The Git sync plugin allows syncing Insomnia collections with Git repositories.
Public environments are synced, and private environments are not. This allows sharing the structure of a configuration (e.g. Variable substitution in environments) without sharing actual credentials.
If you need to reset history (e.g. due to sharing a credential), you can find the local working copies under
$INSOMNIA_DATA_DIR/plugins/insomnia-plugin-git-sync/git/wrk-*. Deleting the affected workspace should cause the next sync to start afresh.