Julio Merino
@jmmv
Operating systems, build systems, and programming languages. Mostly Unix, Bazel, and Rust. Author of Blog System/5. Creator of EndBASIC, and more.
The kid has been asking me to visit her “shop” for a while so I had to accept…
Nice. OctoPrint worked without issues on FreeBSD so the 3D printer can now live in the garage next to my server.
All I wanted to do was to write about a cool hack I did at work... and that pushed me into a long 4-part series on Bazel action execution. Let's start covering action (non-)determinism. jmmv.dev/2025/07/bazel-…
This going viral (I know 1.4K favorites isn't much, but it is for my usual post!) is going to make me write an article, isn't it?
This was 1993. Despite all of the problems with VB ("not a real language", the runtime DLLs, etc.), it was So Much Fun™️ to create apps this way.
This was 1993. Despite all of the problems with VB ("not a real language", the runtime DLLs, etc.), it was So Much Fun™️ to create apps this way.
When my father upgraded us from a 386 DX 40 to a Pentium 60 in ~1994, _this_ is the kind of speed-up I imagined we'd get when starting Windows 3.11. The reality was much more disappointing. (What you see is DOSBox set to cycles=max on my laptop.)
All of yesterday and part of today to write a Bazel rule that trims the classpath to cut the runtime of tests by a few seconds. Tried Cursor's help but it just messed things up at every step. I guess this must be quite novel! (And yes, I sent a BazelCon talk proposal 😎)
Happy Friday! The instructions to build your very own EndBASIC microcomputer (aka the EndBOX), including links to components AND the very first public disk images 😱, are now available. Have fun! endbasic.dev/2025/07/endbox…
Started writing an article to explain a "cool" trick I recently implemented at work to deal with glibc version incompatibilities in a Bazel build... and I'm now 4 posts deep into a series. Send help.
Instructions for the DIY kit ready and the very first release builds are in the oven. Interested in early, privileged access? coff.ee/jmmv !
I was thinking exactly the same thing, now that Strava has opted me into a 30-day trial of their paid product and I get to see the AI reports.
The unbearable obviousness of AI fitness summaries theverge.com/fitness-tracke…