Mike Swanson
aaf4172b3c
New projects from 2026-02-09 research session: Wrightstown Solar: - DIY 48V LiFePO4 battery storage (EVE C40 cells) - Victron MultiPlus II whole-house UPS design - BMS comparison (Victron CAN bus compatible) - EV salvage analysis (new cells won) - Full parts list and budget Wrightstown Smart Home: - Home Assistant Yellow setup (local voice, no cloud) - Local LLM server build guide (Ollama + RTX 4090) - Hybrid LLM bridge (LiteLLM + Claude API + Grok API) - Network security (VLAN architecture, PII sanitization) Machine: ACG-M-L5090 Timestamp: 2026-02-09 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
86 lines
3.3 KiB
Markdown
86 lines
3.3 KiB
Markdown
# Wrightstown Smart Home - Session Log 2026-02-09
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**Session:** Initial Research and Planning
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**Machine:** ACG-M-L5090
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---
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## Work Completed
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### 1. Project Scope Defined
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- Privacy-first smart home (no Google/Alexa)
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- Home Assistant Yellow (already owned, not set up)
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- Local LLM server for private queries
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- Hybrid bridge: local + Claude API + Grok API
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- Separate project from Wrightstown Solar, with planned crossover
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### 2. Home Assistant Yellow Research
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- Yellow still receives updates despite production ending Oct 2025
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- Needs CM4 or CM5 compute module (not included)
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- Built-in Zigbee 3.0 radio, M.2 NVMe slot
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- Local voice: Wyoming + Whisper + Piper (all local, no cloud)
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- Victron integration planned via Modbus TCP (future crossover)
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### 3. Local LLM Server Research
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- Recommended build: RTX 4090 24GB ($1,940-2,240)
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- Software: Ollama (primary) + Open WebUI (interface)
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- Models: Qwen 2.5 7B (fast voice), Llama 3.1 70B Q4 (reasoning)
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- Alternative builds researched: budget ($580), flagship ($4,000+), Mac Mini M4
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### 4. Hybrid Bridge Design
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- LiteLLM proxy as unified routing layer
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- Routes: local (Ollama) / Claude API (reasoning) / Grok API (search)
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- 80/15/5 split estimated at ~$5/month cloud costs
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- Manual routing first, keyword-based later, semantic routing eventual
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- Integration with HA via Extended OpenAI Conversation
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### 5. Network Security Design
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- 4-VLAN architecture: Trusted / Infrastructure / IoT / Guest
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- IoT isolation (devices can't reach trusted network)
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- PII sanitization pipeline for cloud-bound queries
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- Private data (cameras, sensors, presence) stays local only
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- Remote access via Tailscale or WireGuard
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---
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## Decisions Made
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| Decision | Chosen | Rationale |
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| Smart home platform | Home Assistant | Open source, local-first, 2000+ integrations |
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| Hardware | HA Yellow (owned) | Built-in Zigbee, already purchased |
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| Voice assistant | Wyoming/Whisper/Piper | Fully local, no cloud dependency |
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| LLM server GPU | RTX 4090 24GB (recommended) | Best price/performance for 70B models |
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| LLM software | Ollama | Simplest, OpenAI-compatible API |
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| Hybrid routing | LiteLLM | Unified API, cost tracking, fallbacks |
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| Cloud: reasoning | Claude API (Anthropic) | Best reasoning quality |
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| Cloud: search | Grok API (xAI) | Internet access, 2M context |
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| Network | VLAN segmentation | IoT isolation, privacy |
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| Separate from solar | Yes | Different timelines, crossover later |
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---
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## Files Created
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- `projects/wrightstown-smarthome/PROJECT_INDEX.md`
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- `projects/wrightstown-smarthome/documentation/ha-yellow-setup.md`
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- `projects/wrightstown-smarthome/documentation/llm-server-build.md`
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- `projects/wrightstown-smarthome/documentation/hybrid-bridge.md`
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- `projects/wrightstown-smarthome/documentation/network-security.md`
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- `projects/wrightstown-smarthome/session-logs/2026-02-09-session.md` (this file)
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---
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## Next Steps
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- [ ] Check if CM4/CM5 module is owned or needs purchasing
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- [ ] Set up HA Yellow (basic install, Zigbee, first automations)
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- [ ] Research specific Zigbee devices to purchase
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- [ ] Decide on LLM server GPU budget (3060 budget vs 4090 sweet spot)
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- [ ] Purchase LLM server hardware
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- [ ] Decide on VLAN hardware (TP-Link Omada vs Ubiquiti UniFi)
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- [ ] Set up Ollama + Open WebUI
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- [ ] Create Anthropic API account + Grok API account
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- [ ] Configure LiteLLM proxy
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- [ ] Integrate with HA via Extended OpenAI Conversation
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