A plain text note manager and local search engine for Emacs, with a Deft derived interface, and Xapian based full-text search. Somewhat specialized for notes in the Org format. I rely on this application to keep curated and relevant knowledge at my fingertips.
A generator for static Racket vocabulary dictionaries, to be used for example for Emacs-based symbol completion with Company or Auto-Complete. It is customary in Scheme and Racket to use rather long and specific top-level identifier names, making quick completion quite useful.