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Bookmark or Share- When and how should default.nix, shell.nix and release.nix be used?@David天宇Wong there is a difference between nix build and nix-build (note the space). The stand-alone nix tool is for flakes (and some utilities like nix show-derivation etc), while the nix-* binaries are for non-flake Nix. Summary: this article is still accurate in Nov 2022, although it could do with a this is about non-flake Nix notice. –
- nix - How to install systemd service on nixos - Stack OverflowOnly the nix-daemon is allowed to mount the nix-store as writable. Therefore, you must create a systemd.services.
entry in your configuration.nix to interact with the underlying system; alternatively you can patch nixpkgs directly and point your configuration to your fork. - nix - How to use postgresql in nixos - Stack Overflowpsql won't connect after nix-env because it just puts the PostgreSQL package into the /nix/store, but doesn't start it. You can check it on the terminal with. ps ax | grep postgres 2. nix-shell --pure shell.nix. This puts the PostgreSQL package in the /nix/store, starts and initializes the database cluster (with pg_ctl start and initdb ...
- nix-shell: how to specify a custom environment variable?I'm learning about nixos and nix expressions. In a project folder I created a shell.nix and I when I run nix-shell I want it to preset an environment variable for me. For example to set the PGDATA env var. I know there are several ways to write nix expression files (I'm not yet used to most of them). Here is my sample: shell.nix
- How can I fix `[Errno 13] Permission denied: '/nix/store/...'` in my ...Here's the nix expression I'm trying to build: { python3Packages, fetchFromGitHub }: let inherit (python3Packages) buildPythonPackage fetchPypi; attrs20 = buildPythonPackage rec { pname = ...
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