Your 'Systant. A system daemon on Linux that communicates via MQTT to get diagnostic info from, and send commands to, a Linux computer.
Written in Elixir because fuck you, and written mostly by Claude because fuck everything.
ryan
46e585ec92
- Move Nix package and module to nix/ directory for better organization - Remove old Nix files (systant.nix, systant-old.nix, etc.) - Remove debug script and systemd service file - Update config files for new Nix structure - Add CLAUDE.md with project documentation 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com> |
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| lib | ||
| nix | ||
| rel | ||
| test | ||
| .envrc | ||
| .formatter.exs | ||
| .gitignore | ||
| CLAUDE.md | ||
| flake.lock | ||
| flake.nix | ||
| mix.exs | ||
| mix.lock | ||
| README.md | ||
Systant
An Elixir application that runs as a systemd daemon to:
- Publish system stats to MQTT every 30 seconds
- Listen for commands over MQTT and log them to syslog
Configuration
Edit config/config.exs to configure MQTT connection:
config :systant, Systant.MqttClient,
host: "localhost",
port: 1883,
client_id: "systant",
username: nil,
password: nil,
stats_topic: "system/stats",
command_topic: "system/commands",
publish_interval: 30_000
Building
mix deps.get
mix compile
Running
# Development
mix run --no-halt
# Production release
MIX_ENV=prod mix release
_build/prod/rel/systant/bin/systant start
Systemd Installation
- Build production release
- Copy binary to
/usr/local/bin/ - Copy
systant.serviceto/etc/systemd/system/ - Enable and start:
sudo systemctl enable systant
sudo systemctl start systant
Features
- Publishes "Hello from systant" stats every 30 seconds to
system/statstopic - Listens on
system/commandstopic and logs received messages - Configurable MQTT connection settings
- Runs as systemd daemon with auto-restart
- Logs to system journal