After a firewall change our remote EJB3 calls started hanging mysteriously. The root cause? Silent TCP connection drops. To fix this we needed to enable and tune TCP keepalives at both the OS and Payara levels.

Avoid issues with missing Python dependencies like passlib by generating Traefik user files in Ansible using templating and password_hash. This lightweight alternative works seamlessly in restricted environments like TrueNAS.

Can integrated GPUs accelerate local LLMs? I explored running self-hosted models like Ollama with ROCm on an AMD 5600G-based homelab, but ran into kernel and memory allocation limitations. Here’s what I found and where things stand today.

What to do when pip can’t install a library from a Git source due to flat layout issues—and how Poetry, setuptools, and PEP 621 come into play.

Solving 4 years of technical debt and adding containerisation to the project.