diff --git a/Cargo.lock b/Cargo.lock
index 09b78ca..0797b8d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -318,6 +318,8 @@ version = "1.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57b6a275aa2903740dc87da01c62040406b8812552e97129a63ea8850a17c6e6"
 dependencies = [
+ "jobserver",
+ "libc",
  "shlex",
 ]
 
@@ -519,6 +521,41 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "darling"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f63b86c8a8826a49b8c21f08a2d07338eec8d900540f8630dc76284be802989"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95133861a8032aaea082871032f5815eb9e98cef03fa916ab4500513994df9e5"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d336a2a514f6ccccaa3e09b02d41d35330c07ddf03a62165fcec10bb561c7806"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "dashmap"
 version = "6.0.1"
@@ -550,6 +587,46 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "deranged"
+version = "0.3.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b42b6fa04a440b495c8b04d0e71b707c585f83cb9cb28cf8cd0d976c315e31b4"
+dependencies = [
+ "powerfmt",
+]
+
+[[package]]
+name = "derive_builder"
+version = "0.20.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd33f37ee6a119146a1781d3356a7c26028f83d779b2e04ecd45fdc75c76877b"
+dependencies = [
+ "derive_builder_macro",
+]
+
+[[package]]
+name = "derive_builder_core"
+version = "0.20.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7431fa049613920234f22c47fdc33e6cf3ee83067091ea4277a3f8c4587aae38"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "derive_builder_macro"
+version = "0.20.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4abae7035bf79b9877b779505d8cf3749285b80c43941eda66604841889451dc"
+dependencies = [
+ "derive_builder_core",
+ "syn",
+]
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -699,6 +776,7 @@ dependencies = [
  "tokio-util",
  "toml",
  "uuid",
+ "vergen-git2",
  "wisp-mux",
 ]
 
@@ -935,12 +1013,37 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "getset"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f636605b743120a8d32ed92fc27b6cde1a769f8f936c065151eb66f88ded513c"
+dependencies = [
+ "proc-macro-error2",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "gimli"
 version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
 
+[[package]]
+name = "git2"
+version = "0.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b903b73e45dc0c6c596f2d37eccece7c1c8bb6e4407b001096387c63d0d93724"
+dependencies = [
+ "bitflags",
+ "libc",
+ "libgit2-sys",
+ "log",
+ "url",
+]
+
 [[package]]
 name = "h2"
 version = "0.4.6"
@@ -1181,6 +1284,12 @@ dependencies = [
  "wasmtimer",
 ]
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "idna"
 version = "0.4.0"
@@ -1260,6 +1369,15 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
+[[package]]
+name = "jobserver"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48d1dbcbbeb6a7fec7e059840aa538bd62aaccf972c7346c4d9d2059312853d0"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.70"
@@ -1281,6 +1399,30 @@ version = "0.2.158"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
 
+[[package]]
+name = "libgit2-sys"
+version = "0.17.0+1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "10472326a8a6477c3c20a64547b0059e4b0d086869eee31e6d7da728a8eb7224"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "pkg-config",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.1.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2d16453e800a8cf6dd2fc3eb4bc99b786a9b90c663b8559a5b1a041bf89e472"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linked-hash-map"
 version = "0.5.6"
@@ -1444,6 +1586,12 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "num-conv"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+
 [[package]]
 name = "num-traits"
 version = "0.2.19"
@@ -1453,6 +1601,15 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "num_threads"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c7398b9c8b70908f6371f47ed36737907c87c52af34c268fed0bf0ceb92ead9"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "object"
 version = "0.36.4"
@@ -1610,6 +1767,12 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
+[[package]]
+name = "powerfmt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.20"
@@ -1619,6 +1782,28 @@ dependencies = [
  "zerocopy",
 ]
 
+[[package]]
+name = "proc-macro-error-attr2"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96de42df36bb9bba5542fe9f1a054b8cc87e172759a1868aa05c1f3acc89dfc5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+]
+
+[[package]]
+name = "proc-macro-error2"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11ec05c52be0a07b08061f7dd003e7d7092e0472bc731b4af7bb1ef876109802"
+dependencies = [
+ "proc-macro-error-attr2",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.86"
@@ -2236,6 +2421,39 @@ dependencies = [
  "tikv-jemalloc-sys",
 ]
 
+[[package]]
+name = "time"
+version = "0.3.36"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5dfd88e563464686c916c7e46e623e520ddc6d79fa6641390f2e3fa86e83e885"
+dependencies = [
+ "deranged",
+ "itoa",
+ "libc",
+ "num-conv",
+ "num_threads",
+ "powerfmt",
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
+
+[[package]]
+name = "time-macros"
+version = "0.2.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f252a68540fde3a3877aeea552b832b40ab9a69e318efd078774a01ddee1ccf"
+dependencies = [
+ "num-conv",
+ "time-core",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.8.0"
@@ -2548,6 +2766,46 @@ version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
+[[package]]
+name = "vergen"
+version = "9.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c32e7318e93a9ac53693b6caccfb05ff22e04a44c7cf8a279051f24c09da286f"
+dependencies = [
+ "anyhow",
+ "derive_builder",
+ "rustc_version",
+ "rustversion",
+ "vergen-lib",
+]
+
+[[package]]
+name = "vergen-git2"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a62c52cd2b2b8b7ec75fc20111b3022ac3ff83e4fc14b9497cfcfd39c54f9c67"
+dependencies = [
+ "anyhow",
+ "derive_builder",
+ "git2",
+ "rustversion",
+ "time",
+ "vergen",
+ "vergen-lib",
+]
+
+[[package]]
+name = "vergen-lib"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e06bee42361e43b60f363bad49d63798d0f42fb1768091812270eca00c784720"
+dependencies = [
+ "anyhow",
+ "derive_builder",
+ "getset",
+ "rustversion",
+]
+
 [[package]]
 name = "version_check"
 version = "0.9.5"
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 5f6651d..6eca21e 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -47,3 +47,6 @@ yaml = ["dep:serde_yaml"]
 toml = ["dep:toml"]
 
 twisp = ["dep:pty-process", "dep:libc", "dep:async-trait", "dep:shell-words"]
+
+[build-dependencies]
+vergen-git2 = { version = "1.0.0", features = ["rustc"] }
diff --git a/server/build.rs b/server/build.rs
new file mode 100644
index 0000000..3c5ee44
--- /dev/null
+++ b/server/build.rs
@@ -0,0 +1,16 @@
+use std::error::Error;
+
+use vergen_git2::{Emitter, Git2Builder, RustcBuilder};
+
+fn main() -> Result<(), Box<dyn Error>> {
+	let rustc = RustcBuilder::default()
+		.semver(true)
+		.host_triple(true)
+		.build()?;
+	let git = Git2Builder::default().sha(true).dirty(true).build()?;
+	Emitter::new()
+		.add_instructions(&rustc)?
+		.add_instructions(&git)?
+		.emit()?;
+	Ok(())
+}
diff --git a/server/src/config.rs b/server/src/config.rs
index 8d341ca..a73ab51 100644
--- a/server/src/config.rs
+++ b/server/src/config.rs
@@ -16,6 +16,17 @@ use wisp_mux::extensions::{
 
 use crate::{handle::wisp::utils::get_certificates_from_paths, CLI, CONFIG, RESOLVER};
 
+const VERSION_STRING: &str = concat!(
+	"git ",
+	env!("VERGEN_GIT_SHA"),
+	", dirty ",
+	env!("VERGEN_GIT_DIRTY"),
+	" compiled with rustc ",
+	env!("VERGEN_RUSTC_SEMVER"),
+	" on ",
+	env!("VERGEN_RUSTC_HOST_TRIPLE")
+);
+
 #[derive(Serialize, Deserialize, Default, Debug)]
 #[serde(rename_all = "lowercase")]
 pub enum SocketType {
@@ -270,13 +281,13 @@ impl Default for WispConfig {
 			allow_wsproxy: true,
 
 			wisp_v2: false,
-			extensions: vec![ProtocolExtension::Udp],
+			extensions: vec![ProtocolExtension::Udp, ProtocolExtension::Motd],
 			auth_extension: None,
 
 			password_extension_users: HashMap::new(),
 			certificate_extension_keys: Vec::new(),
 
-			motd_extension: String::new(),
+			motd_extension: format!("epoxy_server ({})", VERSION_STRING),
 		}
 	}
 }
@@ -453,7 +464,7 @@ impl Default for ConfigFormat {
 
 /// Performant server implementation of the Wisp protocol in Rust, made for epoxy.
 #[derive(Parser)]
-#[command(version = clap::crate_version!())]
+#[command(version = VERSION_STRING)]
 pub struct Cli {
 	/// Config file to use.
 	pub config: Option<PathBuf>,