Build a Redis-compatible database in Rust with Claude as your pair
A developer started KiviDB in February to learn Rust after hitting GC pauses and out-of-memory crashes with Dragonfly at work. He used AI a lot but made the design decisions himself, based on tests Claude picked from his history of troubleshooting sessions. It speaks RESP2 and RESP3, shards the keyspace across threads and uses io_uring on Linux.
Source
murtazayusuf on Hacker News · 2026-10-19 · Project link
Written in our own words. Credit to the original author. Link checked 2026-10-19.
What they did
A developer started KiviDB in February to learn Rust after hitting GC pauses and out-of-memory crashes with Dragonfly at work. He used AI a lot but made the design decisions himself, based on tests Claude picked from his history of troubleshooting sessions. It speaks RESP2 and RESP3, shards the keyspace across threads and uses io_uring on Linux.
Result (as claimed)
57 points on Hacker News; he published a benchmark repo with Terraform and scripts so others can re-check the numbers.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Pick a contained repo or task
Start on a branch or side project where mistakes are cheap.
Install and configure
Set up Claude, AWS. Read what it can run on your machine and limit permissions where possible.
Run it on a real task
Give it a well-scoped issue and let it work. Review the diff like any pull request.
Add guardrails
Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Build a Redis-compatible database in Rust with Claude as your pair What the original author did: A developer started KiviDB in February to learn Rust after hitting GC pauses and out-of-memory crashes with Dragonfly at work. He used AI a lot but made the design decisions himself, based on tests Claude picked from his history of troubleshooting sessions. It speaks RESP2 and RESP3, shards the keyspace across threads and uses io_uring on Linux. Reported result (as claimed by the author): 57 points on Hacker News; he published a benchmark repo with Terraform and scripts so others can re-check the numbers. Source: https://news.ycombinator.com/item?id=50152541 Tools they used: Claude, AWS Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Build a Redis-compatible database in Rust with Claude as your pair What the original author did: A developer started KiviDB in February to learn Rust after hitting GC pauses and out-of-memory crashes with Dragonfly at work. He used AI a lot but made the design decisions himself, based on tests Claude picked from his history of troubleshooting sessions. It speaks RESP2 and RESP3, shards the keyspace across threads and uses io_uring on Linux. Reported result (as claimed by the author): 57 points on Hacker News; he published a benchmark repo with Terraform and scripts so others can re-check the numbers. Source: https://news.ycombinator.com/item?id=50152541 Tools they used: Claude, AWS Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Build a Redis-compatible database in Rust with Claude as your pair What the original author did: A developer started KiviDB in February to learn Rust after hitting GC pauses and out-of-memory crashes with Dragonfly at work. He used AI a lot but made the design decisions himself, based on tests Claude picked from his history of troubleshooting sessions. It speaks RESP2 and RESP3, shards the keyspace across threads and uses io_uring on Linux. Reported result (as claimed by the author): 57 points on Hacker News; he published a benchmark repo with Terraform and scripts so others can re-check the numbers. Source: https://news.ycombinator.com/item?id=50152541 Tools they used: Claude, AWS Category: Dev & ops Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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