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Learning OCaml: Working with Records

Records are one of those things that look almost identical across ML-family languages, so I didn’t expect many surprises when I started using them in OCaml. For the most part I was right – but there were a few things worth noting, especially if you’re coming from a language where records/structs are mutable by default.

01 Mar 2026

Bozhidar Batsov

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.plan-26-09: Browser TESSERA, package management and Docker in the CACM

Got TESSERA working in Zarr and the browser, and a preprint of package management a la carte pushed out

01 Mar 2026

Anil Madhavapeddy's Blog

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Building Emacs Major Modes with Tree-sitter: Lessons Learned

Over the past year I’ve been spending a lot of time building Tree-sitter-powered major modes for Emacs – clojure-ts-mode (as co-maintainer), neocaml (from scratch), and asciidoc-mode (also from scratch). Between the three projects I’ve accumulated enough knowledge (and battle scars) to write about the experience. This post distills the key lessons for anyone thinking about writing a Tree-sitter-based major mode, or curious about what it’s actually like.

27 Feb 2026

Bozhidar Batsov

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Building Emacs Major Modes with TreeSitter: Lessons Learned

Over the past year I’ve been spending a lot of time building TreeSitter-powered major modes for Emacs – clojure-ts-mode (as co-maintainer), neocaml (from scratch), and asciidoc-mode (also from scratch). Between the three projects I’ve accumulated enough battle scars to write about the experience. This post distills the key lessons for anyone thinking about writing a TreeSitter-based major mode, or curious about what it’s actually like.

27 Feb 2026

Bozhidar Batsov

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Is Running Untrusted Code on a Satellite a Good Idea?

The problem statement: no isolation, no standard packaging, no OTA updates. Three missing pieces for multi-tenant satellite payloads.

25 Feb 2026

Thomas Gazagnaire

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Setting up Emacs for OCaml Development: Neocaml Edition

A few years ago I wrote about setting up Emacs for OCaml development. Back then the recommended stack was tuareg-mode + merlin-mode, with Merlin providing the bulk of the IDE experience. A lot has changed since then – the OCaml tooling has evolved considerably, and I’ve been working on some new tools myself. Time for an update.

24 Feb 2026

Bozhidar Batsov

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Weeknotes weeks 7-8

24 Feb 2026

Jon Ludlam's Blog at recoil.org

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A Decade of Docker Containers on the CACM cover!

Our CACM cover article reflects on a decade of Docker, from the early days of hacking Docker for Mac on a French farm to today's AI-driven sandboxing, covering the technical origins, cross-platform challenges, and the vibrant open-source community that made it all possible.

24 Feb 2026

Anil Madhavapeddy's Blog

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From ASPLOS to Orbit: Unikernels Twelve Years Later

The ASPLOS unikernels paper won its test-of-time award in 2025. Twelve years later, where does the thesis hold?

23 Feb 2026

Thomas Gazagnaire

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