I vendor in log.c all the time for C projects! I had no idea the author was relatively prolific. Would really recommend checking out log.c, it's really easy to hack in what you need to.
Speaking of, I personally use https://zolk3ri.name/cgit/libzklog/about/ because I like the way it looks. :D I used his simple logging library in Go, so might as well.
I used "lite" (text editor in Lua) which has been mentioned under this submission. It is cool, too.
