diff --git a/Cargo.lock b/Cargo.lock
index 514aa75..878ba07 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,12 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "Inflector"
+version = "0.11.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe438c63458706e03479442743baae6c88256498e6431708f6dfc520a26515d3"
+
 [[package]]
 name = "addr2line"
 version = "0.21.0"
@@ -106,6 +112,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed570934406eb16438a4e976b1b4500774099c13b8cb96eec99f620f05090ddf"
+
 [[package]]
 name = "bumpalo"
 version = "3.14.0"
@@ -166,7 +178,7 @@ version = "3.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ea181bf566f71cb9a5d17a59e1871af638180a18fb0035c92ae62b705207123"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "clap_lex",
  "indexmap 1.9.3",
  "textwrap",
@@ -190,7 +202,7 @@ dependencies = [
  "encode_unicode",
  "lazy_static",
  "libc",
- "windows-sys",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
@@ -334,6 +346,22 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "errno"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a258e46cdc063eb8519c00b9fc845fc47bcfca4130e2f08e88665ceda8474245"
+dependencies = [
+ "libc",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "fastrand"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25cbce373ec4653f1a01a31e8a5e5ec0c622dc27ff9c4e6606eefef5cbbed4a5"
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -465,9 +493,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.151"
+version = "0.2.153"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "302d7ab3130588088d277783b1e2d2e10c9e9e4a16dd9050e6ec93fb3e7048f4"
+checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "linked-hash-map"
@@ -475,6 +503,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "01cda141df6706de531b6c46c3a33ecca755538219bd484262fa09410c13539c"
+
 [[package]]
 name = "log"
 version = "0.4.20"
@@ -741,6 +775,16 @@ dependencies = [
  "yansi",
 ]
 
+[[package]]
+name = "prettyplease"
+version = "0.1.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8646e95016a7a6c4adea95bafa8a16baab64b583356217f2c85db4a39d9a86"
+dependencies = [
+ "proc-macro2",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "proc-macro-crate"
 version = "1.3.1"
@@ -813,6 +857,15 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4722d768eff46b75989dd134e5c353f0d6296e5aaa3132e776cbdb56be7731aa"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.2"
@@ -869,6 +922,19 @@ version = "0.1.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
 
+[[package]]
+name = "rustix"
+version = "0.38.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "322394588aaf33c24007e8bb3238ee3e4c5c09c084ab32bc73890b99ff326bca"
+dependencies = [
+ "bitflags 2.4.2",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.14"
@@ -1077,6 +1143,19 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "01ce4141aa927a6d1bd34a041795abd0db1cccba5d5f24b009f694bdf3a1f3fa"
+dependencies = [
+ "cfg-if",
+ "fastrand",
+ "redox_syscall",
+ "rustix",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "test-case"
 version = "2.2.2"
@@ -1109,6 +1188,7 @@ checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
 name = "tf-demo-parser"
 version = "0.5.0"
 dependencies = [
+ "Inflector",
  "better-panic",
  "bitbuffer",
  "criterion",
@@ -1119,18 +1199,24 @@ dependencies = [
  "insta",
  "itertools",
  "jemallocator",
+ "lazy_static",
  "main_error",
  "no-panic",
  "num-traits 0.2.17",
  "num_enum",
  "parse-display",
  "pretty_assertions",
+ "prettyplease",
+ "proc-macro2",
+ "quote",
  "schemars",
  "serde",
  "serde_json",
  "serde_repr",
  "snap",
  "steamid-ng",
+ "syn 1.0.109",
+ "tempfile",
  "test-case",
  "tracing",
  "tracing-subscriber",
@@ -1389,7 +1475,16 @@ version = "0.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets 0.52.0",
 ]
 
 [[package]]
@@ -1398,13 +1493,28 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a18201040b24831fbb9e4eb208f8892e1f50a37feb53cc7ff887feb8f50e7cd"
+dependencies = [
+ "windows_aarch64_gnullvm 0.52.0",
+ "windows_aarch64_msvc 0.52.0",
+ "windows_i686_gnu 0.52.0",
+ "windows_i686_msvc 0.52.0",
+ "windows_x86_64_gnu 0.52.0",
+ "windows_x86_64_gnullvm 0.52.0",
+ "windows_x86_64_msvc 0.52.0",
 ]
 
 [[package]]
@@ -1413,42 +1523,84 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
+
 [[package]]
 name = "winnow"
 version = "0.5.32"
diff --git a/Cargo.toml b/Cargo.toml
index 5c46c01..44c3b98 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,11 +30,16 @@ name = "schema"
 path = "src/bin/schema.rs"
 required-features = ["schema"]
 
+[[bin]]
+name = "codegen"
+path = "src/bin/codegen.rs"
+required-features = ["codegen"]
+
 [dependencies]
 bitbuffer = { version = "0.10.9", features = ["serde"] }
 num_enum = "0.5.7"
 num-traits = "0.2.15"
-enumflags2 = { version = "0.7.5", features = ["serde"] }
+enumflags2 = { version = "0.7.8", features = ["serde"] }
 snap = "1.1.0"
 serde = { version = "1.0.152", features = ["derive", "rc"] }
 serde_json = "1.0.91"
@@ -47,14 +52,26 @@ better-panic = { version = "0.3.0", optional = true }
 no-panic = { version = "0.1.17", optional = true }
 fnv = "1.0.7"
 steamid-ng = "1.0.0"
-schemars = { version = "0.8.11", optional = true }
 tracing = { version = "0.1.37", optional = true }
 tracing-subscriber = { version = "0.3.16", features = ["env-filter"], optional = true }
 itertools = "0.10.5"
 
+# schema
+schemars = { version = "0.8.11", optional = true }
+
+# codegen
+quote = { version = "1", optional = true }
+syn = { version = "1", features = ["full"], optional = true }
+Inflector = { version = "0.11", default-features = false, optional = true }
+proc-macro2 = { version = "1", optional = true }
+tempfile = { version = "3", optional = true }
+lazy_static = { version = "1", optional = true }
+prettyplease = { version = "0.1", optional = true }
+
 [features]
 schema = ["schemars", "bitbuffer/schemars"]
 trace = ["tracing", "tracing-subscriber"]
+codegen = ["better-panic", "quote", "syn", "Inflector", "proc-macro2", "tempfile", "lazy_static", "prettyplease"]
 
 [dev-dependencies]
 pretty_assertions = "1.3.0"
diff --git a/codegen.nix b/codegen.nix
new file mode 100644
index 0000000..acb47e3
--- /dev/null
+++ b/codegen.nix
@@ -0,0 +1,23 @@
+{
+  stdenv,
+  rustPlatform,
+  lib,
+}: let
+  inherit (lib.sources) sourceByRegex;
+  src = sourceByRegex ./. ["Cargo.*" "(src|benches|tests|test_data)(/.*)?"];
+in
+  rustPlatform.buildRustPackage {
+    pname = "demostf-parser-codegen";
+    version = "0.1.0";
+
+    src = lib.traceVal src;
+
+    buildType = "debug";
+    buildFeatures = ["codegen"];
+
+    doCheck = false;
+
+    cargoLock = {
+      lockFile = ./Cargo.lock;
+    };
+  }
diff --git a/codegen/.gitignore b/codegen/.gitignore
deleted file mode 100644
index a81dc8c..0000000
--- a/codegen/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-target
-out.rs
\ No newline at end of file
diff --git a/codegen/Cargo.lock b/codegen/Cargo.lock
deleted file mode 100644
index 8ed8d17..0000000
--- a/codegen/Cargo.lock
+++ /dev/null
@@ -1,829 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "Inflector"
-version = "0.11.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe438c63458706e03479442743baae6c88256498e6431708f6dfc520a26515d3"
-
-[[package]]
-name = "addr2line"
-version = "0.17.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9ecd88a8c8378ca913a680cd98f0f13ac67383d35993f86c90a70e3f137816b"
-dependencies = [
- "gimli",
-]
-
-[[package]]
-name = "adler"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
-
-[[package]]
-name = "aho-corasick"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
-dependencies = [
- "memchr",
-]
-
-[[package]]
-name = "atty"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
-dependencies = [
- "hermit-abi",
- "libc",
- "winapi",
-]
-
-[[package]]
-name = "autocfg"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
-
-[[package]]
-name = "backtrace"
-version = "0.3.63"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "321629d8ba6513061f26707241fa9bc89524ff1cd7a915a97ef0c62c666ce1b6"
-dependencies = [
- "addr2line",
- "cc",
- "cfg-if",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
-]
-
-[[package]]
-name = "better-panic"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d12a680cc74d8c4a44ee08be4a00dedf671b089c2440b2e3fdaa776cd468476"
-dependencies = [
- "backtrace",
- "console",
-]
-
-[[package]]
-name = "bitbuffer"
-version = "0.10.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "525586993a118417512a49bada2d143319310891f48b0b116c8f64fbb6486c87"
-dependencies = [
- "bitbuffer_derive",
- "err-derive",
- "memchr",
- "num-traits 0.2.15",
- "serde",
-]
-
-[[package]]
-name = "bitbuffer_derive"
-version = "0.10.0"
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-dependencies = [
- "proc-macro2",
- "quote",
- "syn 1.0.99",
- "syn_util",
-]
-
-[[package]]
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-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
-[[package]]
-name = "cc"
-version = "1.0.72"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
-
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
-
-[[package]]
-name = "clicolors-control"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90082ee5dcdd64dc4e9e0d37fbf3ee325419e39c0092191e0393df65518f741e"
-dependencies = [
- "atty",
- "lazy_static",
- "libc",
- "winapi",
-]
-
-[[package]]
-name = "console"
-version = "0.9.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45e0f3986890b3acbc782009e2629dfe2baa430ac091519ce3be26164a2ae6c0"
-dependencies = [
- "clicolors-control",
- "encode_unicode",
- "lazy_static",
- "libc",
- "regex",
- "termios",
- "winapi",
-]
-
-[[package]]
-name = "either"
-version = "1.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
-
-[[package]]
-name = "encode_unicode"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-
-[[package]]
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-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "num-traits 0.1.43",
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- "winapi-i686-pc-windows-gnu",
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diff --git a/codegen/Cargo.toml b/codegen/Cargo.toml
deleted file mode 100644
index 3da2d0b..0000000
--- a/codegen/Cargo.toml
+++ /dev/null
@@ -1,22 +0,0 @@
-[package]
-name = "tf-demo-parser-gen"
-version = "0.2.0"
-authors = ["Robin Appelman <robin@icewind.nl>"]
-edition = "2018"
-
-[[bin]]
-name = "generate"
-path = "src/main.rs"
-
-[dependencies]
-tf-demo-parser = { version = "*", path = "../" }
-quote = "1"
-syn = { version = "1", features = ["full"] }
-Inflector = { version = "0.11", default-features = false }
-better-panic = "0.2"
-proc-macro2 = "1"
-tempfile = "3"
-lazy_static = "1"
-fnv = "1"
-prettyplease = "0.1"
-main_error = "0.1.2"
\ No newline at end of file
diff --git a/flake.nix b/flake.nix
index 06fd149..e511cec 100644
--- a/flake.nix
+++ b/flake.nix
@@ -20,10 +20,12 @@
     rust-overlay,
     ...
   }: let
-      inherit (flake-utils.lib) eachDefaultSystem eachSystem;
-    in
-    (eachDefaultSystem (system: let
-      overlays = [(import rust-overlay)];
+    inherit (flake-utils.lib) eachDefaultSystem eachSystem;
+  in (eachDefaultSystem (system: let
+      overlays = [
+        (import rust-overlay)
+        (import ./overlay.nix)
+      ];
       pkgs = (import nixpkgs) {
         inherit system overlays;
       };
@@ -45,10 +47,8 @@
       assetNameForTarget = target: "parser-${builtins.replaceStrings ["-unknown" "-gnu" "-musl" "eabihf" "-pc"] ["" "" "" "" ""] target}${cross-naersk'.execSufficForTarget target}";
 
       cross-naersk' = pkgs.callPackage cross-naersk {inherit naersk;};
-      src = lib.sources.sourceByRegex (lib.cleanSource ./.) ["Cargo.*" "(src|benches|tests|test_data)(/.*)?"];
       nearskOpt = {
-        pname = "dispenser";
-        root = src;
+        inherit (pkgs.demostf-parser) pname root;
       };
 
       buildMatrix = targets: {
@@ -90,7 +90,7 @@
                 };
             }))
         // rec {
-          tf-demo-parser = packages.${hostTarget};
+          inherit (pkgs) demostf-parser demostf-parser-codegen demostf-parser-codegen-events demostf-parser-codegen-props;
           check = hostNaersk.buildPackage (nearskOpt
             // {
               mode = "check";
@@ -104,7 +104,7 @@
               release = false;
               mode = "test";
             });
-          default = tf-demo-parser;
+          default = demostf-parser;
         };
 
       inherit targets;
@@ -141,6 +141,7 @@
       };
     })
     // {
+      overlays.default = import ./overlay.nix;
       hydraJobs = eachSystem ["x86_64-linux" "aarch64-linux"] (system: {
         parser = self.packages.${system}.tf-demo-parser;
       });
diff --git a/overlay.nix b/overlay.nix
new file mode 100644
index 0000000..882603f
--- /dev/null
+++ b/overlay.nix
@@ -0,0 +1,12 @@
+final: prev: {
+  demostf-parser = final.callPackage ./parser.nix {};
+  demostf-parser-codegen = final.callPackage ./codegen.nix {};
+  demostf-parser-codegen-events = final.runCommand "gameevent_gen.rs" {} ''
+    ${final.demostf-parser-codegen}/bin/generate ${./test_data/small.dem} events > $out
+    ${final.rustfmt}/bin/rustfmt $out
+  '';
+  demostf-parser-codegen-props = final.runCommand "sendprop_gen.rs" {} ''
+    ${final.demostf-parser-codegen}/bin/generate ${./test_data/small.dem} props > $out
+    ${final.rustfmt}/bin/rustfmt $out
+  '';
+}
diff --git a/parser.nix b/parser.nix
new file mode 100644
index 0000000..60d4cbb
--- /dev/null
+++ b/parser.nix
@@ -0,0 +1,18 @@
+{
+  stdenv,
+  rustPlatform,
+  lib,
+}: let
+  inherit (lib.sources) sourceByRegex;
+  src = sourceByRegex ./. ["Cargo.*" "(src|benches|tests|test_data)(/.*)?"];
+in
+  rustPlatform.buildRustPackage rec {
+    pname = "demostf-parser";
+    version = "0.1.0";
+
+    inherit src;
+
+    cargoLock = {
+      lockFile = ./Cargo.lock;
+    };
+  }
diff --git a/codegen/src/main.rs b/src/bin/codegen.rs
similarity index 86%
rename from codegen/src/main.rs
rename to src/bin/codegen.rs
index 1529e3a..1a89deb 100644
--- a/codegen/src/main.rs
+++ b/src/bin/codegen.rs
@@ -1,15 +1,12 @@
-use crate::gameevent::generate_game_events;
-use crate::propnames::generate_prop_names;
 use main_error::MainError;
 use prettyplease::unparse;
 use std::env;
 use std::fs;
 use syn::{parse2, File};
+use tf_demo_parser::codegen::gameevent::generate_game_events;
+use tf_demo_parser::codegen::propnames::generate_prop_names;
 use tf_demo_parser::Demo;
 
-mod gameevent;
-mod propnames;
-
 fn main() -> std::result::Result<(), MainError> {
     better_panic::install();
 
diff --git a/codegen/src/gameevent.rs b/src/codegen/gameevent.rs
similarity index 98%
rename from codegen/src/gameevent.rs
rename to src/codegen/gameevent.rs
index f141b7e..af6bb89 100644
--- a/codegen/src/gameevent.rs
+++ b/src/codegen/gameevent.rs
@@ -1,15 +1,15 @@
 extern crate proc_macro;
 
+use crate::demo::gameevent_gen::get_sizes;
+use crate::demo::gamevent::{GameEventDefinition, GameEventValueType};
+use crate::demo::parser::MessageHandler;
+use crate::{Demo, ParserState};
+use crate::{DemoParser, MessageType};
 use fnv::FnvHashMap;
 use inflector::Inflector;
 use lazy_static::lazy_static;
 use proc_macro2::{Ident, Span, TokenStream};
 use quote::quote;
-use tf_demo_parser::demo::gameevent_gen::get_sizes;
-use tf_demo_parser::demo::gamevent::{GameEventDefinition, GameEventValueType};
-use tf_demo_parser::demo::parser::MessageHandler;
-use tf_demo_parser::{Demo, ParserState};
-use tf_demo_parser::{DemoParser, MessageType};
 
 struct GameEventAnalyser;
 
diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs
new file mode 100644
index 0000000..bbbbc2c
--- /dev/null
+++ b/src/codegen/mod.rs
@@ -0,0 +1,2 @@
+pub mod gameevent;
+pub mod propnames;
diff --git a/codegen/src/propnames.rs b/src/codegen/propnames.rs
similarity index 95%
rename from codegen/src/propnames.rs
rename to src/codegen/propnames.rs
index e8bdefa..9184a3f 100644
--- a/codegen/src/propnames.rs
+++ b/src/codegen/propnames.rs
@@ -1,11 +1,11 @@
+use crate::demo::packet::datatable::{ParseSendTable, SendTableName, ServerClass};
+use crate::demo::parser::MessageHandler;
+use crate::demo::sendprop::{SendPropIdentifier, SendPropName};
+use crate::{Demo, DemoParser, MessageType, ParserState};
 use fnv::FnvHashMap;
 use proc_macro2::TokenStream;
 use quote::quote;
 use std::collections::HashMap;
-use tf_demo_parser::demo::packet::datatable::{ParseSendTable, SendTableName, ServerClass};
-use tf_demo_parser::demo::parser::MessageHandler;
-use tf_demo_parser::demo::sendprop::{SendPropIdentifier, SendPropName};
-use tf_demo_parser::{Demo, DemoParser, MessageType, ParserState};
 
 struct PropInfo {
     identifier: SendPropIdentifier,
diff --git a/src/lib.rs b/src/lib.rs
index ce984a6..1d5f8d1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,6 +9,8 @@ pub use crate::demo::{
     Demo, Stream,
 };
 
+#[cfg(feature = "codegen")]
+pub mod codegen;
 pub(crate) mod consthash;
 pub mod demo;
 pub(crate) mod nullhasher;