@Explore_Fediverse@gup.pe のえすきー（Misskey）からgup.peに投稿できるようになりましたよ。『Misskeyから始めるFediverse探訪』を可能にするには、こういう地道な互換性の確保が重要だよね、と思う今日この頃です。

@liaizon@social.wake.st "のえすきー : noeskey" is a Misskey instance that I manage.

Misskey could not connect to some ActivityPub servers because it used a different public key format than Mastodon and others. The key format has changed with the latest commit. Also, it does not currently support Group actors.

Noeskey has changed it to accept Group actors. These changes improve compatibility with gup.pe and some relay servers.

@liaizon@social.wake.st For now. The key format has already been changed for Meiskey(めいすきー), an instance of the Misskey developer. For group actors, we will make a pull request later.

Meiskey is a major fork of Misskey, with feedback to improve Misskey and various enhancements.
https://misskey.m544.net/