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Quite often, you install a new package from opam and are keen to jump right in and want a tailored example for your use case. This happened to me during Day 12 of Advent of Code.
Building interactive OCaml tutorials that compile to JavaScript, using agents to generate executable documentation that teaches protocols like JSON Pointer while you code review.
Vibespiling JustHTML from Python to pure OCaml, achieving 100% pass rate on the browser html5lib test suite using agentic workflows.
Vibe coding an OCaml library for the Karakeep bookmarking service by giving an agent a live API key and letting it debug jsont codecs against the real service.
Agentically synthesising a batteries-included OCaml HTTP client by gathering recommendations from fifty open-source implementations across JavaScript, Python, Java, Rust, Swift, Haskell, Go, C++, PHP and shell.
With the start of Advent comes a new set of Advent of Code problems. My code is available at mtelvers/aoc2025.
Building a TCP/TLS connection pooling library for Eio with DNS-based load balancing, stacked error handling, and self-contained HTML visualisations for stress test results.
