diff --git a/.forgejo/workflows/test.yml b/.forgejo/workflows/test.yml
index 5c0ed37..f3348bf 100644
--- a/.forgejo/workflows/test.yml
+++ b/.forgejo/workflows/test.yml
@@ -30,6 +30,7 @@ jobs:
       NUXT_PUBLIC_COMING_SOON: 'false'
       NODE_ENV: development
       ALLOW_DEV_TEST_ENDPOINTS: 'true'
+      BASE_URL: http://localhost:3000
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
@@ -100,6 +101,7 @@ jobs:
       NUXT_PUBLIC_COMING_SOON: 'false'
       NODE_ENV: development
       ALLOW_DEV_TEST_ENDPOINTS: 'true'
+      BASE_URL: http://localhost:3000
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
diff --git a/app/pages/events/index.vue b/app/pages/events/index.vue
index 3a64189..66c90e9 100644
--- a/app/pages/events/index.vue
+++ b/app/pages/events/index.vue
@@ -232,8 +232,12 @@ const isAlmostFull = (event) => {
 .event-row:hover {
   padding-left: 4px;
 }
-.event-row.is-cancelled {
-  opacity: 0.5;
+.event-row.is-cancelled .event-title a {
+  text-decoration: line-through;
+  text-decoration-thickness: 1px;
+}
+.event-row.is-cancelled .event-tagline {
+  text-decoration: line-through;
 }
 
 .event-date-col {
diff --git a/server/api/admin/board-channels.post.js b/server/api/admin/board-channels.post.js
index b49d81f..bc4a9f8 100644
--- a/server/api/admin/board-channels.post.js
+++ b/server/api/admin/board-channels.post.js
@@ -25,7 +25,9 @@ export default defineEventHandler(async (event) => {
 
   if (!slackChannelId) {
     if (process.env.ALLOW_DEV_TEST_ENDPOINTS === 'true') {
-      slackChannelId = `dev-stub-${Date.now()}`
+      // Match the Slack channel ID format (^[A-Z0-9]+$) so the value
+      // round-trips through boardChannelUpdateSchema on subsequent edits.
+      slackChannelId = `CDEV${Date.now().toString(36).toUpperCase()}`
       console.log('[slack] DEV MODE — skipping createChannel', { name: body.name, slackChannelId })
     } else {
       const slack = getSlackAdminService()