diff --git a/src/api/sets/types.ts b/src/api/sets/types.ts
index b29ba56b..bfe277fb 100644
--- a/src/api/sets/types.ts
+++ b/src/api/sets/types.ts
@@ -1,14 +1,14 @@
 import type { Database } from "@/integrations/supabase/types";
 import type { Artist } from "@/api/artists/types";
 import { asEnumValue } from "@/lib/enum";
-
-export const SET_TYPES = ["music", "workshop", "performance", "other"] as const;
-
-export type SetType = (typeof SET_TYPES)[number];
-
-export function asSetType(value: string | null): SetType | null {
-  return asEnumValue(SET_TYPES, value);
-}
+import {
+  SET_TYPES,
+  asSetType,
+  type SetType,
+} from "@functions/_shared/setTypes.ts";
+
+export { SET_TYPES, asSetType };
+export type { SetType };
 
 export function isNonMusicSetType(
   setType: SetType | null,
diff --git a/supabase/functions/_shared/setTypes.ts b/supabase/functions/_shared/setTypes.ts
index 15b4960c..f0c6fb6b 100644
--- a/supabase/functions/_shared/setTypes.ts
+++ b/supabase/functions/_shared/setTypes.ts
@@ -1,6 +1,6 @@
 /**
- * Mirrors SET_TYPES in src/api/sets/types.ts and the sets_set_type_check
- * constraint. Keep the three in sync when adding a type.
+ * Single TypeScript definition of set types: src/api/sets/types.ts re-exports
+ * it, so this file must stay dependency-free (Deno can't resolve `@/` aliases).
  */
 export const SET_TYPES = ["music", "workshop", "performance", "other"] as const;
 
diff --git a/tsconfig.app.json b/tsconfig.app.json
index 6650053e..f8d6e487 100644
--- a/tsconfig.app.json
+++ b/tsconfig.app.json
@@ -23,7 +23,8 @@
 
     "baseUrl": ".",
     "paths": {
-      "@/*": ["./src/*"]
+      "@/*": ["./src/*"],
+      "@functions/*": ["./supabase/functions/*"]
     }
   },
   "include": ["src"]
diff --git a/tsconfig.json b/tsconfig.json
index c04f96c2..cde71290 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,7 +7,8 @@
   "compilerOptions": {
     "baseUrl": ".",
     "paths": {
-      "@/*": ["./src/*"]
+      "@/*": ["./src/*"],
+      "@functions/*": ["./supabase/functions/*"]
     },
     "skipLibCheck": true,
     "allowJs": true,
diff --git a/vite.config.ts b/vite.config.ts
index b878ca33..af51a426 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -90,6 +90,7 @@ export default defineConfig(({ mode }) => ({
   resolve: {
     alias: {
       "@": path.resolve(__dirname, "./src"),
+      "@functions": path.resolve(__dirname, "./supabase/functions"),
     },
   },
 }));
diff --git a/vitest.config.ts b/vitest.config.ts
index e95aa9b5..68d797ca 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -25,6 +25,7 @@ export default defineConfig({
   resolve: {
     alias: {
       "@": path.resolve(__dirname, "./src"),
+      "@functions": path.resolve(__dirname, "./supabase/functions"),
     },
   },
 });
diff --git a/vitest.integration.config.ts b/vitest.integration.config.ts
index 38cafb11..27f47af3 100644
--- a/vitest.integration.config.ts
+++ b/vitest.integration.config.ts
@@ -19,6 +19,7 @@ export default defineConfig({
   resolve: {
     alias: {
       "@": path.resolve(__dirname, "./src"),
+      "@functions": path.resolve(__dirname, "./supabase/functions"),
     },
   },
 });