Notes from the Windows corner

On 16 December 2000, a young @dra1 stepped out on to the stage of St Martin-in-the-Fields making what would be the first of many performances of Johann Sebastian Bach’s great Mass in B minor.

The spring-cleaning continues!

As we settle into 2026, I have been doing a little early spring-cleaning.

As I was very happy to announce on Discuss on 12 December, OCaml is Relocatable!

Someone was kind enough a few weeks ago to comment on Hacker News that “Opam on Windows is a masterpiece of engineering”.

I spent last week at ICFP 2025.

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.

There was a flurry of activity on ocaml-multicore/ocaml-uring this month leading to a release (ocaml/opam-repository#28604). ocaml-uring provides bindings to the Linux’s io_uring, which allows batching various syscalls to the kernel for it to execute out-…

Continuing the previous theme of dabbling with matters agentic.

Over the summer, Lucas Ma has been investigating ideas surrounding using effects in the OCaml compiler itself.