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open-lakehouse is a small, complete lakehouse built only from open-source parts: object storage, an open table format, a catalog, Spark as the engine, a stream, a pipeline framework, an orchestrator and experiment tracking. It runs on Docker Compose

In September 2025 and again in March 2026, JetBrains' own Platform engineering team published two posts about a specific, recurring cause of IntelliJ IDE freezes: a background thread calling a blocking, non-cancellable read-lock API (ReadAction.compu

Because I just wanted to keep my TypeScript classes. I was not trying to build a CRDT framework. Honestly, I really, really wanted to avoid building one, and I guess you can see that in the API. I ended up creating Plexus ( https://plexus.here.build/

This week, two of the biggest names in AI shipped the same idea within days of each other. On September 15, TypeSafe launched Jev, the first "System One model": an AI that outputs typed decisions instead of text. On September 29, OpenAI answered at D

Once a coding agent can change the architecture, changing the rules that protect it becomes a different kind of operation. One of the less obvious problems I've run into with coding agents isn't that they make bad changes. It's that sometimes they ma

Some bugs only happen with one combination of API data, timing and local state. The failing run and a working run differ in dozens of ways, and figuring out which difference matters usually means commenting things out until something changes. Causali