diff --git a/Cargo.lock b/Cargo.lock
index 7a53c85c..399f1a70 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -33,7 +33,7 @@ version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b169f7a6d4742236a0a00c541b845991d0ac43e546831af1249753ab4c3aa3a0"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "cipher",
  "cpufeatures",
 ]
@@ -235,7 +235,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
 dependencies = [
  "addr2line",
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "miniz_oxide",
  "object",
@@ -358,6 +358,12 @@ dependencies = [
  "nom",
 ]
 
+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -425,6 +431,15 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
 
+[[package]]
+name = "cloudabi"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "colorchoice"
 version = "1.0.3"
@@ -495,7 +510,7 @@ version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a97769d94ddab943e4510d138150169a2758b5ef3eb191a9ee688de3e23ef7b3"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]
 
 [[package]]
@@ -634,7 +649,7 @@ version = "0.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "35c0522e981e68cbfa8c3f978441a5f34b30b96e146b33cd3359176b50fe8586"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "libredox",
  "windows-sys 0.59.0",
@@ -741,7 +756,7 @@ version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "wasi",
 ]
@@ -900,7 +915,7 @@ dependencies = [
  "httpdate",
  "itoa",
  "pin-project-lite",
- "smallvec",
+ "smallvec 1.13.2",
  "tokio",
  "want",
 ]
@@ -998,7 +1013,7 @@ version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e0242819d153cba4b4b05a5a8f2a7e9bbf97b6055b2a002b395c96b5ff3c0222"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]
 
 [[package]]
@@ -1075,7 +1090,7 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4979f22fdb869068da03c9f7528f8297c6fd2606bc3a4affe42e6a823fdb8da4"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "windows-targets 0.52.6",
 ]
 
@@ -1087,7 +1102,7 @@ checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
 dependencies = [
  "bitflags 2.6.0",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.5.7",
 ]
 
 [[package]]
@@ -1096,6 +1111,15 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
+[[package]]
+name = "lock_api"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4da24a77a3d8a6d4862d95f72e6fdb9c09a643ecdb402d754004a557f2bec75"
+dependencies = [
+ "scopeguard",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -1127,13 +1151,19 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0e7465ac9959cc2b1404e8e2367b43684a6d13790fe23056cc8c6c5a6b7bcb94"
 
+[[package]]
+name = "maybe-uninit"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
+
 [[package]]
 name = "md-5"
 version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d89e7ee0cfbedfc4da3340218492196241d89eefb6dab27de5df917a6d2e78cf"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "digest",
 ]
 
@@ -1293,14 +1323,40 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "parking_lot"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
+dependencies = [
+ "lock_api 0.3.4",
+ "parking_lot_core 0.6.3",
+ "rustc_version",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
 dependencies = [
- "lock_api",
- "parking_lot_core",
+ "lock_api 0.4.12",
+ "parking_lot_core 0.9.10",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bda66b810a62be75176a80873726630147a5ca780cd33921e0b5709033e66b0a"
+dependencies = [
+ "cfg-if 0.1.10",
+ "cloudabi",
+ "libc",
+ "redox_syscall 0.1.57",
+ "rustc_version",
+ "smallvec 0.6.14",
+ "winapi",
 ]
 
 [[package]]
@@ -1309,10 +1365,10 @@ version = "0.9.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
- "redox_syscall",
- "smallvec",
+ "redox_syscall 0.5.7",
+ "smallvec 1.13.2",
  "windows-targets 0.52.6",
 ]
 
@@ -1394,7 +1450,7 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d1fe60d06143b2430aa532c94cfe9e29783047f06c0d7fd359a9a51b729fa25"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "cpufeatures",
  "opaque-debug",
  "universal-hash",
@@ -1511,7 +1567,7 @@ version = "0.22.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d922163ba1f79c04bc49073ba7b32fd5a8d3b76a87c955921234b8e77333c51"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "indoc",
  "libc",
  "memoffset",
@@ -1679,6 +1735,12 @@ dependencies = [
  "rand_core 0.3.1",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.1.57"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.7"
@@ -1773,6 +1835,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
+[[package]]
+name = "rustc_version"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "rustix"
 version = "0.38.39"
@@ -1806,7 +1877,7 @@ dependencies = [
  "colored",
  "notify",
  "once_cell",
- "parking_lot",
+ "parking_lot 0.12.3",
  "pyo3",
  "rand 0.8.5",
  "rayon",
@@ -1882,8 +1953,9 @@ dependencies = [
  "cc",
  "libc",
  "once_cell",
- "parking_lot",
+ "parking_lot 0.9.0",
  "thiserror",
+ "tracing",
 ]
 
 [[package]]
@@ -1891,7 +1963,7 @@ name = "rwf-tests"
 version = "0.1.0"
 dependencies = [
  "console-subscriber",
- "parking_lot",
+ "parking_lot 0.12.3",
  "rwf",
  "rwf-macros 0.1.5",
  "serde",
@@ -1931,6 +2003,21 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
+[[package]]
+name = "semver"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
+dependencies = [
+ "semver-parser",
+]
+
+[[package]]
+name = "semver-parser"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
+
 [[package]]
 name = "serde"
 version = "1.0.214"
@@ -1978,7 +2065,7 @@ version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "cpufeatures",
  "digest",
 ]
@@ -1989,7 +2076,7 @@ version = "0.10.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "cpufeatures",
  "digest",
 ]
@@ -2033,6 +2120,15 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "smallvec"
+version = "0.6.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b97fcaeba89edba30f044a10c6a3cc39df9c3f17d7cd829dd1446cab35f890e0"
+dependencies = [
+ "maybe-uninit",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.13.2"
@@ -2145,7 +2241,7 @@ version = "1.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b9ef9bad013ada3808854ceac7b46812a6465ba368859a37e2100283d2d719c"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "once_cell",
 ]
 
@@ -2205,7 +2301,7 @@ dependencies = [
  "bytes",
  "libc",
  "mio",
- "parking_lot",
+ "parking_lot 0.12.3",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
@@ -2238,7 +2334,7 @@ dependencies = [
  "futures-channel",
  "futures-util",
  "log",
- "parking_lot",
+ "parking_lot 0.12.3",
  "percent-encoding",
  "phf",
  "pin-project-lite",
@@ -2439,7 +2535,7 @@ dependencies = [
  "once_cell",
  "regex",
  "sharded-slab",
- "smallvec",
+ "smallvec 1.13.2",
  "thread_local",
  "tracing",
  "tracing-core",
@@ -2578,7 +2674,7 @@ version = "0.2.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "128d1e363af62632b8eb57219c8fd7877144af57558fb2ef0368d0087bddeb2e"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "once_cell",
  "wasm-bindgen-macro",
 ]
@@ -2655,7 +2751,7 @@ version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "372d5b87f58ec45c384ba03563b03544dc5fadc3983e434b286913f5b4a9bb6d"
 dependencies = [
- "redox_syscall",
+ "redox_syscall 0.5.7",
  "wasite",
  "web-sys",
 ]
diff --git a/rwf-ruby/Cargo.toml b/rwf-ruby/Cargo.toml
index 2fd8b88d..708dd142 100644
--- a/rwf-ruby/Cargo.toml
+++ b/rwf-ruby/Cargo.toml
@@ -1,5 +1,7 @@
 [package]
 name = "rwf-ruby"
+license = "MIT"
+description = "Ruby (specifically Rack/Rails) bindings for Rwf"
 version = "0.1.0"
 edition = "2021"
 
@@ -7,7 +9,8 @@ edition = "2021"
 libc = "0.2"
 once_cell = "1"
 thiserror = "1"
-parking_lot = "*"
+parking_lot = "0.9"
+tracing = "0.1"
 
 [build-dependencies]
 cc = "1"
diff --git a/rwf-ruby/build.rs b/rwf-ruby/build.rs
index d1a485fe..97edd9f4 100644
--- a/rwf-ruby/build.rs
+++ b/rwf-ruby/build.rs
@@ -3,6 +3,7 @@ use std::process::Command;
 fn main() {
     println!("cargo:rerun-if-changed=src/bindings.c");
     println!("cargo:rerun-if-changed=src/bindings.h"); // Bindings are generated manually because bindgen goes overboard with ruby.h
+                                                       // println!("cargo:rustc-link-arg=-l/opt/homebrew/Cellar/ruby/3.3.4/lib/libruby.dylib");
 
     let output = Command::new("ruby")
         .arg("headers.rb")
diff --git a/rwf-ruby/src/.clangd b/rwf-ruby/src/.clangd
index a5e4a1a2..22b97819 100644
--- a/rwf-ruby/src/.clangd
+++ b/rwf-ruby/src/.clangd
@@ -2,3 +2,4 @@ CompileFlags:
   Add:
     - "-I/usr/include/ruby-3.3.0"
     - "-I/usr/include/ruby-3.3.0/x86_64-linux"
+    - "-I/opt/homebrew/Cellar/ruby/3.3.4/include"
diff --git a/rwf-ruby/src/lib.rs b/rwf-ruby/src/lib.rs
index a4b95ceb..0edd8f69 100644
--- a/rwf-ruby/src/lib.rs
+++ b/rwf-ruby/src/lib.rs
@@ -6,6 +6,7 @@ use std::mem::MaybeUninit;
 use std::path::Path;
 
 use std::collections::HashMap;
+use tracing::info;
 
 // Make sure the Ruby VM is initialized only once.
 static RUBY_INIT: OnceCell<Ruby> = OnceCell::new();
@@ -306,9 +307,11 @@ impl Ruby {
     /// Preload the Rack app into memory. Run this before trying to run anything else.
     pub fn load_app(path: impl AsRef<Path> + Copy) -> Result<(), Error> {
         Self::init()?;
-
         let path = path.as_ref();
 
+        let version = Self::eval("RUBY_VERSION").unwrap().to_string();
+        info!("Using {}", version);
+
         if path.exists() {
             // We use `require`, which only works with abslute paths.
             let absolute = canonicalize(path).unwrap();