How would they do that if they don't use git for version control? Does GitHub allow other forms of version control other than git?
replySQLite does it despite using Fossil - their mirror is at https://github.com/sqlite/sqlite
replyGit is so established now that it's sensible for alternative VCS to have a mode where they can imitate the Git protocol - or seven without that you can still checkout the latest version of your repo and git push that on a periodic basis.
Similarly, CUE uses Gerrit and has two way sync. If you are building a VCS today, git interop is a must.
replypijul clone https://nest.pijul.org/pijul/pijul
replypijul log --hash-only > all_changes.txt
pijul unrecord --all
git init
``` for HASH in $(cat all_changes.txt); do pijul apply "$HASH" pijul reset # sync working copy to channel state git add -A git commit -m "pijul change: $HASH" done ```
git remote add origin git@github.com:you/pijul-mirror.git git push -u origin main