feat: postgreact: hello world

package/c/postgreact/default.nix

@@ -0,0 +1,41 @@
+{
+  lib,
+  stdenv,
+  postgresql,
+  ...
+}: 
+
+stdenv.mkDerivation {
+  pname = "postgreact";
+  version = "0.1";
+  
+  src = ./.;
+
+  buildInputs = [
+    postgresql
+  ];
+
+  buildPhase = ''
+    mkdir -p target
+    sh ./make.sh build
+  '';
+
+  installPhase = ''
+    mkdir -p $out/lib/postgresql $out/share/postgresql/extension
+    
+    # Install compiled library
+    install -m 755 -D target/postgreact.so $out/lib/postgresql/postgreact.so
+    
+    # Install control and SQL files
+    install -m 644 -D postgreact.control $out/share/postgresql/extension/postgreact.control
+    install -m 644 -D postgreact--0.1.sql $out/share/postgresql/extension/postgreact--0.1.sql
+  '';
+
+  meta = with lib; {
+    description = "PostgreSQL extension for reactive functions";
+    homepage = "https://github.com/yukkop/util.nix";
+    license = licenses.mit;
+    platforms = postgresql.meta.platforms;
+    maintainers = with maintainers; [ ];
+  };
+}