diff --git a/package-lock.json b/package-lock.json
index b78c4fe510..4ee83afc96 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -156,6 +156,7 @@
         "@types/friendly-words": "^1.2.2",
         "@types/jest": "^29.5.14",
         "@types/node": "^16.18.126",
+        "@types/passport": "^1.0.17",
         "@types/react": "^16.14.0",
         "@types/react-dom": "^16.9.25",
         "@types/react-router-dom": "^5.3.3",
@@ -14324,6 +14325,16 @@
       "resolved": "https://registry.npmjs.org/@types/parse-json/-/parse-json-4.0.0.tgz",
       "integrity": "sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA=="
     },
+    "node_modules/@types/passport": {
+      "version": "1.0.17",
+      "resolved": "https://registry.npmjs.org/@types/passport/-/passport-1.0.17.tgz",
+      "integrity": "sha512-aciLyx+wDwT2t2/kJGJR2AEeBz0nJU4WuRX04Wu9Dqc5lSUtwu0WERPHYsLhF9PtseiAMPBGNUOtFjxZ56prsg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/express": "*"
+      }
+    },
     "node_modules/@types/pretty-hrtime": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/@types/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz",
@@ -50746,6 +50757,15 @@
       "resolved": "https://registry.npmjs.org/@types/parse-json/-/parse-json-4.0.0.tgz",
       "integrity": "sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA=="
     },
+    "@types/passport": {
+      "version": "1.0.17",
+      "resolved": "https://registry.npmjs.org/@types/passport/-/passport-1.0.17.tgz",
+      "integrity": "sha512-aciLyx+wDwT2t2/kJGJR2AEeBz0nJU4WuRX04Wu9Dqc5lSUtwu0WERPHYsLhF9PtseiAMPBGNUOtFjxZ56prsg==",
+      "dev": true,
+      "requires": {
+        "@types/express": "*"
+      }
+    },
     "@types/pretty-hrtime": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/@types/pretty-hrtime/-/pretty-hrtime-1.0.3.tgz",
diff --git a/package.json b/package.json
index 866c5aaf62..69dcc7de00 100644
--- a/package.json
+++ b/package.json
@@ -138,6 +138,7 @@
     "@types/friendly-words": "^1.2.2",
     "@types/jest": "^29.5.14",
     "@types/node": "^16.18.126",
+    "@types/passport": "^1.0.17",
     "@types/react": "^16.14.0",
     "@types/react-dom": "^16.9.25",
     "@types/react-router-dom": "^5.3.3",
diff --git a/server/routes/api.routes.js b/server/routes/api.routes.ts
similarity index 89%
rename from server/routes/api.routes.js
rename to server/routes/api.routes.ts
index 60be3494cf..cb1b2fec2f 100644
--- a/server/routes/api.routes.js
+++ b/server/routes/api.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 import passport from 'passport';
 import * as ProjectController from '../controllers/project.controller';
 
-const router = new Router();
+const router = Router();
 
 router.get(
   '/:username/sketches',
@@ -24,4 +24,5 @@ router.delete(
   ProjectController.deleteProject
 );
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/asset.routes.js b/server/routes/asset.routes.ts
similarity index 89%
rename from server/routes/asset.routes.js
rename to server/routes/asset.routes.ts
index ab3f52a083..381779386e 100644
--- a/server/routes/asset.routes.js
+++ b/server/routes/asset.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 import { getProjectAsset } from '../controllers/project.controller';
 import { getFileContent } from '../controllers/file.controller';
 
-const router = new Router();
+const router = Router();
 
 router.get('/:username/sketches/:project_id/*', getProjectAsset);
 router.get('/full/:project_id/*', getProjectAsset);
@@ -14,4 +14,5 @@ router.get('/:username/embed/:project_id/*', getProjectAsset);
 
 router.get('/sketches/:project_id/assets/*?', getFileContent);
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/aws.routes.js b/server/routes/aws.routes.ts
similarity index 86%
rename from server/routes/aws.routes.js
rename to server/routes/aws.routes.ts
index 7a1c6d7063..91a5751866 100644
--- a/server/routes/aws.routes.js
+++ b/server/routes/aws.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 import * as AWSController from '../controllers/aws.controller';
 import isAuthenticated from '../utils/isAuthenticated';
 
-const router = new Router();
+const router = Router();
 
 router.post('/S3/sign', isAuthenticated, AWSController.signS3);
 router.post(
@@ -17,4 +17,5 @@ router.delete(
 );
 router.get('/S3/objects', AWSController.listObjectsInS3ForUserRequestHandler);
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/collection.routes.js b/server/routes/collection.routes.ts
similarity index 92%
rename from server/routes/collection.routes.js
rename to server/routes/collection.routes.ts
index 31316d6f5b..4ec02961b1 100644
--- a/server/routes/collection.routes.js
+++ b/server/routes/collection.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 import * as CollectionController from '../controllers/collection.controller';
 import isAuthenticated from '../utils/isAuthenticated';
 
-const router = new Router();
+const router = Router();
 
 // List collections
 router.get(
@@ -41,4 +41,5 @@ router.delete(
   CollectionController.removeProjectFromCollection
 );
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/embed.routes.js b/server/routes/embed.routes.ts
similarity index 92%
rename from server/routes/embed.routes.js
rename to server/routes/embed.routes.ts
index d7f858ee7c..fee2a7840c 100644
--- a/server/routes/embed.routes.js
+++ b/server/routes/embed.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 
 const editorUrl = process.env.EDITOR_URL;
 
-const router = new Router();
+const router = Router();
 
 // CAT redirecting these temporarily to editor URLS to prevent phishing
 // router.get('/:username/embed/:project_id', EmbedController.serveProject);
@@ -21,4 +21,5 @@ router.get('/embed/:project_id', (req, res) => {
   res.redirect(301, `${editorUrl}/full/${projectId}`);
 });
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/file.routes.js b/server/routes/file.routes.ts
similarity index 83%
rename from server/routes/file.routes.js
rename to server/routes/file.routes.ts
index 4f545d0862..c0bc434917 100644
--- a/server/routes/file.routes.js
+++ b/server/routes/file.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 import * as FileController from '../controllers/file.controller';
 import isAuthenticated from '../utils/isAuthenticated';
 
-const router = new Router();
+const router = Router();
 
 router.post(
   '/projects/:project_id/files',
@@ -15,4 +15,5 @@ router.delete(
   FileController.deleteFile
 );
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/passport.routes.js b/server/routes/passport.routes.js
deleted file mode 100644
index 2bc639239c..0000000000
--- a/server/routes/passport.routes.js
+++ /dev/null
@@ -1,35 +0,0 @@
-import Router from 'express';
-import passport from 'passport';
-
-const router = new Router();
-
-const authenticateOAuth = (service) => (req, res, next) => {
-  passport.authenticate(service, { failureRedirect: '/login' }, (err, user) => {
-    if (err) {
-      // use query string param to show error;
-      res.redirect(`/account?error=${service}`);
-      return;
-    }
-
-    if (!user) {
-      res.redirect(`/account?error=${service}NoUser`);
-      return;
-    }
-
-    req.logIn(user, (loginErr) => {
-      if (loginErr) {
-        next(loginErr);
-        return;
-      }
-      res.redirect('/');
-    });
-  })(req, res, next);
-};
-
-router.get('/auth/github', passport.authenticate('github'));
-router.get('/auth/github/callback', authenticateOAuth('github'));
-
-router.get('/auth/google', passport.authenticate('google'));
-router.get('/auth/google/callback', authenticateOAuth('google'));
-
-export default router;
diff --git a/server/routes/passport.routes.ts b/server/routes/passport.routes.ts
new file mode 100644
index 0000000000..bde3bc2a2f
--- /dev/null
+++ b/server/routes/passport.routes.ts
@@ -0,0 +1,44 @@
+import { Router, Request, Response, NextFunction } from 'express';
+import passport from 'passport';
+
+const router = Router();
+
+const authenticateOAuth = (service: string) => (
+  req: Request,
+  res: Response,
+  next: NextFunction
+) => {
+  passport.authenticate(
+    service,
+    { failureRedirect: '/login' },
+    (err: any, user: any) => {
+      if (err) {
+        // use query string param to show error;
+        res.redirect(`/account?error=${service}`);
+        return;
+      }
+
+      if (!user) {
+        res.redirect(`/account?error=${service}NoUser`);
+        return;
+      }
+
+      req.logIn(user, (loginErr) => {
+        if (loginErr) {
+          next(loginErr);
+          return;
+        }
+        res.redirect('/');
+      });
+    }
+  )(req, res, next);
+};
+
+router.get('/auth/github', passport.authenticate('github'));
+router.get('/auth/github/callback', authenticateOAuth('github'));
+
+router.get('/auth/google', passport.authenticate('google'));
+router.get('/auth/google/callback', authenticateOAuth('google'));
+
+// eslint-disable-next-line import/no-default-export
+export default router;
diff --git a/server/routes/project.routes.js b/server/routes/project.routes.ts
similarity index 91%
rename from server/routes/project.routes.js
rename to server/routes/project.routes.ts
index 0610f929ab..26f6ee9501 100644
--- a/server/routes/project.routes.js
+++ b/server/routes/project.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 import * as ProjectController from '../controllers/project.controller';
 import isAuthenticated from '../utils/isAuthenticated';
 
-const router = new Router();
+const router = Router();
 
 router.post('/projects', isAuthenticated, ProjectController.createProject);
 
@@ -28,4 +28,5 @@ router.get('/projects/:project_id/zip', ProjectController.downloadProjectAsZip);
 
 router.patch('/project/visibility', ProjectController.changeProjectVisibility);
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/redirectEmbed.routes.js b/server/routes/redirectEmbed.routes.ts
similarity index 92%
rename from server/routes/redirectEmbed.routes.js
rename to server/routes/redirectEmbed.routes.ts
index 7f60633ea6..2747cd1edc 100644
--- a/server/routes/redirectEmbed.routes.js
+++ b/server/routes/redirectEmbed.routes.ts
@@ -1,6 +1,6 @@
 import { Router } from 'express';
 
-const router = new Router();
+const router = Router();
 
 router.get('/:username/embed/:project_id', (req, res) => {
   const { username, project_id: projectId } = req.params;
@@ -23,4 +23,5 @@ router.get('/embed/:project_id', (req, res) => {
   res.redirect(301, `/full/${projectId}`);
 });
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/server.routes.js b/server/routes/server.routes.js
index b6aeeca286..b0abba285d 100644
--- a/server/routes/server.routes.js
+++ b/server/routes/server.routes.js
@@ -8,13 +8,7 @@ import {
 } from '../controllers/project.controller';
 import { collectionForUserExists } from '../controllers/collection.controller';
 
-const router = new Router();
-
-// const fallback404 = (res) => (exists) =>
-//   exists ? res.send(renderIndex()) : get404Sketch((html) => res.send(html));
-
-// this is intended to be a temporary file
-// until i figure out isomorphic rendering
+const router = Router();
 
 router.get('/', (req, res) => {
   res.send(renderIndex());
@@ -159,4 +153,5 @@ router.get('/code-of-conduct', (req, res) => {
   res.send(renderIndex());
 });
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/session.routes.js b/server/routes/session.routes.ts
similarity index 79%
rename from server/routes/session.routes.js
rename to server/routes/session.routes.ts
index a153edb189..7383288e0f 100644
--- a/server/routes/session.routes.js
+++ b/server/routes/session.routes.ts
@@ -1,7 +1,7 @@
 import { Router } from 'express';
 import * as SessionController from '../controllers/session.controller';
 
-const router = new Router();
+const router = Router();
 
 router.post('/login', SessionController.createSession);
 
@@ -9,4 +9,5 @@ router.get('/session', SessionController.getSession);
 
 router.get('/logout', SessionController.destroySession);
 
+// eslint-disable-next-line import/no-default-export
 export default router;
diff --git a/server/routes/user.routes.js b/server/routes/user.routes.ts
similarity index 93%
rename from server/routes/user.routes.js
rename to server/routes/user.routes.ts
index a507c328bd..532ade8923 100644
--- a/server/routes/user.routes.js
+++ b/server/routes/user.routes.ts
@@ -2,7 +2,7 @@ import { Router } from 'express';
 import * as UserController from '../controllers/user.controller';
 import isAuthenticated from '../utils/isAuthenticated';
 
-const router = new Router();
+const router = Router();
 
 router.post('/signup', UserController.createUser);
 
@@ -39,4 +39,5 @@ router.get('/verify', UserController.verifyEmail);
 router.delete('/auth/github', UserController.unlinkGithub);
 router.delete('/auth/google', UserController.unlinkGoogle);
 
+// eslint-disable-next-line import/no-default-export
 export default router;