sneak 402c0797d5 Initial implementation of hdmistat - Linux framebuffer system stats display

Features:
- Beautiful system statistics display using IBM Plex Mono font
- Direct framebuffer rendering without X11/Wayland
- Multiple screens with automatic carousel rotation
- Real-time system monitoring (CPU, memory, disk, network, processes)
- Systemd service integration with install command
- Clean architecture using uber/fx dependency injection

Architecture:
- Cobra CLI with daemon, install, status, and info commands
- Modular design with separate packages for display, rendering, and stats
- Font embedding for zero runtime dependencies
- Layout API for clean text rendering
- Support for multiple screen types (overview, top CPU, top memory)

Technical details:
- Uses gopsutil for cross-platform system stats collection
- Direct Linux framebuffer access via memory mapping
- Anti-aliased text rendering with freetype
- Configurable screen rotation and update intervals
- Structured logging with slog
- Comprehensive test coverage and linting setup

This initial version provides a solid foundation for displaying rich
system information on resource-constrained devices like Raspberry Pis.

2025-07-23 12:55:42 +02:00

2.2 KiB

Raw Blame History

hdmistat

A beautiful system statistics display daemon for Linux framebuffers. Perfect for Raspberry Pis and other headless systems.

Features

🖥️ Direct framebuffer rendering (no X11/Wayland required)
📊 Real-time system statistics (CPU, memory, disk, network)
🎨 Beautiful typography using IBM Plex Mono
🔄 Configurable screen carousel
🚀 Lightweight and efficient
🔧 Easy systemd integration

Installation

go install git.eeqj.de/sneak/hdmistat/cmd/hdmistat@latest
sudo hdmistat install

Usage

Run as daemon

sudo hdmistat daemon

Install systemd service

sudo hdmistat install

Check status

hdmistat status

Display system info

hdmistat info

Configuration

Create /etc/hdmistat/config.yaml:

framebuffer: /dev/fb0
rotation_interval: 10s
screens:
  - overview
  - top_cpu
  - top_memory
  - network_detail

Building from Source

git clone https://git.eeqj.de/sneak/hdmistat
cd hdmistat
make build

Requirements

Linux with framebuffer support
Go 1.21+
Root access for framebuffer device

License

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

2.2 KiB Raw Blame History