altSourceConverter is kinda replaced by UniversalRepoFmt. i recommend using that instead if you're making your own source
convert "esign-style" repos to AltSource format, tested on the apptesters repo, eeveespotify repo, and my repo!
this can come in helpful in the case you want to explore the repo with altsource-viewer, or just make a repo compatible with altstore (hopefully...)
install nim, then clone this repo, and build with:
nimble build -d:danger -d:strip --opt:speed
save a repo's json data to a file, then specify it:
./altSourceConverter $PATH_TO_REPO_FILE
it will save the new repo data to the same directory as the file but with an altsource.json file extension.