Restructure everything

fish/nixpkgs/flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1722141560,
+        "narHash": "sha256-Ul3rIdesWaiW56PS/Ak3UlJdkwBrD4UcagCmXZR9Z7Y=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "038fb464fcfa79b4f08131b07f2d8c9a6bcc4160",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

fish/nixpkgs/flake.nix

@@ -0,0 +1,17 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    systems.url = "github:nix-systems/default";
+  };
+
+  outputs = { self, nixpkgs, systems, ... }:
+    let eachSystem = nixpkgs.lib.genAttrs (import systems);
+    in {
+      packages = eachSystem (system:
+        let pkgs = nixpkgs.legacyPackages.${system};
+        in {
+          soe = pkgs.callPackage ./package.nix {};
+          default = self.packages.${system}.soe;
+        });
+    };
+}

fish/nixpkgs/package.nix

@@ -1,10 +1,9 @@
 { stdenv
-, lib
 , fish
 }:
 
 stdenv.mkDerivation {
-  pname = "soe-fish";
+  pname = "soe";
   version = "1.0";
 
   src = ./.;
@@ -13,6 +12,6 @@ stdenv.mkDerivation {
 
   installPhase = ''
     mkdir -p $out/bin
-    cp soe-fish $out/bin
+    cp soe $out/bin
   '';
 }

fish/nixpkgs/soe

@@ -1,5 +1,6 @@
 #!/usr/bin/env fish
 
+echo -n "Primes up to: "
 read -P "" num
 echo