fix: dynamically link rocksdb on dynamic nix builds

Fixes liburing error.

nix/packages/continuwuity.nix

@@ -2,9 +2,10 @@
   lib,
   self,
   stdenv,
-  liburing,
+  rocksdb,
   craneLib,
   pkg-config,
+  liburing,
   rustPlatform,
   cargoExtraArgs ? "",
   rustflags ? "",
@@ -36,12 +37,17 @@ let
       pkg-config
       rustPlatform.bindgenHook
     ];
+
     buildInputs = lib.optionals stdenv.hostPlatform.isLinux [ liburing ];
-    doCheck = false;
+
     env = {
       CARGO_PROFILE = profile;
       RUSTFLAGS = rustflags;
     }
+    // (lib.optionalAttrs (rocksdb != null) {
+      ROCKSDB_INCLUDE_DIR = "${rocksdb}/include";
+      ROCKSDB_LIB_DIR = "${rocksdb}/lib";
+    })
     // (lib.optionalAttrs (target_cpu != null) {
       TARGET_CPU = target_cpu;
     });
@@ -52,6 +58,18 @@ craneLib.buildPackage (
     inherit cargoExtraArgs;
     cargoArtifacts = craneLib.buildDepsOnly attrs;
 
+    # Needed to make continuwuity link to rocksdb
+    postFixup = lib.optionalString (stdenv.hostPlatform.isLinux && rocksdb != null) ''
+      old_rpath="$(patchelf --print-rpath $out/bin/conduwuit)"
+      extra_rpath="${
+        lib.makeLibraryPath [
+          rocksdb
+        ]
+      }"
+
+      patchelf --set-rpath "$old_rpath:$extra_rpath" $out/bin/conduwuit
+    '';
+
     meta = {
       description = "A community-driven Matrix homeserver in Rust";
       mainProgram = "conduwuit";

nix/packages/default.nix

@@ -36,7 +36,10 @@
 
               default = pkgs.callPackage ./continuwuity.nix {
                 inherit self craneLib;
+
                 liburing = (if isStatic then pkgs.pkgsStatic else pkgs).liburing;
+                rocksdb = if isStatic then null else pkgs.callPackage ./rocksdb.nix { };
+
                 # extra features via `cargoExtraArgs`
                 cargoExtraArgs = "-F http3";
                 # extra RUSTFLAGS via `rustflags`

nix/packages/rocksdb.nix

@@ -1,5 +1,7 @@
 {
-  stdenv,
+  # stdenv,
+  # enableJemalloc ? stdenv.hostPlatform.isLinux,
+  enableJemalloc ? false,
   rocksdb,
   fetchFromGitea,
   rust-jemalloc-sys-unprefixed,
@@ -13,16 +15,16 @@
   #
   # [1]: https://github.com/tikv/jemallocator/blob/ab0676d77e81268cd09b059260c75b38dbef2d51/jemalloc-sys/src/env.rs#L17
   jemalloc = rust-jemalloc-sys-unprefixed;
-  enableJemalloc = stdenv.hostPlatform.isLinux;
+  inherit enableJemalloc;
 }).overrideAttrs
   ({
-    version = "continuwuity-v0.5.0-unstable-2026-03-27";
+    version = "continuwuity-v0.5.0-unstable-2026-05-19";
     src = fetchFromGitea {
       domain = "forgejo.ellis.link";
       owner = "continuwuation";
       repo = "rocksdb";
-      rev = "463f47afceebfe088f6922420265546bd237f249";
-      hash = "sha256-1ef75IDMs5Hba4VWEyXPJb02JyShy5k4gJfzGDhopRk=";
+      rev = "3756b2b905e13216d8b56bcc783d814e7b073aff";
+      hash = "sha256-rSv4fr2bf9JJwdodgeuPCuceeh7k97KVxrAOC0wyPQY=";
     };
 
     # We have this already at https://forgejo.ellis.link/continuwuation/rocksdb/commit/a935c0273e1ba44eacf88ce3685a9b9831486155