Community

How other people built it, and everything you can do on a board. Look around, then clone one and make it yours.

• system-design 21
• interview 16
• beginner 5
• data 4
• marketplace 4
• realtime 4
• backend 3
• media 3
• social 3
• ai 2
• ecommerce 2
• saas 2
• bot 1
• concurrency 1
• ddd 1
• devops 1
• domain 1
• fintech 1
• kubernetes 1
• messaging 1
• mobile 1
• mvp 1
• storage 1
• ui 1
• uml 1

• Rate limiterToken bucket or sliding window? Where it runs, how nodes share counts and what happens when the limiter itself is down.
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• Clean architecture in UMLUse cases, ports and adapters as a class diagram, with the arrows pointing the right way.
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• Notification systemPush, email and SMS from one place: templates, preferences, retries and no duplicates.
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