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nix-community / impermanence

Modules to help you handle persistent state on systems with ephemeral root storage [maintainer=@talyz]
MIT License
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Question about Home Manager #123

Closed dschrempf closed 1 year ago

dschrempf commented 1 year ago

Hi!

I am working on activating impermanence for my setup, and it works great so far. However, I did not switch over to using a temporary file system, yet, because I am unsure how symbolic links managed by Home Manager are handled. That is, Home Manager creates (many) symbolic links during activation. For example, when enabling programs.beets, Home Manager activation creates a symlink from ${HOME}/.config/beets/config.yaml to the configuration file in the Nix store.

Are these "Home-Manager-Activation" links lost after reboot when using tmpfs, or are they somehow recreated by impermanence (or Home Manager) after each reboot? If they are lost, do you link all of these files using impermanence? Is this feasable?

Thank you for your help!

dschrempf commented 1 year ago

I just had a closer look, and it seems the Home Manager activation script is run at every boot. That's great, so a tmpfs should work out of the box. Please let me know, if you have had a different experience! Feel free to close this issue.

talyz commented 1 year ago

Indeed, at least as long as you're using the home-manager NixOS module, it should be handled automatically on boot.