feat: Enable and configure figment mode via new CLI flags, update documentation, and improve Cairo library detection on macOS.

README.md

@@ -45,6 +45,8 @@ python3 mainline.py                      # news stream
 python3 mainline.py --poetry             # literary consciousness mode
 python3 mainline.py -p                   # same
 python3 mainline.py --firehose           # dense rapid-fire headline mode
+python3 mainline.py --figment            # enable periodic SVG glyph overlays
+python3 mainline.py --figment-interval 30 # figment every 30 seconds (default: 60)
 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
@@ -80,6 +82,7 @@ All constants live in `engine/config.py`:
 | `FRAME_DT` | `0.05` | Frame interval in seconds (20 FPS) |
 | `GRAD_SPEED` | `0.08` | Gradient sweep speed (cycles/sec, ~12s full sweep) |
 | `FIREHOSE_H` | `12` | Firehose zone height (terminal rows) |
+| `FIGMENT_INTERVAL` | `60` | Seconds between figment appearances (set by `--figment-interval`) |
 | `NTFY_TOPIC` | klubhaus URL | ntfy.sh JSON stream endpoint |
 | `NTFY_RECONNECT_DELAY` | `5` | Seconds before reconnecting after a dropped SSE stream |
 | `MESSAGE_DISPLAY_SECS` | `30` | How long an ntfy message holds the screen |
@@ -129,15 +132,11 @@ Update `NTFY_TOPIC` in `engine/config.py` to point at your own topic.
 
 Figment mode periodically overlays a full-screen SVG glyph on the running ticker — flickering through a reveal → hold (strobe) → dissolve cycle, colored with a randomly selected theme gradient.
 
-**Enable it** by setting the plugin's config at runtime (no CLI flag yet):
+**Enable it** with the `--figment` flag:
 
-```python
-from engine.effects.registry import get_registry
-plugin = get_registry().get("figment")
-if plugin:
-    plugin.config.enabled = True
-    plugin.config.params["interval_secs"] = 60   # seconds between appearances
-    plugin.config.params["display_secs"] = 4.5   # duration of each appearance
+```bash
+uv run mainline.py --figment                   # glyph every 60 seconds (default)
+uv run mainline.py --figment --figment-interval 30  # every 30 seconds
 ```
 
 **Figment assets** live in `figments/` — drop any `.svg` file there and it will be picked up automatically. The bundled set contains Mayan and Aztec glyphs. Figments are selected randomly, avoiding immediate repeats, and rasterized into half-block terminal art at display time.
@@ -159,7 +158,7 @@ Built-in commands: `TRIGGER`, `SET_INTENSITY`, `SET_INTERVAL`, `SET_COLOR`, `STO
 **System dependency:** Figment mode requires the Cairo C library (`brew install cairo` on macOS) in addition to the `figment` extras group:
 
 ```bash
-uv sync --extras figment   # adds cairosvg
+uv sync --extra figment   # adds cairosvg
 ```
 
 ---
@@ -287,7 +286,7 @@ Requires Python 3.10+ and [uv](https://docs.astral.sh/uv/).
 ```bash
 uv sync                              # minimal (no mic, no figment)
 uv sync --extras mic                 # with mic support (sounddevice + numpy)
-uv sync --extras figment             # with figment mode (cairosvg + system Cairo)
+uv sync --extra figment              # with figment mode (cairosvg + system Cairo)
 uv sync --all-extras                 # all optional features
 uv sync --all-extras --group dev     # full dev environment
 ```
@@ -343,7 +342,6 @@ Pre-commit hooks run lint automatically via `hk`.
 - **Parallax secondary column** — a second, dimmer, faster-scrolling stream of ambient text at reduced opacity on one side
 
 ### Cyberpunk Vibes
-- **Figment CLI flag** — expose `--figment` and `--figment-interval N` to enable figment mode from the command line without code changes
 - **Figment intensity wiring** — `config.intensity` currently stored but not yet applied to reveal/dissolve speed or strobe frequency
 - **ntfy figment trigger** — built-in `NtfyFigmentTrigger` that listens on a dedicated topic to fire figments on demand
 - **Keyword watch list** — highlight or strobe any headline matching tracked terms (names, topics, tickers)

engine/app.py

@@ -413,6 +413,14 @@ def main():
     if config.FIREHOSE:
         boot_ln("Firehose", "ENGAGED", True)
 
+    if config.FIGMENT:
+        try:
+            from effects_plugins.figment import FigmentEffect  # noqa: F401
+
+            boot_ln("Figment", f"ARMED [{config.FIGMENT_INTERVAL}s interval]", True)
+        except (ImportError, OSError):
+            boot_ln("Figment", "UNAVAILABLE — run: brew install cairo", False)
+
     time.sleep(0.4)
     slow_print("  > STREAMING...\n")
     time.sleep(0.2)

engine/config.py

@@ -196,6 +196,8 @@ MODE = (
     else "news"
 )
 FIREHOSE = "--firehose" in sys.argv
+FIGMENT = "--figment" in sys.argv
+FIGMENT_INTERVAL = _arg_int("--figment-interval", 60)  # seconds between appearances
 
 # ─── NTFY MESSAGE QUEUE ──────────────────────────────────
 NTFY_TOPIC = "https://ntfy.sh/klubhaus_terminal_mainline/json"

engine/figment_render.py

@@ -7,8 +7,20 @@ Follows the same pixel-pair approach as engine/render.py for OTF fonts.
 
 from __future__ import annotations
 
+import os
+import sys
 from io import BytesIO
 
+# cairocffi (used by cairosvg) calls dlopen() to find the Cairo C library.
+# On macOS with Homebrew, Cairo lives in /opt/homebrew/lib (Apple Silicon) or
+# /usr/local/lib (Intel), which are not in dyld's default search path.
+# Setting DYLD_LIBRARY_PATH before the import directs dlopen() to those paths.
+if sys.platform == "darwin" and not os.environ.get("DYLD_LIBRARY_PATH"):
+    for _brew_lib in ("/opt/homebrew/lib", "/usr/local/lib"):
+        if os.path.exists(os.path.join(_brew_lib, "libcairo.2.dylib")):
+            os.environ["DYLD_LIBRARY_PATH"] = _brew_lib
+            break
+
 import cairosvg
 from PIL import Image
 

engine/scroll.py

@@ -55,14 +55,16 @@ def stream(items, ntfy_poller, mic_monitor, display: Display | None = None):
     frame_number = 0
 
     # Figment overlay (optional — requires cairosvg)
+    figment = None
+    if config.FIGMENT:
         try:
             from effects_plugins.figment import FigmentEffect
-        from engine.effects.registry import get_registry
 
-        _fg_plugin = get_registry().get("figment")
-        figment = _fg_plugin if isinstance(_fg_plugin, FigmentEffect) else None
-    except ImportError:
-        figment = None
+            figment = FigmentEffect()
+            figment.config.enabled = True
+            figment.config.params["interval_secs"] = config.FIGMENT_INTERVAL
+        except (ImportError, OSError):
+            pass
 
     while True:
         if queued >= config.HEADLINE_LIMIT and not active: