Revert "feat: add nix support"

This reverts commit 7b21caccad.

flake.nix

@@ -1,76 +0,0 @@
-{
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    beaker-src = {
-      url = "git+https://git.bwaaa.monster/beaker";
-      flake = false;
-    };
-  };
-
-  outputs =
-    {
-      self,
-      nixpkgs,
-      beaker-src,
-    }:
-    let
-      supportedSystems = [
-        "x86_64-linux"
-        "aarch64-linux"
-      ];
-      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
-    in
-    {
-      formatter = forAllSystems (system: nixpkgs.legacyPackages.${system}.nixfmt);
-      packages = forAllSystems (
-        system:
-        let
-          pkgs = import nixpkgs { inherit system; };
-
-          beaker = pkgs.stdenv.mkDerivation {
-            pname = "beaker";
-            version = "git";
-            src = beaker-src;
-            makeFlags = [
-              "INSTALL_PREFIX=$(out)/"
-              "LDCONFIG=true"
-            ];
-          };
-        in
-        {
-          default = pkgs.stdenv.mkDerivation {
-            pname = "omnisearch";
-            version = "git";
-            src = ./.;
-
-            buildInputs = [
-              pkgs.libxml2.dev
-              pkgs.curl.dev
-              pkgs.openssl
-              beaker
-            ];
-
-            preBuild = ''
-              makeFlagsArray+=(
-                "PREFIX=$out"
-                "CFLAGS=-Wall -Wextra -O2 -Isrc -I${pkgs.libxml2.dev}/include/libxml2"
-                "LIBS=-lbeaker -lcurl -lxml2 -lpthread -lm -lssl -lcrypto"
-              )
-            '';
-
-            installPhase = ''
-              mkdir -p $out/bin $out/share/omnisearch
-              install -Dm755 bin/omnisearch $out/bin/omnisearch
-              cp -r templates static -t $out/share/omnisearch/
-            '';
-
-            meta = {
-              description = "Lightweight metasearch engine in C";
-              platforms = pkgs.lib.platforms.linux;
-            };
-          };
-        }
-      );
-      nixosModules.default = import ./module.nix self;
-    };
-}