Once is a command-line tool for running a command only once, even if it's executed multiple times. It uses a lock file to prevent concurrent execution. The tool is written in Go and has a simple, intuitive interface. It can be used to ensure that a command is only executed once, even if it's run multiple times in parallel. The code is available on GitHub at https://github.com/alex0ptr/once.

Microsoft is expanding its Microsoft 365 Family and Premium subscriptions to allow multiple users to access AI benefits, including Copilot and AI usage features, in addition to existing Office apps and OneDrive storage access.