I have been using the Fediverse more and more and decided I would like to make this blog part of it. Why? Well, if I am honest it is “because I can” so I went down the rabbit hole of how to make that happen.

It turns out that what I actually wanted was for this site to be a fediverse account in its own right. It would be something people on Mastodon can follow, reply to and boost directly, with the real post living here the whole time. That is a different problem to solve, and the tool for it is Bridgy Fed.

For a while I have been looking for a good self-hosted solution for recording my gym sessions. I have a good solution for tracking my cardio sessions (cycling and running mainly) in Endurain, but never for strength training. I have tried a few:

• wger - a good solution, but the UI is a bit dated and it is also geared towards managing a gym rather than a single user.
• Wingfit - also good, but I just did not click with it. Shame, because the developer is from Brittany, which is my adopted home.
• A multitude of different open source Android apps. These all had UX issues and no syncing, so kind of sucked for me.

As a result, I stayed on Strong for much longer than I would have liked.

I have been using Opencode to work on a couple of ESP32 projects that are of a more “Maker” nature. At some point I realised that I also needed a case and decided to set Opencode loose on it too.

The workflow for this is simple, but awful:

• describe the case in words
• Opencode (using Big Pickle because FREE) creates an OpenSCAD model
• Render the OpenSCAD model
• Wonder what the hell Opencode was thinking
• GOTO 10 and the cycle continues ad nauseam

What you need is some way for Opencode to verify what it has done and iterate.

I use Opencode with oh-my-openagent which, amongst other things, gives you sub-agents. One of those sub-agents is the “multimodal-looker” which can look at images and provide feedback. I thought I could use this to create a feedback loop for Opencode to verify its own work.

The idea is simple:

• I describe the case in words
• Opencode creates an OpenSCAD model and renders it
• The multimodal-looker “looks” at the rendered image and provides feedback.
• Opencode uses the feedback to iterate on the design

This is great in theory, but falls apart in practice because Big Pickle does not support visual analysis. So, I needed to do two things:

• route visual analysis to another model
• decide which model to use

I decided to use gemma4:e4b because it has the feature I need and is not only free, but I can run it on my own hardware with reasonable performance. The performance isn’t interactive-speed, but it is good enough that I can set the agent working while I go away and have a meal or chat with my wife for a bit.