Open Source
House Planner - Self-Hosted Floor Plans, 3D Preview, Utilities, and Bill of Materials
House Planner is a self-hosted house planning app with 2D floor plans, 3D preview, maps, utilities, estimates, and JSON …
SketchForge - Self-Hosted Browser CAD for Local-First 3D Models
SketchForge is a self-hostable browser CAD editor for local-first 3D modeling, STL import, booleans, and model export.
OrcaSlicer
Open-source desktop slicer for FDM 3D printing, calibration, profiles, G-code generation, and network printer workflows.
OpenDroneMap ODM
Command-line photogrammetry toolkit for generating orthomosaics, point clouds, DEMs, textured models, and geospatial …
Speeduino - Open Source ECU Firmware
A source-first look at Speeduino, the open source Arduino-based engine management firmware for DIY ECU projects, …
BLHeli - Open ESC Firmware for Brushless Motors
A source-first look at BLHeli, BLHeli_S, and BLHeli_32 documentation for brushless ESC firmware, motor control, DShot, …
ArduPilot - Open Source Autopilot Firmware You Can Simulate Locally
A practical technical look at ArduPilot: the open-source autopilot stack for aircraft, rovers, boats, submarines, …
beso - Topology Optimization for CalculiX FEM
beso is an LGPLv3 Python toolkit for topology optimization with the CalculiX finite element solver, FreeCAD workflows, …
OpenCode - Open Source AI Coding Agent CLI
OpenCode is an open-source AI coding agent with a terminal CLI, local server mode, web UI, desktop app, agents, provider …
Grida - Open Source Canvas and Rendering Engine
Grida is an open-source canvas editor, rendering engine, and visual app platform built with Rust, Skia, WASM, React, and …