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Sam Rolfe 4c05bb9657 sam-4screen-desktop 2026-8-3:12:59:15

2026-08-03 12:59:15 +10:00

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Home Network Map

Overview

Network	Router/Gateway
Subnet	`192.168.20.0/24`
Gateway	`192.168.20.1`
DNS	Pi-hole on .13 (primary) + .35 (secondary)

Machines

.27 — sam-4screen-desktop (Main Desktop)

Property	Value
IP	`192.168.20.27`
Hostname	`sam-4screen-desktop`
OS	NixOS
SSH	✅ `sam@192.168.20.27`
Tailscale	✅ `100.65.228.31` (sam-4screen-desktop-1)
Role	Daily driver. 4 monitors, 62GB RAM, Nvidia GPU. Zellij, Neovim, pi coding agent.
Key services	pi, pi-dashboard, Neovim, Zellij (with falcode + attention plugins), Home Manager managed
MCP tools	`codebase-memory-mcp` v0.9.0, `code-review-graph` v2.3.7 (per-project, installed via `uv tool install`)
Tunnels	`ssh -fNL 7437:127.0.0.1:7437 192.168.20.13` (engram — must re-establish after reboot)

Docker containers
Archon	AI project flow coordinator (`:3090`)
Supabase	Local dev auth + database (`kong :8001`, postgres `:5434`, studio, meta `:8080`, rest, auth)
knowledge-service	Custom Python API (`:8080`)
langgraph-service	LangGraph agent framework (`:8090`)
opencode-brain	OpenCode AI service (`:5000`)
airflow	Workflow orchestration

.13 — nixos-desktop (Server)

Property	Value
IP	`192.168.20.13`
Hostname	`nixos-desktop`
OS	NixOS
SSH	✅ `sam@192.168.20.13`
Tailscale	✅ `100.114.62.46` (nixos-desktop)
Role	Docker host, OmniRoute LLM proxy, always-on server. 15.5GB RAM.
Key services	Open WebUI v0.11.0 `:3000` (NixOS native, not Docker), Ollama `:11434` (qwen2.5-coder:7b)

Docker containers
OmniRoute	LLM proxy with combo routing (port 20128/20129). All pi LLM traffic routes through it. Combo `default-opencode-go-ds-flash` prioritises OpenCode-Go before falling through OpenRouter → DeepSeek direct → Google Gemini. See Pi Agent Extensions & Skills#OmniRoute — LLM Provider Router
Langfuse	LLM observability — traces, evals, cost tracking (port `:3001`, bumped from 3000 by Open WebUI)
worldmonitor	Geopolitical news dashboard (port 3002)
mosquitto	MQTT broker
pihole	DNS ad-blocking (primary)
nebula-sync	Pi-hole Gravity sync
headroom	Context compression proxy (port 8787)
engram	Journaling service (port 7437)
n8n	Workflow automation
voice_bridge + voice_whisper	MQTT audio bridge
piper_tts	Text-to-speech
Plus: pocketbase, doorbell_media, litellm, langfuse, airflow, trigger_dev, garage, t3_stack_react, sams-home-network

See Docker Containers for full container list.

.51 — sam-thinkpad (Laptop)

Property	Value
IP	`192.168.20.51`
Hostname	`sam-thinkpad`
OS	NixOS
SSH	✅ `sam@192.168.20.51`
Tailscale	✅ `100.88.161.102` (sam-thinkpad)
Role	Portable laptop. Used on-the-go and at home. pi, Neovim, Home Manager managed.
MCP tools	`codebase-memory-mcp` v0.9.0, `code-review-graph` v2.3.7 (installed via `nix-shell -p uv`)

Proxmox — Hypervisor

Property	Value
URL	`https://proxmox.home.lab`
Role	Hypervisor hosting `.35` (Caddy/Ubuntu) and Home Assistant as VMs

Home Assistant

Property	Value
Role	Home automation VM on Proxmox. Smart home control, automations, dashboards.

Routers

.35 — caddy-server (Reverse Proxy)

Property	Value
IP	`192.168.20.35`
Hostname	`caddy-server`
OS	Ubuntu Server
SSH	✅ `sam@192.168.20.35`
Tailscale	Not installed
Role	Caddy reverse proxy. Runs ~50 Docker containers (apps, dashboards, media, monitoring).

Proxied domains:

Domain	Proxied to
`omniroute.lab.audasmedia.com.au`	`.13:20129`
`omniroute.home.lab`	`.13:20129`
`worldmonitor.lab.audasmedia.com.au`	`.13:3002`
`worldmonitor.home.lab`	`.13:3002`

See Docker Containers for full container list on .35.

.150 — Phone (Android)

Property	Value
IP	`192.168.20.150` (static)
Device	Android phone
SSH	✅ Termux → `ssh` from/to other machines (port 8022, user: `uO_a499`)
Tailscale	✅ `100.101.49.17` (google-pixel-8a)
Role	Mobile access. Termux for SSH, Tailscale for remote, NTFY for notifications.

SSH Access Matrix

From ↓ / To →	.27 desktop	.13 server	.51 laptop	.35 caddy	.150 phone
.27 desktop	—	`sam@192.168.20.13`	`sam@192.168.20.51`	`sam@192.168.20.35`	`uO_a499@192.168.20.150:8022`
.13 server	`sam@192.168.20.27`	—	`sam@192.168.20.51`	`sam@192.168.20.35`	`uO_a499@192.168.20.150:8022`
.51 laptop	`sam@192.168.20.27`	`sam@192.168.20.13`	—	`sam@192.168.20.35`	`uO_a499@192.168.20.150:8022`
.150 phone	`sam@192.168.20.27`	`sam@192.168.20.13`	`sam@192.168.20.51`	`sam@192.168.20.35`	— (Termux local)

SSH config shortcut (~/.ssh/config):

Host phone
    HostName 192.168.20.150
    Port 8022
    User uO_a499

(Added to .27 and .51. .13 needs home.nix update — ~/.ssh/config is a Nix store symlink.)

Key Apps & Ports

Port	Service	Machine
`22`	SSH	All
`53`	DNS (Pi-hole)	.13, .35
`80/443`	Caddy reverse proxy	.35
`1883`	MQTT (Mosquitto)	.13
`3002`	worldmonitor	.13
`8022`	SSH (Termux)	.150 phone
`20129`	OmniRoute API	.13
`20128`	OmniRoute dashboard	.13
`7437`	engram	.13
`8787`	Headroom proxy	.13
`8079`	Netcom Router admin	Router (192.168.20.1)
`254`	Secondary Router admin	Router (192.168.20.1)
`3000`	Open WebUI	.13
`3001`	Langfuse	.13
`3090`	Archon	.27
`8001`	Supabase Kong	.27
`8001`	ai-resume-backend	.13
`8080`	knowledge-service	.27
`8090`	langgraph-service	.27
`5000`	opencode-brain	.27
`1780`	Snapcast (audio control)	.13
`11434`	Ollama (qwen2.5-coder:7b)	.13
`8765`	python3 (unidentified)	.27

Web Apps by Machine

.27 — sam-4screen-desktop (Docker host)

App	URL	Notes
Archon	`http://192.168.20.27:3090/chat`	AI project flow coordinator
Supabase Studio	`http://192.168.20.27:8001/project/default`	Local dev auth + database GUI
knowledge-service	`http://192.168.20.27:8080`	Custom Python API
langgraph-service	`http://192.168.20.27:8090`	LangGraph agent framework
opencode-brain	`http://192.168.20.27:5000`	OpenCode AI endpoint
knowledge-service	`http://192.168.20.27:8080`	Custom Python API
langgraph-service	`http://192.168.20.27:8090`	LangGraph agent framework
opencode-brain	`http://192.168.20.27:5000`	OpenCode AI endpoint

.13 — nixos-desktop (Docker host)

App	URL	Notes
Open WebUI	`http://192.168.20.13:3000`	Chat UI for LLMs — connect to OmniRoute at `http://192.168.20.13:20129/v1`
Snapcast	`http://192.168.20.13:1780/`	Multi-room audio control — needs Caddy DNS
Langfuse	`http://192.168.20.13:3001/auth/sign-in`	LLM observability (traces, evals, cost)
ai-resume-backend	`http://192.168.20.13:8001`	Resume AI backend (Docker)

.35 — caddy-server (Reverse Proxy)

App	URL	Notes
OmniRoute dashboard	`http://omniroute.home.lab`	LLM routing proxy GUI
OmniRoute API	`http://omniroute.lab.audasmedia.com.au`	Public LLM API endpoint

Proxmox

App	URL	Notes
Proxmox VE	`https://proxmox.home.lab`	Hypervisor — hosts .35 VM and Home Assistant VM
Home Assistant	(VM on Proxmox)	Home automation

Detail	Value
Version	v0.10.0 (pre-encryption, from GitHub releases)
Binary	`~/.local/bin/lan-mouse` (same binary on all three)
Service	`~/.config/systemd/user/lan-mouse.service` (enabled, auto-starts)
Config	`~/.config/lan-mouse/config.toml`
Port	UDP 4242
Encryption	None. v0.11.0 DTLS is broken — `Alert is Fatal or Close Notify` even on identical binaries.

Layout: .13 ← .27 → .51

.27: [left] ips = ["192.168.20.13", "192.168.20.46"] .46 is .13's Wi-Fi — required.
.27: [right] ips = ["192.168.20.51"]
.13: [right] ips = ["192.168.20.27"]
.51: [left] ips = ["192.168.20.27"]

Startup flags:

.27/.51: --daemon --capture-backend layer-shell
.13: --daemon --emulation-backend libei (KDE), uses wrapper script for NixOS libs

Release key: Press ASDF together to free trapped mouse back to .27.

⚠️ Gotchas:

Never use hostnames — Tailscale resolves to virtual IPs. Raw IPs only.
v0.11.0 does NOT work — DTLS broken everywhere.
.13 needs both IPs (wired .13 + Wi-Fi .46) in other machines' client list.
v0.10.0 limitation: Modifier keys (Super/Alt/Ctrl) not forwarded on wlroots. Basic typing/mouse works.
KDE (.13): Accept input emulation permission dialog on first run.

Tailscale (Tailnet)

Machine	Tailscale Name	Tailscale IP	Status
.27 desktop	sam-4screen-desktop-1	`100.65.228.31`	✅ Active
.13 server	nixos-desktop	`100.114.62.46`	✅ Active
.51 laptop	sam-thinkpad	`100.88.161.102`	✅ Active
.150 phone	google-pixel-8a	`100.101.49.17`	⚠️ Offline (last seen 1d ago)
.35 caddy	—	—	❌ Not installed

Account: samuelrolfe@gmail.com

DNS

Server	IP	Role
Pi-hole (primary)	`192.168.20.13`	DNS ad-blocking, local DNS for `.home.lab` domains
Pi-hole (secondary)	`192.168.20.35`	DNS ad-blocking, failover

Local domains needing DNS records

Domain	Target	Status
`omniroute.home.lab`	`.13:20128`	✅ Created
`omniroute.lab.audasmedia.com.au`	`.35`→`.13:20129`	✅ Caddy proxied
`worldmonitor.home.lab`	`.13:3002`	❌ Needs Pi-hole record
`worldmonitor.lab.audasmedia.com.au`	`.35`→`.13:3002`	❌ Needs DNS + Caddy done

11 KiB Raw Blame History

Home Network Map

Overview

Machines

.27 — sam-4screen-desktop (Main Desktop)

.13 — nixos-desktop (Server)

.51 — sam-thinkpad (Laptop)

Proxmox — Hypervisor

Home Assistant

Routers

.35 — caddy-server (Reverse Proxy)

.150 — Phone (Android)

SSH Access Matrix

Key Apps & Ports

Web Apps by Machine

.27 — sam-4screen-desktop (Docker host)

.13 — nixos-desktop (Docker host)

.35 — caddy-server (Reverse Proxy)

Proxmox

lan-mouse — Cross-Machine Mouse/Keyboard Sharing

Tailscale (Tailnet)

DNS

Local domains needing DNS records

11 KiB

Raw Blame History