Marianposaceanu
marianposaceanu.com
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Personal blog of Marian Posăceanu, a multidisciplinary web developer writing about Ruby, Rails, backend systems, APIs, search, performance, developer tooling and the changing web.
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A path tracer through the translation stack: Quake II RTX on Apple M4
A reproducible field note for Quake II RTX with god rays on Apple M4 through CrossOver, experimental MoltenVK, and shader-emulated sampler reduction.
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PRs are dead, long live PRs?
Pull requests are an important part of programming culture. They serve multiple purposes and vary across teams, organisations and even technologies. In essence, they reflect how a team constantly evolves, both through its individual members and its code.
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Semantic search in Rails using sqlite-vec, Kamal and Docker
I've been reading a lot about search lately: kNN, BM25, RRF and related ideas, both within Elasticsearch and in isolation. With the advent of LLMs, especially open-weight models, plus modern hardware, it feels like a good time to approach some of this in
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Kamal, Rails deployments, and Rega turntables
Lately I've started to put my turntable back into working order. It's been disconnected from my main audio chain for about five years. The TT is a Rega RP3 path fill="#b30600" d="M0.48 10.38q-0.132 0.12-0.228 0.12h-0.060q-0.192-0.048-0.192-0.228 0...
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The analogue programmer in the land of LLMs
It's been a while since I've posted, for obvious reasons a lot has changed in the realm of programming. LLMs, "agentic" coding et al. I've started using them almost from day one, when they were pretty bad and they could barely generate some readable text
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