Pin the .NET SDK with a deliberate roll-forward policy
Commit global.json and choose whether builds require an exact SDK or may use newer installed patches or feature bands.
Developer-Tools
Use git reflog before assuming a commit is lost
Recover commits after a bad reset, rebase, amend, or branch move by checking where Git refs pointed before.
Use file-based C# apps for small repo utilities
Use a single C# file when a repo utility is useful but a full project would be ceremony.
Use file-based C# apps for small utilities
A quick .NET 10 tip for running a single C# file without creating a project, with package directives, argument passing, conversion, and preview multi-file support.