For now, I use the 1.3.1 release of sleek because it has more features than the 2.0.0-dev8 pre-release build that solved my problem. As a temporary workaround, I create my todo.txt files as filename.todotxt in my obsidian vaults and manually hardlink those files to filename.txt in a todo_txt directory somewhere else on each machine I use sleek on. It works totally fine, it’s just a bit janky. I’ll be happy when sleek 2.0 comes out and I can get rid of the hardlinks.