The creator of the tool is the admin of lemmings.world, and the tool is hosted at schedule.lemmings.world. So, if you have a user at lemmings.world, you can use this tool without having to trust a third-party.
If you don’t have a user there, you can create a user in that instance for the purpose of creating scheduled posts. Removing the need to trust two parties rather than one.
And, of course, since the source code is open anyone else can attach this to their own instance! Pretty cool.
Finally. Someone noticed 🥹