diff --git a/blueprints/addon/files/local-types/index.ts b/blueprints/addon/files/local-types/index.ts
new file mode 100644
index 0000000000..2c797ac547
--- /dev/null
+++ b/blueprints/addon/files/local-types/index.ts
@@ -0,0 +1,12 @@
+<% if (typescript) { %>
+// This "side-effect"-type import provides auto-complete, go-to-def, etc. for
+// Ember's internals throughout your application, so don't remove it!
+import 'ember-source/types';
+<% } else { %>
+// This "type definition" import comment provides auto-complete, go-to-def, etc.
+// for Ember's internals throughout your application, so don't remove it, even
+// if you do not use TypeScript at all.
+/**
+  @typedef {import('ember-source/types')} Types
+*/
+<% } %>
diff --git a/blueprints/app/files/app/app.ts b/blueprints/app/files/app/app.ts
index 9efa116333..fbf7de36f2 100644
--- a/blueprints/app/files/app/app.ts
+++ b/blueprints/app/files/app/app.ts
@@ -10,3 +10,15 @@ export default class App extends Application {
 }
 
 loadInitializers(App, config.modulePrefix);
+
+<% if (typescript) { %>
+// This "side-effect"-type import provides auto-complete, go-to-def, etc. for
+// Ember's internals throughout your application, so don't remove it!
+import 'ember-source/types';
+<% } else { %>
+// This "type definition" import comment provides auto-complete, go-to-def, etc.
+// for Ember's internals throughout your application, so don't remove it!
+/**
+  @typedef {import('ember-source/types')} Types
+*/
+<% } %>
diff --git a/yarn.lock b/yarn.lock
index c1b0e787c6..9dcb772d8b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -22,6 +22,11 @@
   resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.21.4.tgz#457ffe647c480dff59c2be092fc3acf71195c87f"
   integrity sha512-/DYyDpeCfaVinT40FPGdkkb+lYSKvsVuMjDAG7jPOWWiM1ibOaB9CXJAlc4d1QpP/U2q2P9jbrSlClKSErd55g==
 
+"@babel/compat-data@^7.21.5":
+  version "7.21.7"
+  resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.21.7.tgz#61caffb60776e49a57ba61a88f02bedd8714f6bc"
+  integrity sha512-KYMqFYTaenzMK4yUtf4EW9wc4N9ef80FsbMtkwool5zpwl4YrT1SdWYSTRcT94KO4hannogdS+LxY7L+arP3gA==
+
 "@babel/core@^7.16.10", "@babel/core@^7.7.5":
   version "7.21.0"
   resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.21.0.tgz#1341aefdcc14ccc7553fcc688dd8986a2daffc13"
@@ -64,6 +69,16 @@
     json5 "^2.2.2"
     semver "^6.3.0"
 
+"@babel/generator@^7.21.0", "@babel/generator@^7.21.5":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.21.5.tgz#c0c0e5449504c7b7de8236d99338c3e2a340745f"
+  integrity sha512-SrKK/sRv8GesIW1bDagf9cCG38IOMYZusoe1dfg0D8aiUe3Amvoj1QtjTPAWcfrZFvIwlleLb0gxzQidL9w14w==
+  dependencies:
+    "@babel/types" "^7.21.5"
+    "@jridgewell/gen-mapping" "^0.3.2"
+    "@jridgewell/trace-mapping" "^0.3.17"
+    jsesc "^2.5.1"
+
 "@babel/generator@^7.21.4":
   version "7.21.4"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.21.4.tgz#64a94b7448989f421f919d5239ef553b37bb26bc"
@@ -81,6 +96,17 @@
   dependencies:
     "@babel/types" "^7.18.6"
 
+"@babel/helper-compilation-targets@^7.20.7":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.21.5.tgz#631e6cc784c7b660417421349aac304c94115366"
+  integrity sha512-1RkbFGUKex4lvsB9yhIfWltJM5cZKUftB2eNajaDv3dCMEp49iBG0K14uH8NnX9IPux2+mK7JGEOB0jn48/J6w==
+  dependencies:
+    "@babel/compat-data" "^7.21.5"
+    "@babel/helper-validator-option" "^7.21.0"
+    browserslist "^4.21.3"
+    lru-cache "^5.1.1"
+    semver "^6.3.0"
+
 "@babel/helper-compilation-targets@^7.21.4":
   version "7.21.4"
   resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.21.4.tgz#770cd1ce0889097ceacb99418ee6934ef0572656"
@@ -110,6 +136,11 @@
   resolved "https://registry.yarnpkg.com/@babel/helper-environment-visitor/-/helper-environment-visitor-7.18.9.tgz#0c0cee9b35d2ca190478756865bb3528422f51be"
   integrity sha512-3r/aACDJ3fhQ/EVgFy0hpj8oHyHpQc+LPtJoY9SzTThAsStm4Ptegq92vqKoE3vD706ZVFWITnMnxucw+S9Ipg==
 
+"@babel/helper-environment-visitor@^7.21.5":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-environment-visitor/-/helper-environment-visitor-7.21.5.tgz#c769afefd41d171836f7cb63e295bedf689d48ba"
+  integrity sha512-IYl4gZ3ETsWocUWgsFZLM5i1BYx9SoemminVEXadgLBa9TdeorzgLKm8wWLA6J1N/kT3Kch8XIk1laNzYoHKvQ==
+
 "@babel/helper-function-name@^7.19.0":
   version "7.19.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.19.0.tgz#941574ed5390682e872e52d3f38ce9d1bef4648c"
@@ -147,6 +178,27 @@
   dependencies:
     "@babel/types" "^7.18.6"
 
+"@babel/helper-module-imports@^7.21.4":
+  version "7.21.4"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.21.4.tgz#ac88b2f76093637489e718a90cec6cf8a9b029af"
+  integrity sha512-orajc5T2PsRYUN3ZryCEFeMDYwyw09c/pZeaQEZPH0MpKzSvn3e0uXsDBu3k03VI+9DBiRo+l22BfKTpKwa/Wg==
+  dependencies:
+    "@babel/types" "^7.21.4"
+
+"@babel/helper-module-transforms@^7.21.0":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.21.5.tgz#d937c82e9af68d31ab49039136a222b17ac0b420"
+  integrity sha512-bI2Z9zBGY2q5yMHoBvJ2a9iX3ZOAzJPm7Q8Yz6YeoUjU/Cvhmi2G4QyTNyPBqqXSgTjUxRg3L0xV45HvkNWWBw==
+  dependencies:
+    "@babel/helper-environment-visitor" "^7.21.5"
+    "@babel/helper-module-imports" "^7.21.4"
+    "@babel/helper-simple-access" "^7.21.5"
+    "@babel/helper-split-export-declaration" "^7.18.6"
+    "@babel/helper-validator-identifier" "^7.19.1"
+    "@babel/template" "^7.20.7"
+    "@babel/traverse" "^7.21.5"
+    "@babel/types" "^7.21.5"
+
 "@babel/helper-module-transforms@^7.21.2":
   version "7.21.2"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.21.2.tgz#160caafa4978ac8c00ac66636cb0fa37b024e2d2"
@@ -191,6 +243,13 @@
   dependencies:
     "@babel/types" "^7.20.2"
 
+"@babel/helper-simple-access@^7.21.5":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-simple-access/-/helper-simple-access-7.21.5.tgz#d697a7971a5c39eac32c7e63c0921c06c8a249ee"
+  integrity sha512-ENPDAMC1wAjR0uaCUwliBdiSl1KBJAVnMTzXqi64c2MG8MPR6ii4qf7bSXDqSFbr4W6W028/rf5ivoHop5/mkg==
+  dependencies:
+    "@babel/types" "^7.21.5"
+
 "@babel/helper-split-export-declaration@^7.18.6":
   version "7.18.6"
   resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.18.6.tgz#7367949bc75b20c6d5a5d4a97bba2824ae8ef075"
@@ -203,6 +262,11 @@
   resolved "https://registry.yarnpkg.com/@babel/helper-string-parser/-/helper-string-parser-7.19.4.tgz#38d3acb654b4701a9b77fb0615a96f775c3a9e63"
   integrity sha512-nHtDoQcuqFmwYNYPz3Rah5ph2p8PFeFCsZk9A/48dPc/rGocJ5J3hAAZ7pb76VWX3fZKu+uEr/FhH5jLx7umrw==
 
+"@babel/helper-string-parser@^7.21.5":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-string-parser/-/helper-string-parser-7.21.5.tgz#2b3eea65443c6bdc31c22d037c65f6d323b6b2bd"
+  integrity sha512-5pTUx3hAJaZIdW99sJ6ZUUgWq/Y+Hja7TowEnLNMm1VivRgZQL3vpBY3qUACVsvw+yQU6+YgfBVmcbLaZtrA1w==
+
 "@babel/helper-validator-identifier@^7.18.6", "@babel/helper-validator-identifier@^7.19.1":
   version "7.19.1"
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.19.1.tgz#7eea834cf32901ffdc1a7ee555e2f9c27e249ca2"
@@ -236,6 +300,11 @@
   resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.21.4.tgz#94003fdfc520bbe2875d4ae557b43ddb6d880f17"
   integrity sha512-alVJj7k7zIxqBZ7BTRhz0IqJFxW1VJbm6N8JbcYhQ186df9ZBPbZBmWSqAMXwHGsCJdYks7z/voa3ibiS5bCIw==
 
+"@babel/parser@^7.21.0", "@babel/parser@^7.21.5":
+  version "7.21.8"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.21.8.tgz#642af7d0333eab9c0ad70b14ac5e76dbde7bfdf8"
+  integrity sha512-6zavDGdzG3gUqAdWvlLFfk+36RilI+Pwyuuh7HItyeScCWP3k6i8vKclAQ0bM/0y/Kz/xiwvxhMv9MgTJP5gmA==
+
 "@babel/plugin-syntax-decorators@^7.16.7":
   version "7.19.0"
   resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-decorators/-/plugin-syntax-decorators-7.19.0.tgz#5f13d1d8fce96951bea01a10424463c9a5b3a599"
@@ -291,6 +360,22 @@
     debug "^4.1.0"
     globals "^11.1.0"
 
+"@babel/traverse@^7.21.5":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.21.5.tgz#ad22361d352a5154b498299d523cf72998a4b133"
+  integrity sha512-AhQoI3YjWi6u/y/ntv7k48mcrCXmus0t79J9qPNlk/lAsFlCiJ047RmbfMOawySTHtywXhbXgpx/8nXMYd+oFw==
+  dependencies:
+    "@babel/code-frame" "^7.21.4"
+    "@babel/generator" "^7.21.5"
+    "@babel/helper-environment-visitor" "^7.21.5"
+    "@babel/helper-function-name" "^7.21.0"
+    "@babel/helper-hoist-variables" "^7.18.6"
+    "@babel/helper-split-export-declaration" "^7.18.6"
+    "@babel/parser" "^7.21.5"
+    "@babel/types" "^7.21.5"
+    debug "^4.1.0"
+    globals "^11.1.0"
+
 "@babel/types@^7.18.6", "@babel/types@^7.18.9", "@babel/types@^7.19.0", "@babel/types@^7.20.2", "@babel/types@^7.20.7", "@babel/types@^7.21.0", "@babel/types@^7.21.2", "@babel/types@^7.21.4":
   version "7.21.4"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.21.4.tgz#2d5d6bb7908699b3b416409ffd3b5daa25b030d4"
@@ -300,6 +385,15 @@
     "@babel/helper-validator-identifier" "^7.19.1"
     to-fast-properties "^2.0.0"
 
+"@babel/types@^7.21.5":
+  version "7.21.5"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.21.5.tgz#18dfbd47c39d3904d5db3d3dc2cc80bedb60e5b6"
+  integrity sha512-m4AfNvVF2mVC/F7fDEdH2El3HzUg9It/XsCxZiOTTA3m3qYfcSVSbTfM6Q9xG+hYDniZssYhlXKKUMD5m8tF4Q==
+  dependencies:
+    "@babel/helper-string-parser" "^7.21.5"
+    "@babel/helper-validator-identifier" "^7.19.1"
+    to-fast-properties "^2.0.0"
+
 "@cnakazawa/watch@^1.0.3":
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/@cnakazawa/watch/-/watch-1.0.4.tgz#f864ae85004d0fcab6f50be9141c4da368d1656a"