These are projects I have made over the past few years, for a variety of reasons. Some are hobby projects, some are school projects, all have been made entirely by me.
Sapphire (Rust)
An optimizing compiler back-end (i.e. a code generator).
Gallium (C++, Python, LLVM, CMake)
A C-like programming language built ontop of LLVM.
Chip-8 (C++, SFML, CMake)
A complete Chip-8 emulator.
Calculus Review (TypeScript, React, TSX)
A math review site with configurable questions, scoring, math rendering via LaTeX, and a configurable question format for adding new questions.
libfrt (C++)
A utility library similar to the C++ standard library made for use in bare-metal environments