sam-4screen-desktop 2026-8-1:0:44:15

300 areas/360 Dev-Ops Network Computers/Home Network Map Overview.md

@@ -144,6 +144,31 @@ Host phone
 
 ---
 
+## lan-mouse — Cross-Machine Mouse/Keyboard Sharing
+
+| Detail | Value |
+|--------|-------|
+| **Version** | v0.10.0 (pre-encryption, from [GitHub releases](https://github.com/feschber/lan-mouse/releases/tag/v0.10.0)) |
+| **Binary** | `~/.local/bin/lan-mouse` (same binary on all three) |
+| **Service** | `~/.config/systemd/user/lan-mouse.service` (`systemctl --user start lan-mouse`) |
+| **Config** | `~/.config/lan-mouse/config.toml` |
+| **Port** | UDP 4242 |
+| **Encryption** | None (plain UDP). v0.11.0 DTLS is broken between different NixOS builds. |
+
+**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:** `--daemon --capture-backend layer-shell`. On .13 also `--emulation-backend libei` (KDE).
+
+**⚠️ Gotchas:**
+- **Never use hostnames** — Tailscale resolves them to virtual IPs. Raw IPs only.
+- **v0.11.0 will NOT work** — DTLS `Alert is Fatal or Close Notify` between different NixOS builds.
+- **.13 needs both IPs** (wired `.13` + Wi-Fi `.46`) in every other machine's client list.
+- **KDE (.13):** Accept the input emulation permission dialog on first run.
+
 ## Tailscale (Tailnet)
 
 | Machine | Status | Tailscale IP |