Description: GNU Emacs is a popular, open source text editor and computing environment. It runs on most operating systems and provides extensibility through an Emacs Lisp interpreter.
Type: software
Pricing: Free
Description: RemNote is a free, open-source spaced repetition and note-taking app. It uses an interconnected web of notes to promote understanding and long-term memory retention. Key features include note linking, spaced repetition flashcards, knowledge graphs to visualize connections, and excellent mobile apps.
Type: software
Pricing: Open Source