seems like ok box to run git / vpn server on depending on bandwidth availible.

i run vps with debian (lazy, insecure...) with git and some other services behind it which i use for personal code backups etc.. if it's life long free, consider using it to mine some crypto currencies? if u dont have anything to do with it. it's slow going on cpu cycles but if it's free it's all profit so better than idle cpu cycles ;D