diff --git a/.github/actions/yarn-nm-install/action.yml b/.github/actions/yarn-nm-install/action.yml
index 02851e1d4fd..67687ce2ee9 100644
--- a/.github/actions/yarn-nm-install/action.yml
+++ b/.github/actions/yarn-nm-install/action.yml
@@ -51,7 +51,7 @@ inputs:
   enable-corepack:
     description: 'Enable corepack'
     required: false
-    default: 'false'
+    default: 'true'
   skip-prisma-postinstall-generate:
     description: 'Avoid prisma to automatically generate schema on postinstall'
     required: false
@@ -62,7 +62,9 @@ runs:
 
   steps:
     - name: ⚙️ Enable Corepack
-      if: ${{ inputs.enable-corepack }} == 'true'
+      # Booleans aren't booleans
+      # https://github.com/actions/runner/issues/2238 (https://github.com/actions/runner/issues/1483)
+      if: inputs.enable-corepack == 'true'
       shell: bash
       working-directory: ${{ inputs.cwd }}
       run: corepack enable
diff --git a/apps/nextjs-app/src/components/avatar/TextAvatar.tsx b/apps/nextjs-app/src/components/avatar/TextAvatar.tsx
index c775a0df810..964081fd96b 100644
--- a/apps/nextjs-app/src/components/avatar/TextAvatar.tsx
+++ b/apps/nextjs-app/src/components/avatar/TextAvatar.tsx
@@ -12,7 +12,7 @@ type Props = {
 
 const mapToFullName = (nameOrFullName: string | FullName): FullName => {
   if (typeof nameOrFullName === 'string') {
-    const [firstName, lastName] = nameOrFullName.split(' ');
+    const [firstName = 'F', lastName = 'L'] = nameOrFullName.split(' ');
     return {
       firstName,
       lastName,
diff --git a/apps/nextjs-app/src/features/demo/blocks/jumbotron/Jumbotron.tsx b/apps/nextjs-app/src/features/demo/blocks/jumbotron/Jumbotron.tsx
index 4be872f3f80..8eaf215aa02 100644
--- a/apps/nextjs-app/src/features/demo/blocks/jumbotron/Jumbotron.tsx
+++ b/apps/nextjs-app/src/features/demo/blocks/jumbotron/Jumbotron.tsx
@@ -75,13 +75,13 @@ const GradientText = styled.span<Props>`
   }
 `;
 
-const titles: [string, GradientTextBackgrounds][] = [
+const titles = [
   ['Typescript', 'sky'],
   ['React', 'orange'],
   ['Nextjs', 'violet'],
   ['Prisma', 'yellow'],
   ['Emotion', 'fun'],
-];
+] satisfies [string, GradientTextBackgrounds][];
 
 export const Jumbotron: FC = () => {
   const [count, setCount] = useState(0);
@@ -104,7 +104,7 @@ export const Jumbotron: FC = () => {
         One of many possibles
         <br /> made with
         {titles.map((title, idx) => {
-          const [label, grad] = titles[idx];
+          const [label, grad] = title;
           const curr = idx === count;
           return (
             <GradientText
diff --git a/apps/nextjs-app/src/features/demo/components/PoemGrid.tsx b/apps/nextjs-app/src/features/demo/components/PoemGrid.tsx
index a39fde326f3..617fff0114d 100644
--- a/apps/nextjs-app/src/features/demo/components/PoemGrid.tsx
+++ b/apps/nextjs-app/src/features/demo/components/PoemGrid.tsx
@@ -1,30 +1,12 @@
-import { ArrayUtils } from '@your-org/ts-utils';
 import type { FC } from 'react';
 import type { SearchPoems } from '@/backend/features/poem/SearchPoems';
 import { PoemCard } from './PoemCard';
 
-const waterImages = new Array(25).fill('').map((img, idx) => {
-  const index = String(idx + 1).padStart(2, '0');
-  return `/shared-assets/images/water/water-${index}.jpg`;
-});
-
-export const PoemGrid: FC<{ poems: SearchPoems; children?: never }> = (
-  props
-) => {
+export const PoemGrid: FC<{ poems: SearchPoems }> = (props) => {
   const { poems } = props;
-  let images = waterImages;
   return (
     <div className="flex flex-wrap">
       {poems.map((poem) => {
-        const randomImg = ArrayUtils.getRandom(images);
-        const defaultImg = `/_next/image?url=${encodeURIComponent(
-          randomImg
-        )}&w=640&q=85`;
-        images =
-          images.length < 1
-            ? waterImages
-            : ArrayUtils.removeItem(images, randomImg);
-
         const unsplashImg = `https://source.unsplash.com/random/640x480?${(
           poem.keywords ?? []
         )
@@ -42,7 +24,6 @@ export const PoemGrid: FC<{ poems: SearchPoems; children?: never }> = (
               author={poem.author}
               keywords={poem.keywords}
               img={unsplashImg}
-              defaultImg={defaultImg}
             />
           </div>
         );
diff --git a/apps/nextjs-app/src/pages/_document.tsx b/apps/nextjs-app/src/pages/_document.tsx
index 09892da745e..c26cf5abd14 100644
--- a/apps/nextjs-app/src/pages/_document.tsx
+++ b/apps/nextjs-app/src/pages/_document.tsx
@@ -9,7 +9,7 @@ type Props = DocumentProps & {
 };
 
 class MyDocument extends Document<Props> {
-  render() {
+  override render() {
     const locale = this.props.locale ?? defaultLocale;
 
     return (
diff --git a/packages/db-main-prisma/src/prisma-manager.ts b/packages/db-main-prisma/src/prisma-manager.ts
index 20111a378c4..cd8d4e54e1e 100644
--- a/packages/db-main-prisma/src/prisma-manager.ts
+++ b/packages/db-main-prisma/src/prisma-manager.ts
@@ -32,7 +32,7 @@ export class PrismaManager {
         PrismaManager.instances ??= {};
         PrismaManager.instances[instanceKey] = prismaClientFactory();
       }
-      return PrismaManager.instances[instanceKey];
+      return PrismaManager.instances[instanceKey] as PrismaClient;
     } else {
       // PrismaClient is attached to the `global` object in development to prevent
       // exhausting your database connection limit.
@@ -43,7 +43,7 @@ export class PrismaManager {
           '[PrismaFactory.createDevSafeInstance]: Dev instance created and preserved globally.'
         );
       }
-      return global.__PRISMA_INSTANCES__[instanceKey];
+      return global.__PRISMA_INSTANCES__[instanceKey] as PrismaClient;
     }
   }
 }
diff --git a/packages/ts-utils/src/array/ArrayUtils.ts b/packages/ts-utils/src/array/ArrayUtils.ts
index 6de9d6d388e..bc4ec58d034 100644
--- a/packages/ts-utils/src/array/ArrayUtils.ts
+++ b/packages/ts-utils/src/array/ArrayUtils.ts
@@ -1,8 +1,10 @@
 import { getRandomInt } from '../random/index';
+import type { NonEmptyArray } from '../types';
 
 export class ArrayUtils {
-  static getRandom<T>(items: T[]): T {
-    return items[getRandomInt(0, items.length - 1)];
+  static getRandom<T>(items: NonEmptyArray<T>): T {
+    if (items.length === 1) return items[0];
+    return items[getRandomInt(0, items.length - 1)] as unknown as T;
   }
 
   static removeItem<T>(arr: T[], item: T): T[] {
diff --git a/packages/ts-utils/src/array/__tests__/ArrayUtils.test.ts b/packages/ts-utils/src/array/__tests__/ArrayUtils.test.ts
index 8442c3eb8c5..0bc5ab005e0 100644
--- a/packages/ts-utils/src/array/__tests__/ArrayUtils.test.ts
+++ b/packages/ts-utils/src/array/__tests__/ArrayUtils.test.ts
@@ -1,3 +1,4 @@
+import type { NonEmptyArray } from '../../types';
 import { ArrayUtils } from '../ArrayUtils';
 
 describe('ArrayUtils', () => {
@@ -11,8 +12,8 @@ describe('ArrayUtils', () => {
   });
   describe('getRandom', () => {
     it('should return different elements', () => {
-      const arr = ['cool', 'test', true, 0];
-      const results: typeof arr = [];
+      const arr = ['cool', 'test', true, 0] satisfies NonEmptyArray<any>;
+      const results: NonEmptyArray<(typeof arr)[number]> = [0];
       const maxIterations = 20;
       for (let i = 0; i < maxIterations; i++) {
         results.push(ArrayUtils.getRandom(arr));
@@ -21,7 +22,7 @@ describe('ArrayUtils', () => {
       expect(unique.length).toBeGreaterThan(1);
     });
     it('should always return an element from the array', () => {
-      const arr = ['cool', 'test', true, 0];
+      const arr = ['cool', 'test', true, 0] satisfies NonEmptyArray<any>;
       const maxIterations = 20;
       for (let i = 0; i < maxIterations; i++) {
         const el = ArrayUtils.getRandom(arr);
diff --git a/packages/ts-utils/src/typeguards/typeguards.ts b/packages/ts-utils/src/typeguards/typeguards.ts
index fec52971600..b4929bd9080 100644
--- a/packages/ts-utils/src/typeguards/typeguards.ts
+++ b/packages/ts-utils/src/typeguards/typeguards.ts
@@ -1,3 +1,5 @@
+import type { NonEmptyArray } from '../types';
+
 export type IsoDateString = string;
 export const isIsoDateString = (dateStr: unknown): dateStr is IsoDateString => {
   if (
@@ -14,6 +16,10 @@ export const isIsoDateString = (dateStr: unknown): dateStr is IsoDateString => {
   }
 };
 
+export const isNonEmptyArray = <T>(v: unknown): v is NonEmptyArray<T> => {
+  return Array.isArray(v) && v.length > 0;
+};
+
 export const isNonEmptyString = (v: unknown, trim = true): v is string => {
   return typeof v === 'string' && (trim ? v.trim() : v).length > 0;
 };
diff --git a/packages/ts-utils/src/types/NonEmptyArray.ts b/packages/ts-utils/src/types/NonEmptyArray.ts
new file mode 100644
index 00000000000..5ae448c0c96
--- /dev/null
+++ b/packages/ts-utils/src/types/NonEmptyArray.ts
@@ -0,0 +1 @@
+export type NonEmptyArray<T> = [T, ...T[]];
diff --git a/packages/ts-utils/src/types/index.ts b/packages/ts-utils/src/types/index.ts
index 9e107f44c86..72cce015c6d 100644
--- a/packages/ts-utils/src/types/index.ts
+++ b/packages/ts-utils/src/types/index.ts
@@ -1 +1,2 @@
 export type { UnPromisify } from './Unpromisify';
+export type { NonEmptyArray } from './NonEmptyArray';
diff --git a/packages/ui-lib/src/ux/text/GradientText.stories.tsx b/packages/ui-lib/src/ux/text/GradientText.stories.tsx
index 45a54f1c892..d2ecb5c1cab 100644
--- a/packages/ui-lib/src/ux/text/GradientText.stories.tsx
+++ b/packages/ui-lib/src/ux/text/GradientText.stories.tsx
@@ -64,7 +64,7 @@ export const AnimatedExample: StoryObj<typeof GradientText> = {
           >
             Typescript
             {titles.map((title, idx) => {
-              const [label, grad] = titles[idx];
+              const [label, grad] = title;
               const curr = idx === activeIdx;
               return (
                 <GradientText
diff --git a/tsconfig.base.json b/tsconfig.base.json
index 2743a8df895..254e0144509 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -1,16 +1,20 @@
 {
   "$schema": "https://json.schemastore.org/tsconfig",
   "compilerOptions": {
+    "moduleResolution": "node",
+    "verbatimModuleSyntax": true,
     "strict": true,
     "useUnknownInCatchVariables": true,
-    "verbatimModuleSyntax": true,
+    "noImplicitOverride": true,
+    "noUncheckedIndexedAccess": true,
+    "allowUnreachableCode": false,
+    "noFallthroughCasesInSwitch": true,
+    "forceConsistentCasingInFileNames": true,
     "allowJs": true,
+    "resolveJsonModule": true,
     "skipLibCheck": true,
-    "forceConsistentCasingInFileNames": true,
     "noEmit": true,
     "esModuleInterop": true,
-    "moduleResolution": "node",
-    "resolveJsonModule": true,
     "incremental": true,
     "newLine": "lf"
   },