Local files
XDG_CONFIG_HOME, and TERMA_CONFIG_DIR replaces it entirely.
Profiles
A profile keeps a separate set of selections side by side — for example, two organizations you move between. Credentials are stored per profile, so switching profiles switches identity.--profile <name> on any command, or set TERMA_PROFILE, to use a profile for one command.
terma config is an advanced command: it works as documented but is not listed in terma --help.
Self-hosted deployments
Terma uses its production endpoints by default. For a self-hosted deployment, store endpoint overrides on a profile:terma config use <name> to keep one profile per deployment. terma status reports Endpoints: custom for a profile with overrides, so it never reads as a production one.