What I Build Now: Discovery on the Open Social Web

The Bitcoin articles on this site are my 2018 chapter. This is the current one.

If a search engine brought you here, it probably introduced me as a Bitcoin developer. The oldest articles on this site are from 2018, about Bitcoin and the Lightning Network, and for years they were my only public writing. Since then I have been building tools on the AT Protocol, the open network behind Bluesky.

The through-line was already there in 2018. Come for the Price, Stay for the Education was not really about Bitcoin. It was about failing to find people: I searched Hamburg and Berlin for an educated Bitcoin community and came home mostly empty-handed. The people existed. I had no good way to find them, and they had no good way to be found.

Why ATproto

The AT Protocol gives everyone a public, portable data repository under their own identity. I need no platform's permission to read the network, and my tools compete on quality instead of on owning your data. You can leave any of them at any moment and lose nothing. Independent tools can also share meaning: when my audio project records a listen, it writes the same record other scrobblers use, into your repository, not mine.

What I build

divepool reads what accounts actually write, posts, long-form documents, podcasts, and turns it into embeddings, the numeric representation of meaning behind modern search. Then it compares. That gives discovery without the right keywords: a feed of accounts near your interests, hopping from topic cluster to topic cluster, a compare page for any two accounts. The people I could not find in 2018 are exactly what it finds. I gave a short talk on the approach, Keywords vs Embeddings, at ATmosphereConf 2026.

PingArthur is uptime monitoring for a world where the first reader of your status page is often a language model. Machines poll and read it through a plain API; humans get the same truth. It watches divepool, and divepool watches it back.

ibla.sh brings the same idea to music and audio: ratings and listens as ATproto records you own, plus embeddings of the audio itself, so recommendations come from how a track sounds rather than from what a crowd clicked. It complements the scrobblers Rocksky and Teal.fm.

How I work

Alone, from Hamburg, in Go and PostgreSQL, these days mostly together with Claude Code. Text and audio over video, and every page should read well enough that a screen reader could just read it aloud. The stack stays small; the complexity belongs in the discovery, not the plumbing.

The open invitation

The 2018 article ended with a search for people. So does this one. divepool's biggest goal is finding one other person who wants to build it alongside me. If discovering the unseen on an open network grabs you, write me: jasper at raedisch.net, or @raedisch.net on Bluesky.

Created at 2026-08-09. raedisch.net