I made an Arch-Warlock prestige class and I wondered if anyone else has. it's kinda niche and I have hopes to make it usable with other invocation using classes. I don't want to step on anyone's toes though so I'llw ait til I ehar back before posting about it.
Just post it! There is no toe-stepping in homebrew.
If it's bad, then consider it practice.
If it's good, then be proud of it.