I’m trying to install a specific version of mongodb using this command nix-shell -p mongodb-4_4 but get the below error. error: Package ‘mongodb-4.4.13’ in /nix/store/q3w6aldk8khr1f6vd050r8ambymz43x4-nixos-22.05/nixos/pkgs/servers/nosql/mongodb/mongodb.nix:133 has an unfree license (‘SSPL’), refusi…

yes mkdir -p ~/.config/nixpkgs echo “{ allowUnfree = true; }” >> ~/.config/nixpkgs/config.nix

Cant get unfree packages to install on nixos using nix-shell

smissingham April 16, 2025, 5:24pm 7

Thanks to the previous replies, just implemented it with home-manager.

Here’s my implementation:

Here’s the discourse reference on how-to

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