diff --git a/rlbot_flat/Cargo.toml b/rlbot_flat/Cargo.toml
index 2af30f5..0135cd5 100644
--- a/rlbot_flat/Cargo.toml
+++ b/rlbot_flat/Cargo.toml
@@ -8,6 +8,7 @@ license-file.workspace = true
 planus = { git = "https://github.com/swz-git/planus", rev = "a0b1fbf" }
 serde = { version = "1.0.210", features = ["derive"] }
 glam = { version = "0.30.0", optional = true }
+ts-rs = { version = "11.1.0", optional = true }
 
 [build-dependencies]
 planus-translation = { git = "https://github.com/swz-git/planus", rev = "a0b1fbf" }
@@ -19,3 +20,4 @@ fluent-uri = "0.3.2"
 [features]
 default = ["glam"]
 glam = ["dep:glam"]
+dts = ["dep:ts-rs"]
diff --git a/rlbot_flat/build.rs b/rlbot_flat/build.rs
index e68349b..af0001f 100644
--- a/rlbot_flat/build.rs
+++ b/rlbot_flat/build.rs
@@ -4,5 +4,7 @@ fn main() -> eyre::Result<()> {
     println!("cargo:rerun-if-changed=build.rs");
     println!("cargo:rerun-if-changed=codegen");
 
+    println!("cargo:rerun-if-env-changed=CARGO_FEATURE_DTS");
+
     codegen::main()
 }
diff --git a/rlbot_flat/codegen/mod.rs b/rlbot_flat/codegen/mod.rs
index 94c5e80..979d81a 100644
--- a/rlbot_flat/codegen/mod.rs
+++ b/rlbot_flat/codegen/mod.rs
@@ -62,9 +62,12 @@ pub fn main() -> eyre::Result<()> {
         }
     }
 
-    let generated_planus = // No idea why planus renames RLBot to RlBot but this fixes it
+    let mut generated_planus = // No idea why planus renames RLBot to RlBot but this fixes it
         planus_codegen::generate_rust(&declarations)?.replace("RlBot", "RLBot");
 
+    #[cfg(feature = "dts")]
+    insert_ts_rs_macros(&mut generated_planus)?;
+
     let generated_custom = generate_custom(declarations.declarations.iter().filter(|x| {
         x.0.0
             .last()
@@ -93,6 +96,37 @@ pub fn main() -> eyre::Result<()> {
     Ok(())
 }
 
+fn insert_ts_rs_macros(generated_planus: &mut String) -> eyre::Result<()> {
+    // the TS derive macro depends on prelude to exist
+    *generated_planus = generated_planus.replace("#[no_implicit_prelude]", "");
+    let mut offset = 0;
+    while let Some(start_rel) = generated_planus[offset..].find("#[derive(") {
+        let start_abs = offset + start_rel;
+        if let Some(end_rel) = generated_planus[start_abs..].find(")]") {
+            let end_abs = start_abs + end_rel + 2;
+            if let Some(pos) = generated_planus[start_abs..end_abs].find("::serde::Serialize") {
+                // let line_start = generated_planus[..start_abs]
+                //     .rfind('\n')
+                //     .map(|i| i + 1)
+                //     .unwrap_or(0);
+                // let indent = generated_planus[line_start..start_abs].to_owned();
+                let macro_insert = "::ts_rs::TS, ";
+                generated_planus.insert_str(start_abs + pos, macro_insert);
+                let new_end_abs = end_abs + macro_insert.len();
+                // let replacement = format!("\n{indent}#[ts(export)]");
+                let replacement = format!("");
+                generated_planus.insert_str(new_end_abs, &replacement);
+                offset = new_end_abs + replacement.len();
+            } else {
+                offset = end_abs;
+            }
+        } else {
+            break;
+        }
+    }
+    Ok(())
+}
+
 fn docstrings_iter_mut(d: &mut Docstrings) -> impl Iterator<Item = &mut String> {
     d.docstrings.iter_mut().map(|x| &mut x.value)
 }