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Weekly Notes 2025.35

justinvollmer.com

This week turned out to be an interesting mix of holiday productivity, server upgrades, good food, and diving deeper into some AI tools (a phrase I never thought I’d write). Since Monday was Labor Day here in the US, I had the day off, and spent it doing some small personal projects around the house, plus working on another work-related project that I’ve not had time for in the office (see the next point - and yes, I know it was a holiday, but it was a project that I both needed to spend time with and that I was enjoying experimenting on). Nothing too exciting, but it felt good to catch up on things I’d been putting off. While I’m not going to go into detail on the work project, I did find it as an interesting excuse to attempt some “vibe coding” on a little one-off Java app to manipulate Excel files (reformatting columns, adding new data fields, combining data from other files into a final export, etc). I got the first part working with Apache POI, though I still need to finish the combination logic. I do appreciate how quickly I was able to get to a functional solution, and the code is readable/modifiable, but I’m not entirely sure how comfortable I am with the overall vibe-coding concept. It still feels potentially perilous to me.

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