Provide install option for read-only linux distributions

[fkromer]

Read-only distributions like Bluefin LTS forbid the global installation of packages. It would be great if there would be provided an install option which does not require mutation of the OS file system. A well established option to provide pre-built CLI applications on Linux read-only OSes and Mac is the usage of Homebrew via Homebrew on Linux.

This would significantly ease the setup of openspec in non-JS/TS projects and the intergration with IDEs. Support for slash commands usually requires a global openspec installation.

[clay-good]

Thanks for raising this, @fkromer 🙏

This is about Offer an install path (e.g. Homebrew/Linuxbrew) that doesn't mutate the OS filesystem on read-only distros. — an open-ended feature/design idea rather than a discrete, PR-actionable bug or task. To honor it properly we've moved it to Discussions, where it can keep evolving with community input and you can re-engage anytime:

👉 #1599

The original issue (and any comments) stays here for the record, so nothing is lost — please continue the conversation in the discussion above. Closing the issue in favor of that thread.