Initial release: LangGraph memory-aware agent brain

.env.example

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+# Supermemory API key (get from https://console.supermemory.ai)
+SUPERMEMORY_API_KEY=sm_...
+
+# xAI Grok API key (get from https://console.x.ai/)
+XAI_API_KEY=xai_...
+
+# Optional: Anthropic (if you prefer Claude instead of Grok)
+# ANTHROPIC_API_KEY=sk-ant-...
+
+# LLM configuration
+LLM_PROVIDER=xai          # xai | anthropic
+LLM_MODEL=grok-3          # For xai: grok-3, grok-4, grok-3-latest, etc.
+                          # For anthropic: claude-3-7-sonnet-20250219, claude-3-5-haiku-20241022, etc.
+LLM_TEMPERATURE=0.7
+LLM_MAX_TOKENS=2048
+
+# Default user/container for demo (change per user/session)
+DEFAULT_USER_ID=demo-user
+
+# --- DGX Spark Desktop Local LLM (single-node v1: 120b Nemotron via NIM on :8000) ---
+# After `docker compose up nemotron` (or the manual nemotron-120b container), use this.
+# The 120b-class model gives the best responsive quality currently practical on one DGX Spark.
+# (340b-class requires 2-3x DGX Spark nodes clustered; same agent/voice code works unchanged.)
+#LLM_PROVIDER=openai_compatible
+#LLM_BASE_URL=http://localhost:8000/v1
+#LLM_MODEL=nvidia/nemotron-3-super-120b-a12b
+#OPENAI_API_KEY=dummy
+#DEFAULT_USER_ID=grok-dgx-voice-agent
+#
+# Once the model is fully loaded, test with:
+#   make env
+#   make chat
+# (or source .env and run the venv thelab-chat directly)

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install minimal CPU-only dependencies
+        # The full package depends on audio/GPU libraries (sounddevice / PortAudio,
+        # nvidia-riva-client) that the voice layer needs but the tests do not.
+        # We install the package without its deps, then add only the lightweight
+        # set required to import and test the agent brain on a plain CPU runner.
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e . --no-deps
+          pip install \
+            "langchain-core>=0.3" \
+            "langgraph>=0.2" \
+            "pydantic>=2.0" \
+            "pydantic-settings>=2.0" \
+            "python-dotenv>=1.0" \
+            "rich>=13.0" \
+            "supermemory>=0.1" \
+            "pytest>=8.0" \
+            "pytest-asyncio>=0.23" \
+            "ruff>=0.4"
+
+      - name: Lint
+        run: ruff check .
+
+      - name: Test
+        run: pytest -q

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+Pipfile.lock
+
+# poetry
+poetry.lock
+
+# pdm
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# IDEs
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Project specific
+supermemory.db
+*.log
+
+# Benchmark reports - keep the structure and .gitkeep + summary files,
+# but large raw logs / binaries can be ignored if they get big.
+benchmarks/reports/*/
+!benchmarks/reports/*/.gitkeep
+!benchmarks/reports/*/summary.md
+!benchmarks/reports/*/metrics.json
+!benchmarks/reports/*/events.jsonl
+!benchmarks/reports/*/config.json
+
+# Temporary benchmark artifacts
+*.bench
+bench-*.log

Dockerfile

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+# Dockerfile for the thelab-voice-agent service
+# Target: DGX Spark (and general NVIDIA GPU environments)
+
+FROM python:3.12-slim AS builder
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy everything needed for metadata + build
+COPY pyproject.toml .
+COPY README.md .
+COPY src/ ./src/
+
+# Build the wheel (non-editable, clean)
+RUN pip install --no-cache-dir build && \
+    python -m build --wheel --outdir /wheels .
+
+# ---- Runtime image ----
+FROM python:3.12-slim
+
+# Create non-root user
+RUN useradd --create-home --shell /bin/bash appuser
+
+WORKDIR /app
+
+# Audio runtime for sounddevice (used by the voice layer for mic/speakers on desktop DGX Spark).
+# This is only required when running `thelab-chat voice`. The text `chat` command works without it.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        libportaudio2 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install the wheel + runtime deps only
+COPY --from=builder /wheels /wheels
+RUN pip install --no-cache-dir /wheels/*.whl && \
+    chown -R appuser:appuser /app
+
+USER appuser
+
+# Default command (override in compose or at runtime)
+# Example for voice: thelab-chat voice --user derek
+ENTRYPOINT ["thelab-chat"]
+CMD ["--help"]

LICENSE

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+MIT License
+
+Copyright (c) 2026 Derek Clair
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.