diff --git a/apps/web/src/components/desktopUpdate.logic.test.ts b/apps/web/src/components/desktopUpdate.logic.test.ts
index 04b1bac77fa9..3a42348381de 100644
--- a/apps/web/src/components/desktopUpdate.logic.test.ts
+++ b/apps/web/src/components/desktopUpdate.logic.test.ts
@@ -201,13 +201,37 @@ describe("getDesktopUpdateActionError", () => {
 
 describe("desktop update UI helpers", () => {
   it("builds the stable release URL for a downloaded version", () => {
-    expect(getDesktopUpdateReleaseUrl("0.0.30")).toBe(
+    expect(getDesktopUpdateReleaseUrl("0.0.30", "pingdotgg/t3code")).toBe(
       "https://github.com/pingdotgg/t3code/releases/tag/v0.0.30",
     );
   });
 
+  it("uses the configured desktop update repository for release URLs", () => {
+    expect(getDesktopUpdateReleaseUrl("1.2.3", "JustYannicc/t3code")).toBe(
+      "https://github.com/JustYannicc/t3code/releases/tag/v1.2.3",
+    );
+    expect(getDesktopUpdateReleaseHistoryUrl("JustYannicc/t3code")).toBe(
+      "https://github.com/JustYannicc/t3code/releases",
+    );
+  });
+
+  it.each([
+    "owner/repo/extra",
+    "owner#notes/repo",
+    "owner/repo#notes",
+    "owner?tab=notes/repo",
+    "owner/repo?tab=notes",
+  ])("falls back to upstream for an invalid configured repository: %s", (repository) => {
+    expect(getDesktopUpdateReleaseHistoryUrl(repository)).toBe(
+      "https://github.com/pingdotgg/t3code/releases",
+    );
+    expect(getDesktopUpdateReleaseUrl("1.2.3", repository)).toBe(
+      "https://github.com/pingdotgg/t3code/releases/tag/v1.2.3",
+    );
+  });
+
   it("builds the nightly release URL without dropping its version suffix", () => {
-    expect(getDesktopUpdateReleaseUrl("0.0.30-nightly.20260728.931")).toBe(
+    expect(getDesktopUpdateReleaseUrl("0.0.30-nightly.20260728.931", "pingdotgg/t3code")).toBe(
       "https://github.com/pingdotgg/t3code/releases/tag/v0.0.30-nightly.20260728.931",
     );
   });
@@ -218,7 +242,7 @@ describe("desktop update UI helpers", () => {
   });
 
   it("builds the release history URL", () => {
-    expect(getDesktopUpdateReleaseHistoryUrl()).toBe(
+    expect(getDesktopUpdateReleaseHistoryUrl("pingdotgg/t3code")).toBe(
       "https://github.com/pingdotgg/t3code/releases",
     );
   });
diff --git a/apps/web/src/components/desktopUpdate.logic.ts b/apps/web/src/components/desktopUpdate.logic.ts
index aa7411e70b2f..bbef4bf5a4e3 100644
--- a/apps/web/src/components/desktopUpdate.logic.ts
+++ b/apps/web/src/components/desktopUpdate.logic.ts
@@ -2,8 +2,24 @@ import type { DesktopUpdateActionResult, DesktopUpdateState } from "@t3tools/con
 
 export type DesktopUpdateButtonAction = "download" | "install" | "none";
 
-const DESKTOP_RELEASE_HISTORY_URL = "https://github.com/pingdotgg/t3code/releases";
-const DESKTOP_RELEASE_TAG_URL = `${DESKTOP_RELEASE_HISTORY_URL}/tag`;
+const DEFAULT_DESKTOP_RELEASE_REPOSITORY = "pingdotgg/t3code";
+const GITHUB_REPOSITORY_SEGMENT = /^[A-Za-z0-9._-]+$/u;
+
+function isValidRepositorySegment(value: string | undefined): value is string {
+  return (
+    value !== undefined && value !== "." && value !== ".." && GITHUB_REPOSITORY_SEGMENT.test(value)
+  );
+}
+
+function desktopReleaseRepositoryUrl(repository: string | undefined): string {
+  const configuredRepository = repository?.trim() ?? "";
+  const [owner, name, ...extra] = configuredRepository.split("/");
+  const releaseRepository =
+    isValidRepositorySegment(owner) && isValidRepositorySegment(name) && extra.length === 0
+      ? configuredRepository
+      : DEFAULT_DESKTOP_RELEASE_REPOSITORY;
+  return `https://github.com/${releaseRepository}/releases`;
+}
 
 /**
  * The main process fills `downloadedVersion` from the updater's `update-downloaded`
@@ -14,14 +30,19 @@ export function getDesktopUpdateDownloadedVersion(state: DesktopUpdateState): st
   return state.downloadedVersion ?? state.availableVersion;
 }
 
-export function getDesktopUpdateReleaseUrl(version: string | null): string | null {
+export function getDesktopUpdateReleaseUrl(
+  version: string | null,
+  repository: string | undefined = import.meta.env.T3CODE_DESKTOP_UPDATE_REPOSITORY,
+): string | null {
   const normalizedVersion = version?.trim();
   if (!normalizedVersion) return null;
-  return `${DESKTOP_RELEASE_TAG_URL}/v${encodeURIComponent(normalizedVersion)}`;
+  return `${desktopReleaseRepositoryUrl(repository)}/tag/v${encodeURIComponent(normalizedVersion)}`;
 }
 
-export function getDesktopUpdateReleaseHistoryUrl(): string {
-  return DESKTOP_RELEASE_HISTORY_URL;
+export function getDesktopUpdateReleaseHistoryUrl(
+  repository: string | undefined = import.meta.env.T3CODE_DESKTOP_UPDATE_REPOSITORY,
+): string {
+  return desktopReleaseRepositoryUrl(repository);
 }
 
 export function resolveDesktopUpdateButtonAction(
diff --git a/apps/web/src/components/desktopUpdate.toast.test.tsx b/apps/web/src/components/desktopUpdate.toast.test.tsx
index 76e6a9a01af7..af95240e7f90 100644
--- a/apps/web/src/components/desktopUpdate.toast.test.tsx
+++ b/apps/web/src/components/desktopUpdate.toast.test.tsx
@@ -1,5 +1,5 @@
 import { isValidElement, type ReactElement, type ReactNode } from "react";
-import { beforeEach, describe, expect, it, vi } from "vite-plus/test";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vite-plus/test";
 import type { DesktopUpdateState } from "@t3tools/contracts";
 
 const testState = vi.hoisted(() => ({
@@ -64,6 +64,24 @@ describe("showDesktopUpdateDownloadedToast", () => {
     testState.addToast.mockReset();
   });
 
+  afterEach(() => {
+    vi.unstubAllEnvs();
+  });
+
+  it("opens release notes from the configured repository", async () => {
+    vi.stubEnv("T3CODE_DESKTOP_UPDATE_REPOSITORY", "JustYannicc/t3code");
+    const openExternal = vi.fn().mockResolvedValue(true);
+
+    showDesktopUpdateDownloadedToast({ openExternal }, downloadedState());
+    findReleaseNotesLink(getDescription())?.props.onClick?.();
+
+    await vi.waitFor(() => {
+      expect(openExternal).toHaveBeenCalledWith(
+        "https://github.com/JustYannicc/t3code/releases/tag/v0.0.30",
+      );
+    });
+  });
+
   it("opens the downloaded version's release notes", async () => {
     const openExternal = vi.fn().mockResolvedValue(true);
 
diff --git a/apps/web/src/components/sidebar/SidebarUpdateReleaseNotes.test.tsx b/apps/web/src/components/sidebar/SidebarUpdateReleaseNotes.test.tsx
index d229e2d3cabb..540eff3c6655 100644
--- a/apps/web/src/components/sidebar/SidebarUpdateReleaseNotes.test.tsx
+++ b/apps/web/src/components/sidebar/SidebarUpdateReleaseNotes.test.tsx
@@ -1,6 +1,6 @@
 import type { DesktopUpdateState } from "@t3tools/contracts";
 import { isValidElement, type MouseEvent, type ReactElement, type ReactNode } from "react";
-import { beforeEach, describe, expect, it, vi } from "vite-plus/test";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vite-plus/test";
 
 const testState = vi.hoisted(() => ({
   addToast: vi.fn(),
@@ -74,6 +74,26 @@ describe("SidebarUpdateReleaseNotes", () => {
     testState.addToast.mockReset();
   });
 
+  afterEach(() => {
+    vi.unstubAllEnvs();
+  });
+
+  it("uses the configured repository for release links", () => {
+    vi.stubEnv("T3CODE_DESKTOP_UPDATE_REPOSITORY", "JustYannicc/t3code");
+    const anchors = collectAnchors(
+      renderNotes({
+        ...baseState,
+        releaseNotes: [{ version: "0.0.36-nightly.3", items: ["Change 3"], totalItems: 1 }],
+        omittedReleaseCount: 1,
+      }),
+    );
+
+    expect(anchors.map(({ props }) => props.href)).toEqual([
+      "https://github.com/JustYannicc/t3code/releases/tag/v0.0.36-nightly.3",
+      "https://github.com/JustYannicc/t3code/releases",
+    ]);
+  });
+
   it("links each preview to its exact release and labels hidden changes", () => {
     const anchors = collectAnchors(
       renderNotes({
diff --git a/apps/web/src/vite-env.d.ts b/apps/web/src/vite-env.d.ts
index 31260c8ae666..acc73a399a3c 100644
--- a/apps/web/src/vite-env.d.ts
+++ b/apps/web/src/vite-env.d.ts
@@ -13,6 +13,7 @@ interface ImportMetaEnv {
   readonly VITE_RELAY_OTLP_TRACES_URL: string;
   readonly VITE_RELAY_OTLP_TRACES_DATASET: string;
   readonly VITE_RELAY_OTLP_TRACES_TOKEN: string;
+  readonly T3CODE_DESKTOP_UPDATE_REPOSITORY: string;
   readonly APP_VERSION: string;
 }
 
diff --git a/apps/web/vite.config.ts b/apps/web/vite.config.ts
index cd4f48a64fcf..cd50954cd761 100644
--- a/apps/web/vite.config.ts
+++ b/apps/web/vite.config.ts
@@ -42,6 +42,10 @@ const configuredRelayTracingDataset = repoEnv.VITE_RELAY_OTLP_TRACES_DATASET?.tr
 const configuredRelayTracingToken = repoEnv.VITE_RELAY_OTLP_TRACES_TOKEN?.trim() || "";
 const configuredHostedAppChannel = process.env.VITE_HOSTED_APP_CHANNEL?.trim() || "";
 const configuredAppVersion = process.env.APP_VERSION?.trim() || pkg.version;
+const configuredDesktopUpdateRepository =
+  process.env.T3CODE_DESKTOP_UPDATE_REPOSITORY?.trim() ||
+  process.env.GITHUB_REPOSITORY?.trim() ||
+  "";
 const configuredHostedAppUrl = (() => {
   const explicitHostedAppUrl = process.env.VITE_HOSTED_APP_URL?.trim();
   if (explicitHostedAppUrl) {
@@ -215,6 +219,9 @@ export default defineConfig(() => {
       "import.meta.env.VITE_RELAY_OTLP_TRACES_TOKEN": JSON.stringify(configuredRelayTracingToken),
       "import.meta.env.VITE_HOSTED_APP_URL": JSON.stringify(configuredHostedAppUrl ?? ""),
       "import.meta.env.VITE_HOSTED_APP_CHANNEL": JSON.stringify(configuredHostedAppChannel),
+      "import.meta.env.T3CODE_DESKTOP_UPDATE_REPOSITORY": JSON.stringify(
+        configuredDesktopUpdateRepository,
+      ),
       "import.meta.env.APP_VERSION": JSON.stringify(configuredAppVersion),
     },
     resolve: {