Things I've built, mostly because a problem annoyed me enough.
Ad analytics & automation
Advertising analytics, automation and optimization for Meta Ads and Google Ads. A Go API and a background worker pull campaigns and metrics every hour, with organisations, role-based access and an audit log built in from the start.
Agent workspace
A local-first runtime around AI coding agents. Move between Claude Code, Codex and local models without losing project state, memory or decisions, because the project owns the knowledge, not the chat session. Ships as a single binary.
Personal finance OS
Turns bank, card and broker statements into one exact ledger that you, and your AI over MCP, can explore. The maths is deterministic; AI only explains it. Your data stays in your own Postgres.
Postgres performance
Tells you why Postgres got slow at 14:32: it spots plan flips, lock pile-ups and missing indexes, suggests the fix, then checks it worked. Self-hosted and read-only.
NLP
Part-of-speech tagging with a Decision Tree classifier trained on a tagged NLTK corpus, labelling each word in a sentence with its grammatical role.