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One year at Ahrefs

I started working at Ahrefs one year ago. When I applied I had heard of them from OCaml’s discuss amongst other OCaml community spaces and…

06 Oct 2025

Ahrefs

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Attempting overlayfs with macFuse

It would be great if overlayFS or unionFS worked on macOS! Initially, I attempted to use DYLD_INTERPOSE, but I wasn’t able to intercept enough system calls to get it to work. However, macFuse provides a way to implement our own userspace file systems. Patrick previously wrote obuilder-fs, which implemented a per-user filesystem redirection.

06 Oct 2025

Marc Elvers

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Generating a corpus of Hazel programs from ill-typed OCaml programs

The Workshop on Type-Driven Development (TyDe) aims to show how static type information may be used effectively in the development of computer programs. Co-located with ICFP, this workshop brings together leading researchers and practitioners who are using or exploring types as a means of program development.

01 Oct 2025

Anil Madhavapeddy's Blog

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Three steps for OCaml to crest the AI humps

The OCaml Users and Developers Workshop brings together industrial users of OCaml with academics and hackers who are working on extending the language, type system, and tools.

01 Oct 2025

Anil Madhavapeddy's Blog

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File descriptors as integers considered harmful

Continuing the previous foray into file descriptors, and trying to remove Obj.magic both from ocaml-uring’s code itself, and from the recommended way for using it.

01 Oct 2025

David Allsopp's Blog

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Hacking OCaml

This talk breaks down a CTF puzzle Corwin de Zahr designed a few years back that involves finding problems and vulnerabilities within the OCaml runtime. Read the full transcript here: https://www.janestreet.com/tech-talks/hacking-ocaml/

30 Sep 2025

Jane Street - Tech Talks

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