\033[2;38;5;34m  > first run — creating environment...\033[0m")
-    venv.create(str(_VENV), with_pip=True, clear=True)
-    pip = str(_VENV / "bin" / "pip")
-    subprocess.check_call(
-        [pip, "install", "feedparser", "Pillow", "-q"],
-        stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
-    )
-    _MARKER.touch()
-
-_ensure_venv()
-
-# Install sounddevice on first run after v3
-_MARKER_SD = _VENV / ".installed_sd"
-if not _MARKER_SD.exists():
-    _pip = str(_VENV / "bin" / "pip")
-    subprocess.check_call([_pip, "install", "sounddevice", "numpy", "-q"],
-                          stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
-    _MARKER_SD.touch()
-
-sys.path.insert(0, str(next((_VENV / "lib").glob("python*/site-packages"))))
-
-# ─── DELEGATE TO ENGINE ───────────────────────────────────
-from engine.app import main  # noqa: E402
 
 if __name__ == "__main__":
     main()

mise.toml

@@ -0,0 +1,52 @@
+[tools]
+python = "3.12"
+hk = "latest"
+pkl = "latest"
+
+[tasks]
+# =====================
+# Development
+# =====================
+
+test = "uv run pytest"
+test-v = "uv run pytest -v"
+test-cov = "uv run pytest --cov=engine --cov-report=term-missing --cov-report=html"
+test-cov-open = "uv run pytest --cov=engine --cov-report=term-missing --cov-report=html && open htmlcov/index.html"
+
+lint = "uv run ruff check engine/ mainline.py"
+lint-fix = "uv run ruff check --fix engine/ mainline.py"
+format = "uv run ruff format engine/ mainline.py"
+
+# =====================
+# Runtime
+# =====================
+
+run = "uv run mainline.py"
+run-poetry = "uv run mainline.py --poetry"
+run-firehose = "uv run mainline.py --firehose"
+
+# =====================
+# Environment
+# =====================
+
+sync = "uv sync"
+sync-all = "uv sync --all-extras"
+install = "uv sync"
+install-dev = "uv sync --group dev"
+
+bootstrap = "uv sync && uv run mainline.py --help"
+
+clean = "rm -rf .venv htmlcov .coverage tests/.pytest_cache"
+
+# =====================
+# CI/CD
+# =====================
+
+ci = "uv sync --group dev && uv run pytest --cov=engine --cov-report=term-missing --cov-report=xml"
+ci-lint = "uv run ruff check engine/ mainline.py"
+
+# =====================
+# Git Hooks (via hk)
+# =====================
+
+pre-commit = "hk run pre-commit"

pyproject.toml

@@ -0,0 +1,88 @@
+[project]
+name = "mainline"
+version = "0.1.0"
+description = "Terminal news ticker with Matrix aesthetic"
+readme = "README.md"
+requires-python = ">=3.10"
+authors = [
+    { name = "Mainline", email = "mainline@example.com" }
+]
+license = { text = "MIT" }
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Environment :: Console",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Terminals",
+]
+
+dependencies = [
+    "feedparser>=6.0.0",
+    "Pillow>=10.0.0",
+]
+
+[project.optional-dependencies]
+mic = [
+    "sounddevice>=0.4.0",
+    "numpy>=1.24.0",
+]
+dev = [
+    "pytest>=8.0.0",
+    "pytest-cov>=4.1.0",
+    "pytest-mock>=3.12.0",
+    "ruff>=0.1.0",
+]
+
+[project.scripts]
+mainline = "engine.app:main"
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[dependency-groups]
+dev = [
+    "pytest>=8.0.0",
+    "pytest-cov>=4.1.0",
+    "pytest-mock>=3.12.0",
+    "ruff>=0.1.0",
+]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_functions = ["test_*"]
+addopts = [
+    "--strict-markers",
+    "--tb=short",
+    "-v",
+]
+filterwarnings = [
+    "ignore::DeprecationWarning",
+]
+
+[tool.coverage.run]
+source = ["engine"]
+branch = true
+
+[tool.coverage.report]
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if __name__ == .__main__.:",
+    "if TYPE_CHECKING:",
+    "@abstractmethod",
+]
+
+[tool.ruff]
+line-length = 88
+target-version = "py310"
+
+[tool.ruff.lint]
+select = ["E", "F", "W", "I", "N", "UP", "B", "C4", "SIM"]
+ignore = ["E501", "SIM105", "N806", "B007", "SIM108"]

requirements-dev.txt

@@ -0,0 +1,4 @@
+pytest>=8.0.0
+pytest-cov>=4.1.0
+pytest-mock>=3.12.0
+ruff>=0.1.0

requirements.txt

@@ -0,0 +1,4 @@
+feedparser>=6.0.0
+Pillow>=10.0.0
+sounddevice>=0.4.0
+numpy>=1.24.0

tests/test_config.py

@@ -0,0 +1,162 @@
+"""
+Tests for engine.config module.
+"""
+
+import sys
+import tempfile
+from pathlib import Path
+from unittest.mock import patch
+
+from engine import config
+
+
+class TestArgValue:
+    """Tests for _arg_value helper."""
+
+    def test_returns_value_when_flag_present(self):
+        """Returns the value following the flag."""
+        with patch.object(sys, "argv", ["prog", "--font-file", "test.otf"]):
+            result = config._arg_value("--font-file")
+            assert result == "test.otf"
+
+    def test_returns_none_when_flag_missing(self):
+        """Returns None when flag is not present."""
+        with patch.object(sys, "argv", ["prog"]):
+            result = config._arg_value("--font-file")
+            assert result is None
+
+    def test_returns_none_when_no_value(self):
+        """Returns None when flag is last."""
+        with patch.object(sys, "argv", ["prog", "--font-file"]):
+            result = config._arg_value("--font-file")
+            assert result is None
+
+
+class TestArgInt:
+    """Tests for _arg_int helper."""
+
+    def test_parses_valid_int(self):
+        """Parses valid integer."""
+        with patch.object(sys, "argv", ["prog", "--font-index", "5"]):
+            result = config._arg_int("--font-index", 0)
+            assert result == 5
+
+    def test_returns_default_on_invalid(self):
+        """Returns default on invalid input."""
+        with patch.object(sys, "argv", ["prog", "--font-index", "abc"]):
+            result = config._arg_int("--font-index", 0)
+            assert result == 0
+
+    def test_returns_default_when_missing(self):
+        """Returns default when flag missing."""
+        with patch.object(sys, "argv", ["prog"]):
+            result = config._arg_int("--font-index", 10)
+            assert result == 10
+
+
+class TestResolveFontPath:
+    """Tests for _resolve_font_path helper."""
+
+    def test_returns_absolute_paths(self):
+        """Absolute paths are returned as-is."""
+        result = config._resolve_font_path("/absolute/path.otf")
+        assert result == "/absolute/path.otf"
+
+    def test_resolves_relative_paths(self):
+        """Relative paths are resolved to repo root."""
+        result = config._resolve_font_path("fonts/test.otf")
+        assert str(config._REPO_ROOT) in result
+
+    def test_expands_user_home(self):
+        """Tilde paths are expanded."""
+        with patch("pathlib.Path.expanduser", return_value=Path("/home/user/fonts")):
+            result = config._resolve_font_path("~/fonts/test.otf")
+            assert isinstance(result, str)
+
+
+class TestListFontFiles:
+    """Tests for _list_font_files helper."""
+
+    def test_returns_empty_for_missing_dir(self):
+        """Returns empty list for missing directory."""
+        result = config._list_font_files("/nonexistent/directory")
+        assert result == []
+
+    def test_filters_by_extension(self):
+        """Only returns valid font extensions."""
+        with tempfile.TemporaryDirectory() as tmpdir:
+            Path(tmpdir, "valid.otf").touch()
+            Path(tmpdir, "valid.ttf").touch()
+            Path(tmpdir, "invalid.txt").touch()
+            Path(tmpdir, "image.png").touch()
+
+            result = config._list_font_files(tmpdir)
+            assert len(result) == 2
+            assert all(f.endswith((".otf", ".ttf")) for f in result)
+
+    def test_sorts_alphabetically(self):
+        """Results are sorted alphabetically."""
+        with tempfile.TemporaryDirectory() as tmpdir:
+            Path(tmpdir, "zfont.otf").touch()
+            Path(tmpdir, "afont.otf").touch()
+
+            result = config._list_font_files(tmpdir)
+            filenames = [Path(f).name for f in result]
+            assert filenames == ["afont.otf", "zfont.otf"]
+
+
+class TestDefaults:
+    """Tests for default configuration values."""
+
+    def test_headline_limit(self):
+        """HEADLINE_LIMIT has sensible default."""
+        assert config.HEADLINE_LIMIT > 0
+
+    def test_feed_timeout(self):
+        """FEED_TIMEOUT has sensible default."""
+        assert config.FEED_TIMEOUT > 0
+
+    def test_font_extensions(self):
+        """Font extensions are defined."""
+        assert ".otf" in config._FONT_EXTENSIONS
+        assert ".ttf" in config._FONT_EXTENSIONS
+        assert ".ttc" in config._FONT_EXTENSIONS
+
+
+class TestGlyphs:
+    """Tests for glyph constants."""
+
+    def test_glitch_glyphs_defined(self):
+        """GLITCH glyphs are defined."""
+        assert len(config.GLITCH) > 0
+
+    def test_kata_glyphs_defined(self):
+        """KATA glyphs are defined."""
+        assert len(config.KATA) > 0
+
+
+class TestSetFontSelection:
+    """Tests for set_font_selection function."""
+
+    def test_updates_font_path(self):
+        """Updates FONT_PATH globally."""
+        original = config.FONT_PATH
+        config.set_font_selection(font_path="/new/path.otf")
+        assert config.FONT_PATH == "/new/path.otf"
+        config.FONT_PATH = original
+
+    def test_updates_font_index(self):
+        """Updates FONT_INDEX globally."""
+        original = config.FONT_INDEX
+        config.set_font_selection(font_index=5)
+        assert config.FONT_INDEX == 5
+        config.FONT_INDEX = original
+
+    def test_handles_none_values(self):
+        """Handles None values gracefully."""
+        original_path = config.FONT_PATH
+        original_index = config.FONT_INDEX
+
+        config.set_font_selection(font_path=None, font_index=None)
+        assert original_path == config.FONT_PATH
+        assert original_index == config.FONT_INDEX

tests/test_filter.py

@@ -0,0 +1,93 @@
+"""
+Tests for engine.filter module.
+"""
+
+from engine.filter import skip, strip_tags
+
+
+class TestStripTags:
+    """Tests for strip_tags function."""
+
+    def test_strips_simple_html(self):
+        """Basic HTML tags are removed."""
+        assert strip_tags("<p>Hello</p>") == "Hello"
+        assert strip_tags("<b>Bold</b>") == "Bold"
+        assert strip_tags("<em>Italic</em>") == "Italic"
+
+    def test_strips_nested_html(self):
+        """Nested HTML tags are handled."""
+        assert strip_tags("<div><p>Nested</p></div>") == "Nested"
+        assert strip_tags("<span><strong>Deep</strong></span>") == "Deep"
+
+    def test_strips_html_with_attributes(self):
+        """HTML with attributes is handled."""
+        assert strip_tags('<a href="http://example.com">Link</a>') == "Link"
+        assert strip_tags('<img src="test.jpg" alt="test">') == ""
+
+    def test_handles_empty_string(self):
+        """Empty string returns empty string."""
+        assert strip_tags("") == ""
+        assert strip_tags(None) == ""
+
+    def test_handles_plain_text(self):
+        """Plain text without tags passes through."""
+        assert strip_tags("Plain text") == "Plain text"
+
+    def test_unescapes_html_entities(self):
+        """HTML entities are decoded and tags are stripped."""
+        assert strip_tags("&nbsp;test") == "test"
+        assert strip_tags("Hello &amp; World") == "Hello & World"
+
+    def test_handles_malformed_html(self):
+        """Malformed HTML is handled gracefully."""
+        assert strip_tags("<p>Unclosed") == "Unclosed"
+        assert strip_tags("</p>No start") == "No start"
+
+
+class TestSkip:
+    """Tests for skip function - content filtering."""
+
+    def test_skips_sports_content(self):
+        """Sports-related headlines are skipped."""
+        assert skip("Football: Team wins championship") is True
+        assert skip("NBA Finals Game 7 results") is True
+        assert skip("Soccer match ends in draw") is True
+        assert skip("Premier League transfer news") is True
+        assert skip("Super Bowl halftime show") is True
+
+    def test_skips_vapid_content(self):
+        """Vapid/celebrity content is skipped."""
+        assert skip("Kim Kardashian's new look") is True
+        assert skip("Influencer goes viral") is True
+        assert skip("Red carpet best dressed") is True
+        assert skip("Celebrity couple splits") is True
+
+    def test_allows_real_news(self):
+        """Legitimate news headlines are allowed."""
+        assert skip("Scientists discover new planet") is False
+        assert skip("Economy grows by 3%") is False
+        assert skip("World leaders meet for summit") is False
+        assert skip("New technology breakthrough") is False
+
+    def test_case_insensitive(self):
+        """Filter is case insensitive."""
+        assert skip("FOOTBALL scores") is True
+        assert skip("Football SCORES") is True
+        assert skip("Kardashian") is True
+
+    def test_word_boundary_matching(self):
+        """Word boundary matching works correctly."""
+        assert skip("The football stadium") is True
+        assert skip("Footballer scores") is False
+        assert skip("Footballs on sale") is False
+
+
+class TestIntegration:
+    """Integration tests combining filter functions."""
+
+    def test_full_pipeline(self):
+        """Test strip_tags followed by skip."""
+        html = '<p><a href="#">Breaking: Football championship final</a></p>'
+        text = strip_tags(html)
+        assert text == "Breaking: Football championship final"
+        assert skip(text) is True

tests/test_mic.py

@@ -0,0 +1,83 @@
+"""
+Tests for engine.mic module.
+"""
+
+from unittest.mock import patch
+
+
+class TestMicMonitorImport:
+    """Tests for module import behavior."""
+
+    def test_mic_monitor_imports_without_error(self):
+        """MicMonitor can be imported even without sounddevice."""
+        from engine.mic import MicMonitor
+
+        assert MicMonitor is not None
+
+
+class TestMicMonitorInit:
+    """Tests for MicMonitor initialization."""
+
+    def test_init_sets_threshold(self):
+        """Threshold is set correctly."""
+        from engine.mic import MicMonitor
+
+        monitor = MicMonitor(threshold_db=60)
+        assert monitor.threshold_db == 60
+
+    def test_init_defaults(self):
+        """Default values are set correctly."""
+        from engine.mic import MicMonitor
+
+        monitor = MicMonitor()
+        assert monitor.threshold_db == 50
+
+    def test_init_db_starts_at_negative(self):
+        """_db starts at negative value."""
+        from engine.mic import MicMonitor
+
+        monitor = MicMonitor()
+        assert monitor.db == -99.0
+
+
+class TestMicMonitorProperties:
+    """Tests for MicMonitor properties."""
+
+    def test_excess_returns_positive_when_above_threshold(self):
+        """excess returns positive value when above threshold."""
+        from engine.mic import MicMonitor
+
+        monitor = MicMonitor(threshold_db=50)
+        with patch.object(monitor, "_db", 60.0):
+            assert monitor.excess == 10.0
+
+    def test_excess_returns_zero_when_below_threshold(self):
+        """excess returns zero when below threshold."""
+        from engine.mic import MicMonitor
+
+        monitor = MicMonitor(threshold_db=50)
+        with patch.object(monitor, "_db", 40.0):
+            assert monitor.excess == 0.0
+
+
+class TestMicMonitorAvailable:
+    """Tests for MicMonitor.available property."""
+
+    def test_available_is_bool(self):
+        """available returns a boolean."""
+        from engine.mic import MicMonitor
+
+        monitor = MicMonitor()
+        assert isinstance(monitor.available, bool)
+
+
+class TestMicMonitorStop:
+    """Tests for MicMonitor.stop method."""
+
+    def test_stop_does_nothing_when_no_stream(self):
+        """stop() does nothing if no stream exists."""
+        from engine.mic import MicMonitor
+
+        monitor = MicMonitor()
+        monitor.stop()
+        assert monitor._stream is None

tests/test_ntfy.py

@@ -0,0 +1,70 @@
+"""
+Tests for engine.ntfy module.
+"""
+
+import time
+from unittest.mock import MagicMock, patch
+
+from engine.ntfy import NtfyPoller
+
+
+class TestNtfyPollerInit:
+    """Tests for NtfyPoller initialization."""
+
+    def test_init_sets_defaults(self):
+        """Default values are set correctly."""
+        poller = NtfyPoller("http://example.com/topic")
+        assert poller.topic_url == "http://example.com/topic"
+        assert poller.reconnect_delay == 5
+        assert poller.display_secs == 30
+
+    def test_init_custom_values(self):
+        """Custom values are set correctly."""
+        poller = NtfyPoller(
+            "http://example.com/topic", reconnect_delay=10, display_secs=60
+        )
+        assert poller.reconnect_delay == 10
+        assert poller.display_secs == 60
+
+
+class TestNtfyPollerStart:
+    """Tests for NtfyPoller.start method."""
+
+    @patch("engine.ntfy.threading.Thread")
+    def test_start_creates_daemon_thread(self, mock_thread):
+        """start() creates and starts a daemon thread."""
+        mock_thread_instance = MagicMock()
+        mock_thread.return_value = mock_thread_instance
+
+        poller = NtfyPoller("http://example.com/topic")
+        result = poller.start()
+
+        assert result is True
+        mock_thread.assert_called_once()
+        args, kwargs = mock_thread.call_args
+        assert kwargs.get("daemon") is True
+        mock_thread_instance.start.assert_called_once()
+
+
+class TestNtfyPollerGetActiveMessage:
+    """Tests for NtfyPoller.get_active_message method."""
+
+    def test_returns_none_when_no_message(self):
+        """Returns None when no message has been received."""
+        poller = NtfyPoller("http://example.com/topic")
+        result = poller.get_active_message()
+        assert result is None
+
+
+class TestNtfyPollerDismiss:
+    """Tests for NtfyPoller.dismiss method."""
+
+    def test_dismiss_clears_message(self):
+        """dismiss() clears the current message."""
+        poller = NtfyPoller("http://example.com/topic")
+
+        with patch.object(poller, "_lock"):
+            poller._message = ("Title", "Body", time.monotonic())
+            poller.dismiss()
+
+            assert poller._message is None

tests/test_sources.py

@@ -0,0 +1,93 @@
+"""
+Tests for engine.sources module - data validation.
+"""
+
+from engine import sources
+
+
+class TestFeeds:
+    """Tests for FEEDS data."""
+
+    def test_feeds_is_dict(self):
+        """FEEDS is a dictionary."""
+        assert isinstance(sources.FEEDS, dict)
+
+    def test_feeds_has_entries(self):
+        """FEEDS has feed entries."""
+        assert len(sources.FEEDS) > 0
+
+    def test_feeds_have_valid_urls(self):
+        """All feeds have valid URL format."""
+        for name, url in sources.FEEDS.items():
+            assert name
+            assert url.startswith("http://") or url.startswith("https://")
+
+
+class TestPoetrySources:
+    """Tests for POETRY_SOURCES data."""
+
+    def test_poetry_is_dict(self):
+        """POETRY_SOURCES is a dictionary."""
+        assert isinstance(sources.POETRY_SOURCES, dict)
+
+    def test_poetry_has_entries(self):
+        """POETRY_SOURCES has entries."""
+        assert len(sources.POETRY_SOURCES) > 0
+
+    def test_poetry_have_gutenberg_urls(self):
+        """All poetry sources are from Gutenberg."""
+        for _name, url in sources.POETRY_SOURCES.items():
+            assert "gutenberg.org" in url
+
+
+class TestSourceLangs:
+    """Tests for SOURCE_LANGS mapping."""
+
+    def test_source_langs_is_dict(self):
+        """SOURCE_LANGS is a dictionary."""
+        assert isinstance(sources.SOURCE_LANGS, dict)
+
+    def test_source_langs_valid_language_codes(self):
+        """Language codes are valid ISO codes."""
+        valid_codes = {"de", "fr", "ja", "zh-cn", "ar", "hi"}
+        for code in sources.SOURCE_LANGS.values():
+            assert code in valid_codes
+
+
+class TestLocationLangs:
+    """Tests for LOCATION_LANGS mapping."""
+
+    def test_location_langs_is_dict(self):
+        """LOCATION_LANGS is a dictionary."""
+        assert isinstance(sources.LOCATION_LANGS, dict)
+
+    def test_location_langs_has_patterns(self):
+        """LOCATION_LANGS has regex patterns."""
+        assert len(sources.LOCATION_LANGS) > 0
+
+
+class TestScriptFonts:
+    """Tests for SCRIPT_FONTS mapping."""
+
+    def test_script_fonts_is_dict(self):
+        """SCRIPT_FONTS is a dictionary."""
+        assert isinstance(sources.SCRIPT_FONTS, dict)
+
+    def test_script_fonts_has_paths(self):
+        """All script fonts have paths."""
+        for _lang, path in sources.SCRIPT_FONTS.items():
+            assert path
+
+
+class TestNoUpper:
+    """Tests for NO_UPPER set."""
+
+    def test_no_upper_is_set(self):
+        """NO_UPPER is a set."""
+        assert isinstance(sources.NO_UPPER, set)
+
+    def test_no_upper_contains_scripts(self):
+        """NO_UPPER contains non-Latin scripts."""
+        assert "zh-cn" in sources.NO_UPPER
+        assert "ja" in sources.NO_UPPER
+        assert "ar" in sources.NO_UPPER

tests/test_terminal.py

@@ -0,0 +1,130 @@
+"""
+Tests for engine.terminal module.
+"""
+
+import io
+import sys
+from unittest.mock import patch
+
+from engine import terminal
+
+
+class TestTerminalDimensions:
+    """Tests for terminal width/height functions."""
+
+    def test_tw_returns_columns(self):
+        """tw() returns terminal width."""
+        with (
+            patch.object(sys.stdout, "isatty", return_value=True),
+            patch("os.get_terminal_size") as mock_size,
+        ):
+            mock_size.return_value = io.StringIO("columns=120")
+            mock_size.columns = 120
+            result = terminal.tw()
+            assert isinstance(result, int)
+
+    def test_th_returns_lines(self):
+        """th() returns terminal height."""
+        with (
+            patch.object(sys.stdout, "isatty", return_value=True),
+            patch("os.get_terminal_size") as mock_size,
+        ):
+            mock_size.return_value = io.StringIO("lines=30")
+            mock_size.lines = 30
+            result = terminal.th()
+            assert isinstance(result, int)
+
+    def test_tw_fallback_on_error(self):
+        """tw() falls back to 80 on error."""
+        with patch("os.get_terminal_size", side_effect=OSError):
+            result = terminal.tw()
+            assert result == 80
+
+    def test_th_fallback_on_error(self):
+        """th() falls back to 24 on error."""
+        with patch("os.get_terminal_size", side_effect=OSError):
+            result = terminal.th()
+            assert result == 24
+
+
+class TestANSICodes:
+    """Tests for ANSI escape code constants."""
+
+    def test_ansi_constants_exist(self):
+        """All ANSI constants are defined."""
+        assert terminal.RST == "\033[0m"
+        assert terminal.BOLD == "\033[1m"
+        assert terminal.DIM == "\033[2m"
+
+    def test_green_shades_defined(self):
+        """Green gradient colors are defined."""
+        assert terminal.G_HI == "\033[38;5;46m"
+        assert terminal.G_MID == "\033[38;5;34m"
+        assert terminal.G_LO == "\033[38;5;22m"
+
+    def test_white_shades_defined(self):
+        """White/gray tones are defined."""
+        assert terminal.W_COOL == "\033[38;5;250m"
+        assert terminal.W_DIM == "\033[2;38;5;245m"
+
+    def test_cursor_controls_defined(self):
+        """Cursor control codes are defined."""
+        assert "?" in terminal.CURSOR_OFF
+        assert "?" in terminal.CURSOR_ON
+
+
+class TestTypeOut:
+    """Tests for type_out function."""
+
+    @patch("sys.stdout", new_callable=io.StringIO)
+    @patch("time.sleep")
+    def test_type_out_writes_text(self, mock_sleep, mock_stdout):
+        """type_out writes text to stdout."""
+        with patch("random.random", return_value=0.5):
+            terminal.type_out("Hi", color=terminal.G_HI)
+            output = mock_stdout.getvalue()
+            assert len(output) > 0
+
+    @patch("time.sleep")
+    def test_type_out_uses_color(self, mock_sleep):
+        """type_out applies color codes."""
+        with (
+            patch("sys.stdout", new_callable=io.StringIO),
+            patch("random.random", return_value=0.5),
+        ):
+            terminal.type_out("Test", color=terminal.G_HI)
+
+
+class TestSlowPrint:
+    """Tests for slow_print function."""
+
+    @patch("sys.stdout", new_callable=io.StringIO)
+    @patch("time.sleep")
+    def test_slow_print_writes_text(self, mock_sleep, mock_stdout):
+        """slow_print writes text to stdout."""
+        terminal.slow_print("Hi", color=terminal.G_DIM, delay=0)
+        output = mock_stdout.getvalue()
+        assert len(output) > 0
+
+
+class TestBootLn:
+    """Tests for boot_ln function."""
+
+    @patch("sys.stdout", new_callable=io.StringIO)
+    @patch("time.sleep")
+    def test_boot_ln_writes_label_and_status(self, mock_sleep, mock_stdout):
+        """boot_ln shows label and status."""
+        with patch("random.uniform", return_value=0):
+            terminal.boot_ln("Loading", "OK", ok=True)
+            output = mock_stdout.getvalue()
+            assert "Loading" in output
+            assert "OK" in output
+
+    @patch("sys.stdout", new_callable=io.StringIO)
+    @patch("time.sleep")
+    def test_boot_ln_error_status(self, mock_sleep, mock_stdout):
+        """boot_ln shows red for error status."""
+        with patch("random.uniform", return_value=0):
+            terminal.boot_ln("Loading", "FAIL", ok=False)
+            output = mock_stdout.getvalue()
+            assert "FAIL" in output