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+## Nix package manager Docker Image
+
+This image contains an installation of the [Nix package manager](https://nixos.org/nix/) installed as a single-user `nixuser`.
+
+This is based on the unpublished Dockerfile of https://github.com/romcheck/nix.
+
+Use this build to create your own customized images as follows:
+
+    FROM fretlink/nix
+
+    RUN nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixpkgs
+    RUN nix-channel --update
+
+    RUN nix-build -A pythonFull '<nixpkgs>'