Git

Steps to discard all tracked and untracked local changes, then switch to another branch.

View commit history, manage local and remote branches, pull new branches, and merge into main.

Initialize a local repo, set the main branch, connect to a remote, and push for the first time.

Fix a divergent main branch when the remote main changed and the local main also has an unpushed commit.

A fully local Git workflow using a bare .git directory as the central remote, with no dependency on any external hosting.

Set up GitHub SSH authentication without repeated username and token prompts, using separate keys for local development and EC2.

Fix 'ssh: connect to github.com port 22: Connection timed out' on networks that block port 22 by routing Git SSH through ssh.github.com on port 443.

Use git reset --mixed HEAD~1 to remove the last commit while keeping its changes in the working tree, ready to fix and re-commit.