ashishps1 / awesome-system-design-resources

A curated list of free system design learning materials and interview preparation problems and concepts.

krahets / hello-algo

An open-source, animated, illustrated tutorial on data structures and algorithms with runnable code in many languages.

logisim-evolution / logisim-evolution

Educational Java application for designing, simulating, and timing-diagramming digital logic circuits, with VHDL and Verilog support.

Lucas0623z / NoteLite

Open-source desktop app that recognizes sheet music from PDFs or images into editable scores, then exports MusicXML/MIDI and offers guided practice.