diff --git a/.github/workflows/electron.yml b/.github/workflows/electron.yml
index 243ae116f..6909a5c1a 100644
--- a/.github/workflows/electron.yml
+++ b/.github/workflows/electron.yml
@@ -301,6 +301,7 @@ jobs:
           npm install --force @rollup/rollup-linux-x64-gnu
           npm install --force @rollup/rollup-linux-arm64-gnu
           npm install --force @rollup/rollup-linux-arm-gnueabihf
+          node scripts/install-linux-sharp.cjs
 
       # Bundled plugins are counted as downloads in the plugin store, so a
       # build only fetches them when the pins change.
diff --git a/scripts/install-linux-sharp.cjs b/scripts/install-linux-sharp.cjs
new file mode 100644
index 000000000..9e32536f4
--- /dev/null
+++ b/scripts/install-linux-sharp.cjs
@@ -0,0 +1,40 @@
+const fs = require("node:fs");
+const path = require("node:path");
+const { execFileSync } = require("node:child_process");
+
+function findPackage(start) {
+  let directory = path.dirname(start);
+  while (directory !== path.dirname(directory)) {
+    const manifest = path.join(directory, "package.json");
+    if (fs.existsSync(manifest)) return JSON.parse(fs.readFileSync(manifest));
+    directory = path.dirname(directory);
+  }
+  throw new Error("Could not locate the installed sharp package manifest");
+}
+
+// The build runs on x64 but ships arm64 and armv7l too, so npm ci alone
+// only installs the x64 binaries.
+function linuxSharpPackages(sharpPackage) {
+  return ["x64", "arm64", "arm"].flatMap((arch) =>
+    [`@img/sharp-linux-${arch}`, `@img/sharp-libvips-linux-${arch}`].map(
+      (name) => {
+        const version = sharpPackage.optionalDependencies?.[name];
+        if (!version) {
+          throw new Error(`sharp does not declare ${name} as a dependency`);
+        }
+        return `${name}@${version}`;
+      },
+    ),
+  );
+}
+
+module.exports = { linuxSharpPackages };
+
+if (require.main === module) {
+  const sharpPackage = findPackage(require.resolve("sharp"));
+  execFileSync(
+    "npm",
+    ["install", "--force", "--no-save", ...linuxSharpPackages(sharpPackage)],
+    { stdio: "inherit" },
+  );
+}
diff --git a/scripts/install-linux-sharp.test.ts b/scripts/install-linux-sharp.test.ts
new file mode 100644
index 000000000..4aafc8944
--- /dev/null
+++ b/scripts/install-linux-sharp.test.ts
@@ -0,0 +1,58 @@
+import fs from "node:fs";
+import { createRequire } from "node:module";
+import path from "node:path";
+import { describe, expect, it } from "vitest";
+
+const require = createRequire(import.meta.url);
+const { linuxSharpPackages } = require("./install-linux-sharp.cjs");
+
+const lock = JSON.parse(
+  fs.readFileSync(path.join(__dirname, "../package-lock.json"), "utf8"),
+);
+const sharpManifest = lock.packages["node_modules/sharp"];
+
+describe("Linux sharp packaging", () => {
+  // The build runs on x64 but ships arm64 and armv7l too, so npm ci alone
+  // only installs the x64 binaries and the arm AppImages cannot load sharp.
+  it("pins the sharp and libvips binaries of every shipped Linux architecture", () => {
+    const packages = linuxSharpPackages({
+      optionalDependencies: {
+        "@img/sharp-linux-x64": "1.0.0",
+        "@img/sharp-linux-arm64": "1.0.1",
+        "@img/sharp-linux-arm": "1.0.2",
+        "@img/sharp-libvips-linux-x64": "2.0.0",
+        "@img/sharp-libvips-linux-arm64": "2.0.1",
+        "@img/sharp-libvips-linux-arm": "2.0.2",
+        "@img/sharp-win32-x64": "9.9.9",
+      },
+    });
+
+    expect([...packages].sort()).toEqual([
+      "@img/sharp-libvips-linux-arm64@2.0.1",
+      "@img/sharp-libvips-linux-arm@2.0.2",
+      "@img/sharp-libvips-linux-x64@2.0.0",
+      "@img/sharp-linux-arm64@1.0.1",
+      "@img/sharp-linux-arm@1.0.2",
+      "@img/sharp-linux-x64@1.0.0",
+    ]);
+  });
+
+  it("only names packages the installed sharp really declares", () => {
+    const packages = linuxSharpPackages(sharpManifest);
+    expect(packages).toHaveLength(6);
+    for (const spec of packages) {
+      expect(spec).toMatch(/^@img\/sharp-[a-z0-9-]+@\d+\.\d+\.\d+$/);
+    }
+  });
+
+  it("fails loudly when sharp stops declaring one of them", () => {
+    expect(() =>
+      linuxSharpPackages({
+        optionalDependencies: {
+          "@img/sharp-linux-x64": "1.0.0",
+          "@img/sharp-libvips-linux-x64": "2.0.0",
+        },
+      }),
+    ).toThrow(/sharp-linux-arm64/);
+  });
+});