Today I moved my Next.js site from using eslint and prettier to Biome. I did this while upgrading from Next.js 14 to 15, which moves eslint from 8.x to 9. 9.x encourages the use of its new flat configuration file and honestly I am just not a fan. Rather than kicking that can down the road with the environment variable to use the old non-flat format, I figured I would just bite the bullet and move to Biome. With Biome I was able to sort it all out with three commands and a tweak to the biome.json file (since I wanted to use double quotes instead of singles). Seems to be working out so far! Had an idea to implement a rolling list of what I develop (outside of work) for each day. Implemented all of that with some refactoring of my utilities for fetching content, rendering blog posts, etc. Hopefully this will complement my Dev Diary posts, of which I need to probably restructure slightly as they have so far been catered to Koto than anything else and I'd like to write up longer form content on other development topics.