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Upload a local Unity project to GitHub Desktop for reliable version control and simple backups.
Download GitHub Desktop and sign into the GitHub account. Configure a name and email under the app preferences so commits show a real human behind the keyboard.
Open the Unity project folder and create a .gitignore file at the top level. Exclude generated and heavy folders so the repository stays sane.
Library/
Temp/
Build/
obj/
*.user
*.csproj
*.sln
In GitHub Desktop choose File then Add Local Repository and pick the Unity project folder. If a repository is not present choose Create New Repository and set the local path to the project folder.
Use the changes pane to select files to include. Make an initial commit with a clear message like Initial project import. Use Publish Repository to push to GitHub so a remote copy exists.
Open the repository on GitHub in a browser and confirm key folders exist. For large binary assets enable Git LFS via the command line or the GitHub Desktop guide so large files do not break history.
Extra tip avoid committing generated files and check for accidentally large files before the first commit. That keeps history light and the clone time reasonable.