diff --git a/package.json b/package.json
index d10ee4ee4e..3c22af0c62 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,7 @@
   },
   "version": "1.21.0",
   "dependencies": {
+    "@backstage/errors": "workspace:^",
     "@manypkg/get-packages": "^1.1.3",
     "@useoptic/optic": "^0.50.10"
   },
diff --git a/packages/app-next/package.json b/packages/app-next/package.json
index a431a5d342..e19423e7a1 100644
--- a/packages/app-next/package.json
+++ b/packages/app-next/package.json
@@ -10,7 +10,6 @@
     "@backstage/app-defaults": "workspace:^",
     "@backstage/catalog-model": "workspace:^",
     "@backstage/cli": "workspace:^",
-    "@backstage/config": "workspace:^",
     "@backstage/core-app-api": "workspace:^",
     "@backstage/core-compat-api": "workspace:^",
     "@backstage/core-components": "workspace:^",
diff --git a/packages/backend-openapi-utils/package.json b/packages/backend-openapi-utils/package.json
index 8d7818ab87..cfcca990a5 100644
--- a/packages/backend-openapi-utils/package.json
+++ b/packages/backend-openapi-utils/package.json
@@ -38,7 +38,6 @@
   ],
   "dependencies": {
     "@backstage/backend-plugin-api": "workspace:^",
-    "@backstage/config": "workspace:^",
     "@backstage/errors": "workspace:^",
     "@types/express": "^4.17.6",
     "@types/express-serve-static-core": "^4.17.5",
diff --git a/packages/frontend-plugin-api/package.json b/packages/frontend-plugin-api/package.json
index 08b3906fcc..2dd906eacb 100644
--- a/packages/frontend-plugin-api/package.json
+++ b/packages/frontend-plugin-api/package.json
@@ -39,7 +39,6 @@
     "react-router-dom": "6.0.0-beta.0 || ^6.3.0"
   },
   "dependencies": {
-    "@backstage/config": "workspace:^",
     "@backstage/core-components": "workspace:^",
     "@backstage/core-plugin-api": "workspace:^",
     "@backstage/types": "workspace:^",
diff --git a/plugins/auth-backend-module-oauth2-provider/package.json b/plugins/auth-backend-module-oauth2-provider/package.json
index 616fce6ec5..2f032bf492 100644
--- a/plugins/auth-backend-module-oauth2-provider/package.json
+++ b/plugins/auth-backend-module-oauth2-provider/package.json
@@ -25,7 +25,6 @@
   "dependencies": {
     "@backstage/backend-plugin-api": "workspace:^",
     "@backstage/plugin-auth-node": "workspace:^",
-    "express": "^4.18.2",
     "passport": "^0.7.0",
     "passport-oauth2": "^1.6.1"
   },
diff --git a/plugins/auth-backend-module-pinniped-provider/package.json b/plugins/auth-backend-module-pinniped-provider/package.json
index ac656307d6..4f8a1b3b59 100644
--- a/plugins/auth-backend-module-pinniped-provider/package.json
+++ b/plugins/auth-backend-module-pinniped-provider/package.json
@@ -36,7 +36,6 @@
     "@backstage/plugin-auth-backend": "workspace:^",
     "cookie-parser": "^1.4.6",
     "express": "^4.18.2",
-    "express-promise-router": "^4.1.1",
     "express-session": "^1.17.3",
     "jose": "^4.14.6",
     "msw": "^1.3.0",
diff --git a/plugins/catalog-backend-module-aws/package.json b/plugins/catalog-backend-module-aws/package.json
index d8f56ac7d2..292039f0bc 100644
--- a/plugins/catalog-backend-module-aws/package.json
+++ b/plugins/catalog-backend-module-aws/package.json
@@ -62,7 +62,6 @@
     "@backstage/plugin-catalog-common": "workspace:^",
     "@backstage/plugin-catalog-node": "workspace:^",
     "@backstage/plugin-kubernetes-common": "workspace:^",
-    "lodash": "^4.17.21",
     "p-limit": "^3.0.2",
     "uuid": "^8.0.0",
     "winston": "^3.2.1"
@@ -71,7 +70,6 @@
     "@aws-sdk/util-stream-node": "^3.350.0",
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^",
-    "@types/lodash": "^4.14.151",
     "aws-sdk-client-mock": "^3.0.0",
     "aws-sdk-client-mock-jest": "^3.0.0",
     "luxon": "^3.0.0",
diff --git a/plugins/catalog-backend-module-azure/package.json b/plugins/catalog-backend-module-azure/package.json
index e575807843..315a85aaa4 100644
--- a/plugins/catalog-backend-module-azure/package.json
+++ b/plugins/catalog-backend-module-azure/package.json
@@ -52,7 +52,6 @@
     "@backstage/integration": "workspace:^",
     "@backstage/plugin-catalog-common": "workspace:^",
     "@backstage/plugin-catalog-node": "workspace:^",
-    "lodash": "^4.17.21",
     "node-fetch": "^2.6.7",
     "uuid": "^8.0.0",
     "winston": "^3.2.1"
@@ -60,7 +59,6 @@
   "devDependencies": {
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^",
-    "@types/lodash": "^4.14.151",
     "luxon": "^3.0.0",
     "msw": "^1.0.0"
   },
diff --git a/plugins/catalog-backend-module-backstage-openapi/package.json b/plugins/catalog-backend-module-backstage-openapi/package.json
index f19929cbed..d0f103643a 100644
--- a/plugins/catalog-backend-module-backstage-openapi/package.json
+++ b/plugins/catalog-backend-module-backstage-openapi/package.json
@@ -31,8 +31,6 @@
     "@backstage/errors": "workspace:^",
     "@backstage/plugin-catalog-node": "workspace:^",
     "cross-fetch": "^4.0.0",
-    "express": "^4.17.1",
-    "express-promise-router": "^4.1.0",
     "lodash": "^4.17.21",
     "openapi-merge": "^1.3.2",
     "uuid": "^9.0.0",
diff --git a/plugins/catalog-backend-module-bitbucket/package.json b/plugins/catalog-backend-module-bitbucket/package.json
index 0d7361199b..e6b22fe58b 100644
--- a/plugins/catalog-backend-module-bitbucket/package.json
+++ b/plugins/catalog-backend-module-bitbucket/package.json
@@ -38,14 +38,12 @@
     "@backstage/integration": "workspace:^",
     "@backstage/plugin-bitbucket-cloud-common": "workspace:^",
     "@backstage/plugin-catalog-node": "workspace:^",
-    "lodash": "^4.17.21",
     "node-fetch": "^2.6.7",
     "winston": "^3.2.1"
   },
   "devDependencies": {
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^",
-    "@types/lodash": "^4.14.151",
     "msw": "^1.0.0"
   },
   "files": [
diff --git a/plugins/dynatrace/package.json b/plugins/dynatrace/package.json
index 802d1f1f11..fa2817ac34 100644
--- a/plugins/dynatrace/package.json
+++ b/plugins/dynatrace/package.json
@@ -49,8 +49,7 @@
     "@backstage/test-utils": "workspace:^",
     "@testing-library/dom": "^9.0.0",
     "@testing-library/jest-dom": "^6.0.0",
-    "@testing-library/react": "^14.0.0",
-    "express": "^4.18.1"
+    "@testing-library/react": "^14.0.0"
   },
   "files": [
     "dist",
diff --git a/plugins/pagerduty/package.json b/plugins/pagerduty/package.json
index 8afee1f115..da4f6587c2 100644
--- a/plugins/pagerduty/package.json
+++ b/plugins/pagerduty/package.json
@@ -44,7 +44,6 @@
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "4.0.0-alpha.61",
     "@types/react": "^16.13.1 || ^17.0.0",
-    "classnames": "^2.2.6",
     "luxon": "^3.0.0",
     "react-use": "^17.2.4"
   },
diff --git a/plugins/search-backend/package.json b/plugins/search-backend/package.json
index 8a49a5efa1..9643f436f2 100644
--- a/plugins/search-backend/package.json
+++ b/plugins/search-backend/package.json
@@ -56,7 +56,6 @@
     "@types/express": "^4.17.6",
     "dataloader": "^2.0.0",
     "express": "^4.17.1",
-    "express-promise-router": "^4.1.0",
     "lodash": "^4.17.21",
     "qs": "^6.10.1",
     "winston": "^3.2.1",
diff --git a/plugins/splunk-on-call/package.json b/plugins/splunk-on-call/package.json
index cc69bf96c1..67c5ce578c 100644
--- a/plugins/splunk-on-call/package.json
+++ b/plugins/splunk-on-call/package.json
@@ -42,7 +42,6 @@
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "4.0.0-alpha.61",
     "@types/react": "^16.13.1 || ^17.0.0",
-    "classnames": "^2.2.6",
     "luxon": "^3.0.0",
     "react-use": "^17.2.4"
   },
diff --git a/plugins/tech-insights-node/package.json b/plugins/tech-insights-node/package.json
index 2ab3629111..f4975a8a49 100644
--- a/plugins/tech-insights-node/package.json
+++ b/plugins/tech-insights-node/package.json
@@ -33,7 +33,6 @@
   },
   "dependencies": {
     "@backstage/backend-common": "workspace:^",
-    "@backstage/backend-tasks": "workspace:^",
     "@backstage/config": "workspace:^",
     "@backstage/plugin-tech-insights-common": "workspace:^",
     "@backstage/types": "workspace:^",
diff --git a/plugins/todo-backend/package.json b/plugins/todo-backend/package.json
index caeffdd437..19b6c841ac 100644
--- a/plugins/todo-backend/package.json
+++ b/plugins/todo-backend/package.json
@@ -40,7 +40,6 @@
     "@backstage/plugin-catalog-node": "workspace:^",
     "@types/express": "^4.17.6",
     "express": "^4.17.1",
-    "express-promise-router": "^4.1.0",
     "leasot": "^12.0.0",
     "winston": "^3.2.1",
     "yn": "^4.0.0"
diff --git a/yarn.lock b/yarn.lock
index 709d3c75bd..777c54173e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3350,7 +3350,6 @@ __metadata:
   dependencies:
     "@backstage/backend-plugin-api": "workspace:^"
     "@backstage/cli": "workspace:^"
-    "@backstage/config": "workspace:^"
     "@backstage/errors": "workspace:^"
     "@types/express": ^4.17.6
     "@types/express-serve-static-core": ^4.17.5
@@ -4077,7 +4076,6 @@ __metadata:
   resolution: "@backstage/frontend-plugin-api@workspace:packages/frontend-plugin-api"
   dependencies:
     "@backstage/cli": "workspace:^"
-    "@backstage/config": "workspace:^"
     "@backstage/core-components": "workspace:^"
     "@backstage/core-plugin-api": "workspace:^"
     "@backstage/frontend-app-api": "workspace:^"
@@ -4638,7 +4636,6 @@ __metadata:
     "@backstage/cli": "workspace:^"
     "@backstage/plugin-auth-backend": "workspace:^"
     "@backstage/plugin-auth-node": "workspace:^"
-    express: ^4.18.2
     passport: ^0.7.0
     passport-oauth2: ^1.6.1
     supertest: ^6.3.3
@@ -4688,7 +4685,6 @@ __metadata:
     "@backstage/plugin-auth-node": "workspace:^"
     cookie-parser: ^1.4.6
     express: ^4.18.2
-    express-promise-router: ^4.1.1
     express-session: ^1.17.3
     jose: ^4.14.6
     luxon: ^3.4.3
@@ -5117,10 +5113,8 @@ __metadata:
     "@backstage/plugin-catalog-common": "workspace:^"
     "@backstage/plugin-catalog-node": "workspace:^"
     "@backstage/plugin-kubernetes-common": "workspace:^"
-    "@types/lodash": ^4.14.151
     aws-sdk-client-mock: ^3.0.0
     aws-sdk-client-mock-jest: ^3.0.0
-    lodash: ^4.17.21
     luxon: ^3.0.0
     p-limit: ^3.0.2
     uuid: ^8.0.0
@@ -5142,8 +5136,6 @@ __metadata:
     "@backstage/integration": "workspace:^"
     "@backstage/plugin-catalog-common": "workspace:^"
     "@backstage/plugin-catalog-node": "workspace:^"
-    "@types/lodash": ^4.14.151
-    lodash: ^4.17.21
     luxon: ^3.0.0
     msw: ^1.0.0
     node-fetch: ^2.6.7
@@ -5168,8 +5160,6 @@ __metadata:
     "@types/express": "*"
     "@types/supertest": ^2.0.8
     cross-fetch: ^4.0.0
-    express: ^4.17.1
-    express-promise-router: ^4.1.0
     lodash: ^4.17.21
     openapi-merge: ^1.3.2
     openapi3-ts: ^3.1.2
@@ -5236,8 +5226,6 @@ __metadata:
     "@backstage/integration": "workspace:^"
     "@backstage/plugin-bitbucket-cloud-common": "workspace:^"
     "@backstage/plugin-catalog-node": "workspace:^"
-    "@types/lodash": ^4.14.151
-    lodash: ^4.17.21
     msw: ^1.0.0
     node-fetch: ^2.6.7
     winston: ^3.2.1
@@ -6171,7 +6159,6 @@ __metadata:
     "@testing-library/jest-dom": ^6.0.0
     "@testing-library/react": ^14.0.0
     "@types/react": ^16.13.1 || ^17.0.0
-    express: ^4.18.1
     react-use: ^17.2.4
   peerDependencies:
     "@backstage/plugin-catalog-react": "workspace:^"
@@ -7641,7 +7628,6 @@ __metadata:
     "@testing-library/jest-dom": ^6.0.0
     "@testing-library/react": ^14.0.0
     "@types/react": ^16.13.1 || ^17.0.0
-    classnames: ^2.2.6
     luxon: ^3.0.0
     react-use: ^17.2.4
   peerDependencies:
@@ -8546,7 +8532,6 @@ __metadata:
     "@types/supertest": ^2.0.8
     dataloader: ^2.0.0
     express: ^4.17.1
-    express-promise-router: ^4.1.0
     lodash: ^4.17.21
     qs: ^6.10.1
     supertest: ^6.1.3
@@ -8782,7 +8767,6 @@ __metadata:
     "@testing-library/react": ^14.0.0
     "@types/luxon": ^3.0.0
     "@types/react": ^16.13.1 || ^17.0.0
-    classnames: ^2.2.6
     luxon: ^3.0.0
     react-use: ^17.2.4
   peerDependencies:
@@ -8929,7 +8913,6 @@ __metadata:
   resolution: "@backstage/plugin-tech-insights-node@workspace:plugins/tech-insights-node"
   dependencies:
     "@backstage/backend-common": "workspace:^"
-    "@backstage/backend-tasks": "workspace:^"
     "@backstage/cli": "workspace:^"
     "@backstage/config": "workspace:^"
     "@backstage/plugin-tech-insights-common": "workspace:^"
@@ -9225,7 +9208,6 @@ __metadata:
     "@types/express": ^4.17.6
     "@types/supertest": ^2.0.8
     express: ^4.17.1
-    express-promise-router: ^4.1.0
     leasot: ^12.0.0
     supertest: ^6.1.3
     winston: ^3.2.1
@@ -25893,7 +25875,6 @@ __metadata:
     "@backstage/app-defaults": "workspace:^"
     "@backstage/catalog-model": "workspace:^"
     "@backstage/cli": "workspace:^"
-    "@backstage/config": "workspace:^"
     "@backstage/core-app-api": "workspace:^"
     "@backstage/core-compat-api": "workspace:^"
     "@backstage/core-components": "workspace:^"