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[Render Web Service, Free tier](https://render.com/docs/free#free-web-services)\n2. 750 instance-hours/month; spins down after 15 minutes of idle time.\n3. Custom Domains.\n4. Managed TLS certificates.\n\n### Backend and Frontend\n\n1. Backend and Frontend: [Next.js](https://nextjs.org/docs/app/getting-started).\n2. Charts and visualizations: [Chart.js](https://www.chartjs.org/docs/latest/).\n\n#### L1\n\n1. [lru-cache](https://www.npmjs.com/package/lru-cache)\n2. Type: In-process cache, part of the Backend and Frontend instance.\n3. Straightforward, battle-tested implementation.\n4. Single-flight behavior is available via fetch() and SWR patterns.\n5. Easy to add TTL jitter by wrapping `.set()` with a jittered TTL generator.\n\n#### L2\n\n1. [Upstash Redis, Free tier](https://upstash.com/pricing)\n2. Type: Lambda (Serverless)\n3. One free DB per account.\n4. Commands/API Calls: 500K / month\n5. Bandwidth: 10 GB / month\n6. Storage: 256 MB\n\n#### L3\n\n1. [Supabase PostgreSQL, Free tier](https://supabase.com/pricing)\n2. Type: Instance\n3. Free projects are paused after 1 week of inactivity; Max 2 active projects.\n4. Commands/API Calls: Unlimited\n5. Bandwidth: 5 GB / month\n6. Storage: 500 MB DB, 1 GB files\n7. RAM: 500 MB\n\n## TODO\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Faternus%2Fdeep-dive-cache","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Faternus%2Fdeep-dive-cache","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Faternus%2Fdeep-dive-cache/lists"}