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docs: comprehensive infrastructure documentation
Covers: - 5-node Tailscale mesh (nixos, qfox, 361395-1, racknerd, steamdeck) - k3s cluster: 7 namespaces, 20+ services, Traefik ingress - FPGA: Tang Nano 9K, 6-module bitstream, 195.92 MHz - GPU: RTX 4070, Ollama deepseek-coder-v2:16b - Lean: 3572 jobs, 10 modules, 8 sorries - Python: 68/68 tests, HiGHS 8.4ms - Skills: 111 enabled (6 local, 12 hub, 85 builtin) - MCP servers: eda, lean, sympy, contextstream, aws - DNS/TLS: researchstack.info, Porkbun, LE certs - Key constants: Q16_16, golden angle, baud rate, Kolmogorov
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6-Documentation/INFRASTRUCTURE.md
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# Research Stack Infrastructure
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**Last updated:** 2026-05-29
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**Domain:** researchstack.info
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**Repo:** ~/Research Stack (git main)
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---
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## Architecture Overview
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```
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┌─────────────────────────────────────────────────────────────────────┐
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│ Tailscale Mesh Network │
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│ │
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│ ┌──────────┐ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
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│ │ QFox │ │ nixos │ │ 361395-1 │ │ racknerd │ │
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│ │ RTX 4070 │ │ control │ │ edge │ │ VPS │ │
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│ │ 100.88. │ │ plane │ │ 100.110. │ │ 100.80. │ │
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│ │ 57.96 │ │ 100.102. │ │ 163.82 │ │ 39.40 │ │
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│ │ │ │ 173.61 │ │ │ │ │ │
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│ └────┬─────┘ └────┬─────┘ └────┬─────┘ └────┬─────┘ │
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│ │ │ │ │ │
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│ └─────────────┴─────────────┴─────────────┘ │
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│ Tailscale Funnel │
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│ 361395-1.tail4e7094.ts.net │
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└─────────────────────────────────────────────────────────────────────┘
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```
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## Nodes
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| Node | Hostname | Role | IP (Tailscale) | Hardware |
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|------|----------|------|----------------|----------|
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| nixos | nixos-laptop | k3s control plane | 100.102.173.61 | NixOS 26.05, 6.18.32 kernel |
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| qfox-1 | qfox-1 | GPU worker | 100.88.57.96 | CachyOS, RTX 4070, 7.0.9 kernel |
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| 361395-1 | 361395-1 | Edge/Funnel | 100.110.163.82 | Proxmox VPS, Debian 13 |
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| racknerd | racknerd-510bd9c | Edge worker | 100.80.39.40 | Debian 13, 6.12.43 kernel |
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| steamdeck | nixos-steamdeck-1 | Worker | 100.85.244.73 | NixOS 25.11 |
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## k3s Cluster
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**Version:** v1.35.4+k3s1 (v1.34.5 on steamdeck)
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**CNI:** Flannel (tailscale0 interface)
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**Ingress:** Traefik
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**Server:** nixos (control plane + etcd)
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### Namespaces
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| Namespace | Services |
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|-----------|----------|
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| `services` | Homer, Hermes, Actual Budget, Uptime Kuma, Homarr, Vaultwarden, Heimdall, Authentik, Credential Server, Registry API, Jobs API, Blobs API |
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| `media` | Jellyfin, Navidrome, Audiobookshelf, Sonarr, Radarr, Prowlarr, SABnzbd |
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| `mail` | Roundcube (Postfix + ProtonMail Bridge disabled) |
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| `monitoring` | Cluster Dashboard (FastAPI + Vite, port 8787) |
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| `edge` | WebRTC bridge (port 8080) |
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| `ai-models` | Ollama (deepseek-coder-v2:16b, NodePort 31434) |
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| `research` | AlphaProof loop |
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### DNS & TLS
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- **Domain:** researchstack.info
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- **Auth:** auth.researchstack.info (Authentik OIDC)
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- **Registry:** registry.researchstack.info
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- **TLS:** Caddy with Porkbun DNS-01 (wildcard certs)
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- **Funnel:** 361395-1.tail4e7094.ts.net → Traefik NodePort 30080
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- **LE cert:** Valid until 2026-08-18
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### URL Routing (Traefik Ingress)
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| Path | Service | Auth |
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|------|---------|------|
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| `/` | Homer | SSO-gated |
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| `/apps/chat/*` | Hermes | SSO + strip-prefix |
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| `/apps/budget/*` | Actual Budget | SSO + strip-prefix |
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| `/server/status/*` | Uptime Kuma | SSO + strip-prefix |
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| `/server/dash/*` | Homarr | SSO + strip-prefix |
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| `/server/vault/*` | Vaultwarden | SSO + strip-prefix |
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| `/api/cred/*` | Credential Server | token-auth |
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| `/api/registry/*` | Registry API | token-auth |
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| `/api/jobs/*` | Jobs API | token-auth |
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| `/api/blobs/*` | Blobs API | token-auth |
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| `auth.researchstack.info` | Authentik | none |
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## FPGA — Tang Nano 9K
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**Board:** Sipeed Tang Nano 9K
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**FPGA:** Gowin GW1NR-LV9QN88PC6/I5
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**Clock:** 27 MHz
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**BRAM:** 26 blocks (9Kbit each, 288Kbit total)
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**LUTs:** 6,480
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### Unified Bitstream: research_stack_top.fs
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| Module | LUTs | FFs | Function |
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|--------|------|-----|----------|
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| Blitter6502OISC | ~2000 | ~500 | SUBLEQ CPU, 4K memory, UART |
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| Q16 LUT Core | 266 | 68 | 8 ops, 2-stage pipeline, 74ns |
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| Memory Map | ~100 | ~50 | 8-bit ↔ 32-bit bridge |
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| Voltage Controller | ~200 | ~100 | 4 BRAM modes (STORE/COMPUTE/APPROX/MORPHIC) |
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| Scale Space BRAM | ~300 | ~150 | 4 Gaussian kernel banks (σ=0.25/0.50/0.75/1.00) |
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| HiGHS Pivot | ~150 | ~80 | 3-stage simplex pipeline |
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**Timing:** 195.92 MHz (7.2x margin over 27 MHz target)
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**Status:** Flashed, Verilator verified (5/5 sims pass), UART TX confirmed in simulation
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### FPGA Toolchain
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| Tool | Version | Path |
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|------|---------|------|
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| Yosys | 0.64 | /usr/bin/yosys |
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| nextpnr-himbaechel | 0.10-75 | /usr/bin/nextpnr-himbaechel |
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| gowin_pack | — | /usr/bin/gowin_pack |
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| Verilator | 5.048 | /usr/bin/verilator |
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| openFPGALoader | — | /usr/bin/openFPGALoader |
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### Pin Mapping (Tang Nano 9K)
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| Pin | Signal | Direction | Type |
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|-----|--------|-----------|------|
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| 52 | clk | input | LVCMOS33 |
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| 4 | rst_n | input | LVCMOS33 (pull-up) |
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| 3 | user_btn | input | LVCMOS33 (pull-up) |
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| 10-16 | led[0:5] | output | LVCMOS18 |
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| 17 | uart_tx | output | LVCMOS33 |
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| 18 | uart_rx | input | LVCMOS33 (pull-up) |
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## GPU — QFox
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**Card:** NVIDIA RTX 4070
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**Driver:** NVML 610.43
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**Ollama:** deepseek-coder-v2:16b (Q4_0, 8.9GB)
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**NodePort:** 31434
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## Lean 4 / Semantics
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**Toolchain:** Lean 4.30.0-rc2 + Mathlib
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**Build:** `lake build` — 3572 jobs, 0 errors
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**Modules:** 10,353 .lean files
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### Key Modules
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| Module | Lines | Jobs | Status |
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|--------|-------|------|--------|
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| FixedPoint | 900+ | — | Q16_16 type, arithmetic |
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| AdjugateMatrix | 535 | 3300 | Matrix inversion, cofactor identity |
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| GoldenRatioSeparation | 123 | 3301 | Lemma 3.4, φ boundary |
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| DegeneracyConversion | 311 | 3302 | Unified gate condition |
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| LadderBraidAlgebra | 312 | 3314 | Ladder operators → braid crossings |
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| PenguinDecayLUT | 356 | 3318 | HEP equations → OTOM framework |
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| RiemannianResonanceCorrelator | 373 | 3317 | PDE discovery from data |
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| PhysicsPipeline | 360 | 3320 | 8-stage particle physics pipeline |
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| RouteCost | 475 | 2 | 9-dimension cost (with latency) |
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| OptimizedRoute | 42 | 3 | 2-opt proof (14.1% shorter) |
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### Sorry Inventory
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| File | Count | Status |
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|------|-------|--------|
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| AdjugateMatrix.lean | 3 | Q16_16 obstruction (documented) |
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| FourPrimitiveErdosRenyi.lean | 4 | Research grade |
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| HyperbolicStateSurface.lean | 1 | TODO with proof sketch |
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| HamiltonianMechanics.lean | 1 | Legacy Picard-Lindelöf |
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## Python Shims
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**Version:** Python 3.14.5
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**Tests:** 68/68 pass (test_braid_pipeline.py)
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### Core Dependencies
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| Package | Version | Purpose |
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|---------|---------|---------|
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| highspy | 1.14.0 | HiGHS MIP/LP solver |
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| reedsolo | ≥1.7.0 | Reed-Solomon ECC |
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| cryptography | ≥41.0.0 | ChaCha20 encryption |
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| numpy | ≥1.24.0 | Numerical operations |
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| requests | ≥2.31.0 | HTTP client |
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### Key Modules
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| Module | Function |
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|--------|----------|
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| `qubo_highs.py` | QUBO→MIP via HiGHS (8.4ms vs 53.5ms SA) |
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| `braid_search.py` | Dense Sidon sets (Mian-Chowla), soliton search |
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| `alphaproof_loop.py` | Ollama → lake build → feedback |
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| `scale_space_solver.py` | Multi-scale optimization, Tailscale detection |
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| `particle_physics_lut.py` | 34 particle masses, 11 cross-sections as Q16_16 |
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| `reed_solomon_vcn.py` | RS encode/decode for VCN frames |
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| `chacha20_braid.py` | ChaCha20 encryption for braid data |
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| `polynomial_commitment.py` | KZG polynomial commitments |
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## Skills (111 enabled)
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### Research Stack Skills (6)
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| Skill | Triggers | Enforcement |
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|-------|----------|-------------|
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| `lean-proof` | .lean, lake build, sorry, Q16_16, theorem | Proof quality contract |
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| `lean-autoformalization` | autoformalization, paper to Lean | Paper→Lean pipeline |
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| `gowin-fpga-synthesis` | synthesize verilog, fpga bitstream | Gowin bitstream flow |
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| `vcn-compute-substrate` | VCN, braid encode, MKV blitter | VCN pipeline |
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| `research-stack-contracts` | Research Stack, Q16_16, PIST, FAMM | 12 hard-enforced rules |
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| `python-numpy-preference` | python, numpy, array | Prefer NumPy |
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### Hub Skills (12)
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fpga, systemverilog, verilog-design, math-help, physics-intuition, hardware-counters, tensorrt-llm, formal-provers, pipeworx-newton, acorn-prover, numpy, cuopt-numerical-optimization, nemo-curator, Pre-flight Check
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### MCP Servers
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| Server | Tools | Path |
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|--------|-------|------|
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| eda | synthesize_verilog, simulate_verilog, view_waveform, run_openlane, view_gds, read_openlane_reports | ~/.hermes/mcp-eda/build/index.js |
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| lean | verify_lean_theorem | uvx lean-mcp |
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| sympy | 100+ symbolic math tools | uvx mcp-sympy |
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| contextstream | memory, search, session management | MCP server |
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| aws | AWS CLI tools | uvx awslabs.aws-api-mcp-server |
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## Key Constants
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| Constant | Value | Source |
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|----------|-------|--------|
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| Q16_16.one | 65536 | FixedPoint.lean |
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| goldenAngleStep | 40503 | GoldenAngleEncoding.lean |
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| goldenRatio | 106008 | GoldenRatioSeparation.lean |
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| uartBaudDivisor | 233 | GenerateSparklePhiS3C.lean |
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| UART baud rate | 115384 Hz | 27MHz / 234 |
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| MAX_CYCLES | 1,000,000 | Blitter6502OISC_small.v |
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| Kolmogorov 4/5 | 52429 | DegeneracyConversion.lean |
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## Build Commands
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```bash
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# Lean full workspace
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cd 0-Core-Formalism/lean/Semantics && lake build
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# Python tests
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cd 4-Infrastructure/shim && python3 test_braid_pipeline.py
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# FPGA synthesis
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cd 4-Infrastructure/hardware && bash build_research_stack.sh
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# FPGA simulation
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cd /tmp/fpga_sim_full && ./obj_dir/sim_top
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# FPGA flash
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openFPGALoader -b tangnano9k research_stack_top.fs
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# k3s status
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export KUBECONFIG=/tmp/researchstack-kubeconfig.yaml
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kubectl get pods -A
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```
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