Welcome to Bixoto's Tech Blog

This is bixoto's tech blog. Here you will find useful tips, tutorials & interesting information about tech related stuff (Python, PHP, JavaScript, Dokku, etc).

GLM-5.3 vs Kimi K3: 753B vs 2.8T. The Older Weights Just Won on Points.

Zhipu’s post-training special vs Moonshot’s trillion-parameter giant — the first real head-to-head of China’s two open-weight flagships, with receipts and asterisks. GLM-5.3 launched on August 14, 2026, the day I’m writing this. Its numbers are vendor-reported (v) and hours old. Kimi K3’s numbers are a mix of vendor-reported (v) and independently verified (i) figures, after … Read more

Debugging iOS Safari from Linux

While implementing Apple Pay on the Bixoto checkout, a collegue of mine was struggling with strange errors on iOS, but couldn’t properly debug it from their Linux computer. Thankfully, it’s possible to get the debugger to work on Linux, although the experience is not exactly smooth. The commands used in this guide are for Ubuntu … Read more

Upgrade Mattermost Enterprise Edition to Team Edition

Mattermost was created as a free and open-source alternative to Slack, but over the years they also added an “Enterprise” paid version, with more features. It can be a bit confusing, because the free and open-source version is called “Team Edition”, but the Enterprise one also has a free plan. Mattermost makes it very easy … Read more

Migrating commands from Poetry to uv

At Bixoto we used to use Poetry to manage all our Python projects, but we recently started to migrate to uv, which is a lot faster. However, the commands of each tool don’t always match, which can cause some confusion. In this post we provide a partial cheatsheet of the most common commands and their … Read more

Mooving away from Coolify

At Bixoto we have a lot of apps deployed using Dokku and we are very happy with it. However, for some complex apps we would like to be able to use docker-compose.yml files, but Dokku doesn’t support them. Back in February, we deployed a Coolify instance on a new server. Coolify looked like a good … Read more

An obscure intermitent SSH connection issue with Coolify

While setting up a self-hosted single-server Coolify installation to test it as an alternative to Dokku, I was struggling with a strange intermitent SSH connection issue: when saving the configuration of the server, I would sometimes get a success message, but most of the time the following error: I tried to change the server IP/domain … Read more