Ivory's (Tapbots' Mastodon Client) supported URL scheme.

ivoryx.md

acct can be fully qualified @user@host or @user or blank for currently active user

Tabs

ivory://acct/home (or timeline)

ivory://acct/mentions

ivory://acct/lists

ivory://acct/favorites

ivory://acct/bookmarks

ivory://acct/statistics

ivory://acct/profile

ivory://acct/search

Modal callback_url= valid for all the below

ivory://acct/openURL?url=<url>

ivory://acct/status/status_id (from acct's instance)

ivory://acct/user_profile/user_acct

ivory://acct/post

ivory://acct/post/text

ivory://acct/post?text=<text>&in_reply_to_status_url=<url>