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Bookmark or Share- nix - I don't understand why I have " cannot evaluate a function that ...(In modern times, a flake is a great way to have a consistent structure for your code with inputs reliably pinned: if you had a flake.nix using pkgs.callPackage to invoke your derivation, that would let users invoke nix build pathToYourFlake#nameOfThePackage to build it -- nix build .# if it's the flake's default package and the current ...
- 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 ...
- ruby - What is the meaning of *nix? - Stack Overflow*nix just means operating systems that are like the old workhorse Unix. Some examples include Linux, FreeBSD, and Mac OS X (its kernel, Darwin, is based on BSD). The main relation between *nix and Ruby is just a pragmatic one; most Ruby developers seem to prefer to work on Unix-like OSes (typically Linux or Mac OS X).
- How to use an experimental command in nix? - Stack OverflowI'd rather avoid head for the same reasons I'd avoid reading from ls or find: file names can contain newlines.. True, you can probably depend on .drv files *not to include new lines, and I suspect there are other places in Nix that assume single-line file names any
- nixos - Deeply merge sets in Nix - Stack Overflowin Nix, you can use // to merge two sets and replace the lefts attributes with the right ones if they're double, however. In this example: let set_one = { nested_set = {
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