logos-tutorial

Tutorial series and reference documentation for building Logos modules.

Start Here

New to Logos? Start with the developer guide -- it walks through creating, building, packaging, and running your first module:

• Logos Developer Guide

Next Tutorials

Step-by-step tutorials that build on each other. Each creates a working module you can run.

• Part 1: Wrapping a C Library -- build calc_module, a core module that wraps a C library (libcalc). Covers external library configuration, CMake integration, building, inspecting with lm, testing with logoscore, and packaging with nix-bundle-lgx.

• Part 2: Building a QML UI App -- build calc_ui, a QML-only UI plugin that calls calc_module through the logos.callModule() bridge. No compilation needed.

• Part 3: Building a C++ UI Module -- build calc_ui_cpp, a native C++ Qt widget plugin with typed backend calls to calc_module via LogosAPI*.

Example Modules

Working module source code used by the tutorials:

Directory	Module	Type	Tutorial
logos-calc-module/	calc_module	Core (wraps libcalc)	Part 1
logos-calc-ui/	calc_ui	QML UI	Part 2
logos-calc-cpp-ui/	calc_ui_cpp	C++ UI	Part 3