Probably best known for their port of SQLite: https://pkg.go.dev/modernc.org/sqlite
I once read drh note that no-one had ever bought any copies of TH3. I'm not sure what that does or doesn't say.
But I would hope this is using TH3 in the development pipeline!
If it's a direct port, the branch coverage should be constructively similar so as to be just as effective a test as for the C version.
Probably best known for their port of SQLite: https://pkg.go.dev/modernc.org/sqlite