Brimstone was my old indieweb software which I used to use to power the website at this domain. It was fun to hack on and learn indieweb stuff and served as a really fun tool to learn more about writing somewhat-good PHP in a powerful framework.
I stopped maintaining Brimstone when I changed the way that I like to write prose (i.e. moving to a text-editor with markdown files rather than writing in the web interface) and also when it became clear that maintaining it on a server was becoming tougher. My hosting provider upgraded the PHP installation which broke all the forms used to write posts, and in order to make it work again I’d need to upgrade the version of Symfony in order to make it play nicely with the newer version of PHP. This proved to be too involved for my personal circumstances at the time so I switched to a static site generator and haven’t looked back.