2022-01-15

BEAMitude: What if GenServer.call times out?

In this article I deep dive into a simple question: what happens with a client mailbox when GenServer call times out (and client traps the exit). Spoiler alert: what Erlang/OTP version do you run?

2022-01-09

Getting Erlang's observer working on Alpine Linux

A quick how to guide to get Erlang's observer correctly running on Alpine Linux via ssh X11 forwarding.

2021-12-18

Rethinking number formatting

How does one design API for number formatting in an understandable way? Because sprintf() isn't it.

2021-12-10

How to call renameat2 syscall in Ruby

Short post about the fascinating journey to discover how to call renameat2 syscall in Ruby in a somewhat portable way... and why one might want to do such a thing.

2021-11-23

Controlling fan speed the right way

I'm exploring some of the ways to control fan speed on Linux, notably including the (IMO) right one.