diff --git a/.github/MAINTAINERS.md b/.github/MAINTAINERS.md
index 5db11fafd..e42f9f8bb 100644
--- a/.github/MAINTAINERS.md
+++ b/.github/MAINTAINERS.md
@@ -88,7 +88,7 @@ npm run lint -- --fix
 **Frontend type errors:**
 ```bash
 cd frontend
-npx tsc --noEmit
+npm run typecheck
 # Fix the errors shown
 ```
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d66edca4b..b7074d23e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -276,9 +276,13 @@ jobs:
         working-directory: frontend
         run: npm ci
 
+      # `tsc -b`, not `tsc --noEmit`: the root tsconfig only holds project
+      # references, so plain `tsc` checks zero files. Kept out of `npm run
+      # build` because every installer runs that on the user's machine, and
+      # the type check alone needs ~1 GB of Node heap (#3181).
       - name: Run TypeScript check
         working-directory: frontend
-        run: npx tsc --noEmit
+        run: npm run typecheck
 
   frontend-tests:
     name: Frontend Tests
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 6724d777f..f5b248823 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -58,7 +58,7 @@ repos:
         files: ^backend/app/
       - id: frontend-typecheck
         name: TypeScript type check
-        entry: bash -c 'cd frontend && npx tsc --noEmit'
+        entry: bash -c 'cd frontend && npm run typecheck'
         language: system
         pass_filenames: false
         files: ^frontend/src/
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c1e6340a..5519f74f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 All notable changes to Bambuddy will be documented in this file.
 
+## [1.2.5.7] - Unreleased
+
+### Fixed
+- **Installing or updating no longer runs out of memory on 2 GB machines (#3181, reported by @PhilippeP62)** — Every installer and updater builds the frontend with `npm run build`, which also ran the TypeScript type check. That check alone needs about 1 GB of Node memory, the whole default allowance on a 2 GB machine such as the standard Proxmox LXC or a 2 GB Raspberry Pi, so the build crashed with "JavaScript heap out of memory". On the Proxmox helper script that left the install without its database and nobody could sign in; Bambuddy's own update script rolled back but could never finish an update. The build now only bundles the frontend, and the type check runs on its own in development and CI (`npm run typecheck`). That also fixes CI's type-check job and the pre-commit hook, which ran `tsc --noEmit` against a config that lists no files and so had been passing without checking anything.
+
 ## [1.2.5.6] - 2026-09-24
 
 ### Added
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2045e3180..c93895748 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -206,7 +206,7 @@ cd frontend
 npm run lint
 
 # Type check
-npx tsc --noEmit
+npm run typecheck
 ```
 
 ### Pre-commit Hooks
diff --git a/frontend/package.json b/frontend/package.json
index 6481b3ac0..a97f04547 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -5,7 +5,8 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
-    "build": "tsc -b && vite build && npm run check:baseline",
+    "build": "vite build && npm run check:baseline",
+    "typecheck": "tsc -b",
     "lint": "eslint .",
     "preview": "vite preview",
     "test": "vitest",
diff --git a/test_frontend.sh b/test_frontend.sh
index 3a7d85e67..8c5d15305 100755
--- a/test_frontend.sh
+++ b/test_frontend.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 cd frontend
-npx tsc
+npm run typecheck
 npm run lint
 npm run test:run
 cd ..