feat: add packages from flake

pkgs/reposilite.nix

@@ -0,0 +1,38 @@
+{
+  lib,
+  stdenv,
+  fetchurl,
+  makeWrapper,
+  jre_headless,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  name = "reposilite";
+  version = "3.5.16";
+
+  src = fetchurl {
+    url = with finalAttrs; "https://maven.reposilite.com/releases/com/reposilite/reposilite/${version}/reposilite-${version}-all.jar";
+    hash = "sha256-zketAvn0XgBRAS+Bb3KcUcpdydbQQruS+gZ5Bfrjiig=";
+  };
+
+  nativeBuildInputs = [makeWrapper];
+
+  dontUnpack = true;
+
+  installPhase = with finalAttrs; ''
+    runHook preInstall
+
+    mkdir -p $out/bin $out/share/${name}
+    cp ${src} $out/share/${name}/${name}.jar
+    makeWrapper ${jre_headless}/bin/java $out/bin/${name} --add-flags "-jar $out/share/${name}/${name}.jar"
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Lightweight and easy-to-use repository management software dedicated for the Maven based artifacts in the JVM ecosystem";
+    homepage = "https://reposilite.com/";
+    license = licenses.asl20;
+    platforms = platforms.unix;
+    mainProgram = "reposilite";
+  };
+})