fix: use mautrix[encryption] instead of matrix-nio for Matrix bridge

The Hermes Matrix gateway uses the mautrix SDK, not matrix-nio.
This fixes E2EE support by installing the correct library.

Refs: PR #2

ai/compose.yml

@@ -26,13 +26,14 @@ services:
       - "traefik.http.routers.webui-https.tls.certresolver=njalla"
 
   hermes:
-    build:
+    image: nousresearch/hermes-agent:latest
-      context: ./hermes
-      dockerfile: Dockerfile
     container_name: hermes
     restart: always
     # Gateway run enables the internal API server on port 8642
-    command: gateway run
+    # Install openai and mautrix[encryption] for Matrix bridge with E2EE support on startup
+    # Uses uv (modern Python package manager) with --system flag for venv installation
+    entrypoint: >
+      sh -c "/opt/hermes/.venv/bin/uv pip install openai mautrix[encryption] --system -q && /opt/hermes/.venv/bin/hermes gateway run"
     environment:
       - OLLAMA_HOST=http://ollama:11434
       - API_SERVER_ENABLED=true
@@ -41,14 +42,9 @@ services:
       - API_SERVER_KEY=hermes_local_key
       - GATEWAY_ALLOW_ALL_USERS=true
       - OPENROUTER_API_KEY=${OPENROUTER_API_KEY}
-      # ROCm for GPU-accelerated faster-whisper STT
-      - HSA_OVERRIDE_GFX_VERSION=9.0.6
-      - HCC_AMDGPU_TARGET=gfx906
-      - HIP_VISIBLE_DEVICES=0,1
-      - ROCR_VISIBLE_DEVICES=0,1
-      - HSA_ENABLE_SDMA=0
     volumes:
       - /mnt/HoardingCow_docker_data/Hermes/data:/opt/data
+      - /mnt/HoardingCow_docker_data/Hermes/venv:/opt/hermes/.venv
     devices:
       - /dev/kfd:/dev/kfd
       - /dev/dri:/dev/dri