diff --git a/modules/runtime/server/cache.ts b/modules/runtime/server/cache.ts
index d3117dd510..5741e4551b 100644
--- a/modules/runtime/server/cache.ts
+++ b/modules/runtime/server/cache.ts
@@ -195,6 +195,44 @@ function getMockForUrl(url: string): MockResult | null {
     return { data: null }
   }
 
+  // npm attestations API - return empty attestations (provenance not needed in tests)
+  if (host === 'registry.npmjs.org' && pathname.startsWith('/-/npm/v1/attestations/')) {
+    return { data: { attestations: [] } }
+  }
+
+  // Constellation API - return empty results for link queries
+  if (host === 'constellation.microcosm.blue') {
+    if (pathname === '/links/distinct-dids') {
+      return { data: { total: 0, linking_dids: [], cursor: undefined } }
+    }
+    if (pathname === '/links/all') {
+      return { data: { links: {} } }
+    }
+    if (pathname === '/xrpc/blue.microcosm.links.getBacklinks') {
+      return { data: { total: 0, records: [], cursor: undefined } }
+    }
+    return { data: null }
+  }
+
+  // UNGH (GitHub proxy) - return mock repo metadata
+  if (host === 'ungh.cc') {
+    const repoMatch = pathname.match(/^\/repos\/([^/]+)\/([^/]+)$/)
+    if (repoMatch?.[1] && repoMatch?.[2]) {
+      return {
+        data: {
+          repo: {
+            description: `${repoMatch[1]}/${repoMatch[2]} - mock repo description`,
+            stars: 1000,
+            forks: 100,
+            watchers: 50,
+            defaultBranch: 'main',
+          },
+        },
+      }
+    }
+    return { data: null }
+  }
+
   // GitHub API - handled via fixtures, return null to use fixture system
   // Note: The actual fixture loading is handled in fetchFromFixtures via special case
   if (host === 'api.github.com') {
@@ -426,6 +464,19 @@ async function handleGitHubApi(
     return { data: [] }
   }
 
+  // Commits endpoint: /repos/{owner}/{repo}/commits
+  const commitsMatch = pathname.match(/^\/repos\/([^/]+)\/([^/]+)\/commits$/)
+  if (commitsMatch) {
+    // Return a single-item array; fetchPageCount will use body.length when no Link header
+    return { data: [{ sha: 'mock-commit' }] }
+  }
+
+  // Search endpoint: /search/issues, /search/commits, etc.
+  const searchMatch = pathname.match(/^\/search\/(.+)$/)
+  if (searchMatch) {
+    return { data: { total_count: 0, incomplete_results: false, items: [] } }
+  }
+
   // Other GitHub API endpoints can be added here as needed
   return null
 }
diff --git a/nuxt.config.ts b/nuxt.config.ts
index dc1e0b4fd1..2a3629aa3c 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -1,6 +1,6 @@
 import process from 'node:process'
 import { currentLocales } from './config/i18n'
-import { isCI, provider } from 'std-env'
+import { isCI, isTest, provider } from 'std-env'
 
 export default defineNuxtConfig({
   modules: [
@@ -216,6 +216,9 @@ export default defineNuxtConfig({
         include: ['../test/unit/server/**/*.ts'],
       },
     },
+    replace: {
+      'import.meta.test': isTest,
+    },
   },
 
   fonts: {
diff --git a/server/utils/atproto/oauth.ts b/server/utils/atproto/oauth.ts
index e82ce85e46..c5c3380dc6 100644
--- a/server/utils/atproto/oauth.ts
+++ b/server/utils/atproto/oauth.ts
@@ -19,20 +19,18 @@ export const handleResolver = new AtprotoDohHandleResolver({
 })
 
 export function getOauthClientMetadata() {
-  const dev = import.meta.dev
+  const redirect_uri = `${clientUri}/api/auth/atproto`
 
-  const client_uri = clientUri
-  const redirect_uri = `${client_uri}/api/auth/atproto`
-
-  const client_id = dev
-    ? `http://localhost?redirect_uri=${encodeURIComponent(redirect_uri)}&scope=${encodeURIComponent(scope)}`
-    : `${client_uri}/oauth-client-metadata.json`
+  const client_id =
+    import.meta.dev || import.meta.test
+      ? `http://localhost?redirect_uri=${encodeURIComponent(redirect_uri)}&scope=${encodeURIComponent(scope)}`
+      : `${clientUri}/oauth-client-metadata.json`
 
   // If anything changes here, please make sure to also update /shared/schemas/oauth.ts to match
   return parse(OAuthMetadataSchema, {
     client_name: 'npmx.dev',
     client_id,
-    client_uri,
+    client_uri: clientUri,
     scope,
     redirect_uris: [redirect_uri] as [string, ...string[]],
     grant_types: ['authorization_code', 'refresh_token'],
diff --git a/test/e2e/og-image.spec.ts-snapshots/og-image-for--package-nuxt-v-3-20-2.png b/test/e2e/og-image.spec.ts-snapshots/og-image-for--package-nuxt-v-3-20-2.png
index dd02dc3aeb..a8798d49bd 100644
Binary files a/test/e2e/og-image.spec.ts-snapshots/og-image-for--package-nuxt-v-3-20-2.png and b/test/e2e/og-image.spec.ts-snapshots/og-image-for--package-nuxt-v-3-20-2.png differ
diff --git a/test/fixtures/mock-routes.cjs b/test/fixtures/mock-routes.cjs
index d97915bf73..bd5527246b 100644
--- a/test/fixtures/mock-routes.cjs
+++ b/test/fixtures/mock-routes.cjs
@@ -124,6 +124,11 @@ function matchNpmRegistry(urlString) {
     return json({ error: 'Not found' }, 404)
   }
 
+  // Attestations endpoint - return empty attestations
+  if (pathname.startsWith('/-/npm/v1/attestations/')) {
+    return json({ attestations: [] })
+  }
+
   // Packument
   if (!pathname.startsWith('/-/')) {
     let packageName = pathname.slice(1)
@@ -440,6 +445,52 @@ function matchGravatarApi(_urlString) {
   return { status: 404, contentType: 'text/plain', body: 'Not found' }
 }
 
+/**
+ * @param {string} urlString
+ * @returns {MockResponse | null}
+ */
+function matchUnghApi(urlString) {
+  const url = new URL(urlString)
+
+  const repoMatch = url.pathname.match(/^\/repos\/([^/]+)\/([^/]+)$/)
+  if (repoMatch && repoMatch[1] && repoMatch[2]) {
+    return json({
+      repo: {
+        description: `${repoMatch[1]}/${repoMatch[2]} - mock repo description`,
+        stars: 1000,
+        forks: 100,
+        watchers: 50,
+        defaultBranch: 'main',
+      },
+    })
+  }
+
+  return json(null)
+}
+
+/**
+ * @param {string} urlString
+ * @returns {MockResponse | null}
+ */
+function matchConstellationApi(urlString) {
+  const url = new URL(urlString)
+
+  if (url.pathname === '/links/distinct-dids') {
+    return json({ total: 0, linking_dids: [], cursor: undefined })
+  }
+
+  if (url.pathname === '/links/all') {
+    return json({ links: {} })
+  }
+
+  if (url.pathname === '/xrpc/blue.microcosm.links.getBacklinks') {
+    return json({ total: 0, records: [], cursor: undefined })
+  }
+
+  // Unknown constellation endpoint - return empty
+  return json(null)
+}
+
 /**
  * @param {string} urlString
  * @returns {MockResponse | null}
@@ -454,6 +505,18 @@ function matchGitHubApi(urlString) {
     return json(fixture || [])
   }
 
+  // Commits endpoint
+  const commitsMatch = pathname.match(/^\/repos\/([^/]+)\/([^/]+)\/commits$/)
+  if (commitsMatch) {
+    return json([{ sha: 'mock-commit' }])
+  }
+
+  // Search endpoint (issues, commits, etc.)
+  const searchMatch = pathname.match(/^\/search\/(.+)$/)
+  if (searchMatch) {
+    return json({ total_count: 0, incomplete_results: false, items: [] })
+  }
+
   return null
 }
 
@@ -480,6 +543,12 @@ const routes = [
   },
   { name: 'Gravatar API', pattern: 'https://www.gravatar.com/**', match: matchGravatarApi },
   { name: 'GitHub API', pattern: 'https://api.github.com/**', match: matchGitHubApi },
+  { name: 'UNGH API', pattern: 'https://ungh.cc/**', match: matchUnghApi },
+  {
+    name: 'Constellation API',
+    pattern: 'https://constellation.microcosm.blue/**',
+    match: matchConstellationApi,
+  },
 ]
 
 /**