AA
Advent of Astro
Challenges
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Every challenge,
ever.
New challenges unlock at 9am UTC each day in December.
2026
●
1
Build a button component
2
Layout islands with slots
3
Theming with CSS variables
4
Content collections + Zod
5
Dynamic routes from MDX
6
Forms with Astro Actions
7
Toast notifications
8
Radix Dialog patterns
9
Accordion from data
10
Tabs with shadcn/ui
11
Embedding Mux video
12
MDX components mapping
13
Sitemap & SEO meta
14
Static path generation
15
Image optimization
16
Dark mode the boring way
17
Search across collections
18
RSS feeds for free
19
Pagination patterns
20
View transitions
21
Server islands deep dive
22
Edge middleware on Netlify
23
Email digests with Resend
24
Analytics without trackers
25
Ship it for real