Configuration

Everything Heed can be told lives in one file, ~/.config/heed/config.toml (or $XDG_CONFIG_HOME/heed/config.toml). Heed writes it with comments the first time it opens, showing every key with its default.

Saving applies it. Heed watches the file; there is nothing to reload.
Mistakes never take the rest down. A value that does not fit is reported in the status bar, and its default kept. A syntax error keeps the last good config in use.
Settings edits the same file (⌘,), keeping your comments, for everything but key bindings.

A config problem reported in the status bar

Settings: the Settings window, section by section.
config.toml reference: every key and its default.
Finding git and gh: how Heed finds the tools it runs.