Let’s say you want to update some tool to a newer version in you project. You need to make sure everyone updates their version of the tool on their machine as well. With nix you just update the tool version in shell.nix and when your colleagues pull it down they will now also use the new version. Same goes for if you have multiple projects, it you want to try something out, just try it out for that project, you don’t need to worry about whether or not it’s compatible with the tools in the other project. I’ve seen it reduce the friction with experimenting and testing new things.
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