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Talks

Semantic Searching with RAG and Ruby

  • Dan Milne

Dan Milne

08 May 2025

Hey! I did a talk at Ruby Australia on how to build a Semantic Search system using Ruby.

I really enjoyed building this little demonstration toy. I first got a glimpse of how they work with Simon Willison's excellent video "Embeddings: What they are and why they matter"

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Proxying Distant HTTP Services for Latency wins

My Rails app, Booko, uses Meilisearch for text search - it's great. So easy to setup and use. Booko runs in Hetzner's Singapore location, but the Meilisearch instance is in Hetzner's Helsinki region on a physical host. They're hard to beat for
14 Sep 2025 2 min read

Nipsu

15 Aug 2025

Migrating PostgreSQL across the planet, with almost no downtime.

TL;DR: Using PostgreSQL logical replication and Tailscale VPN, I migrated 200GB of data from California to Sydney with seconds of downtime and no time pressure. The replica synchronized over several days while production ran normally.
07 Aug 2025 7 min read
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