IdeaWell

Project ideas from Hacker News discussions.

Postgres isn't slow, your storage is

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

1. Frustration with AI‑generated content
Many commenters feel that LLM‑crafted blog titles and articles are low‑quality “slop” that detracts from genuine discussion.
- “It feels jarring to see these LLM generated blog titles everywhere, cant bring myself to read the content of it even if I am interested.” – amitpoonia19xyz
- “Oh interesting title … Oh god... slop galore. Disappointment, sadness, dejection, a feeling of being dismissed and not taken seriously…” – joduplessis
- “I’m generally very pro‑AI … But using detectors to label so people can choose seems entirely reasonable to me…” – vidarh

2. Local NVMe vs. network‑attached storage trade‑offs
The debate centers on whether the latency and cost penalties of EBS/SAN are justified by operational flexibility, or if local NVMe with replication offers a simpler, faster alternative.
- “Honestly the network‑attached storage only ever made sense with HDDs, it's ridiculous to have to pay 10x penalty for both iops and latency just for some 'operational flexibility'. You get way simpler and much more robust architecture if you just stick to local NVMe and replication.” – nasretdinov
- “Mostly agree, but then you have to take care of replication, failover, and backup. By using a replicated block storage, you can mostly externalize that problem.” – ngrilly
- “And because those backups lifecycle is usually tied to the instance itself. Someone deletes your instance and your backups are gone as well.” – vasco

3. Database performance hinges on schema and query design, not storage
Several participants argue that poor indexing, inefficient queries, or bad schema choices are the real bottlenecks, and that faster storage alone won’t fix them.
- “Postgres isn't slow, your schema and queries are.” – traceroute66
- “Sit down, think about the queries you are using, and think about how the tables are updated. Now take that and rethink your indexes. Use the right index type for the right situation…” – smitty1110
- “You can spend a week crafting the most optimal query possible … And then you push it to production and get completely different results … Statistics change everything.” – s08148692

🚀 Project Ideas

Generating project ideas…

SlopGuard – AI‑Generated Content Labeler

Summary

  • Detects LLM‑written text in linked articles and adds a small, unobtrusive label next to HN‑style submission timestamps.
  • Lets users filter or hide “slop” submissions while still preserving the option to view labeled content.

Details

Key Value
Target Audience HN readers, tech news aggregators, moderators
Core Feature Real‑time AI‑text detection model (fine‑tuned RoBERTa) that outputs a confidence score; UI shows label and provides a toggle to hide low‑confidence posts
Tech Stack Python (FastAPI, Transformers), Docker, React frontend, optional browser extension (JS/TS)
Difficulty Medium
Monetization Revenue-ready: SaaS subscription $4.99/mo (free tier for limited daily scans)

Notes

  • RugnirViking suggested “some kinda system running the linked page through pangram and then putting the result in a small font next to the submission time.”
  • vidarh noted that “using detectors to label so people can choose seems entirely reasonable … a lot of people who are generally pro‑AI would feel that's fine.”

PGStatSim – Production‑Like Statistics Sandbox for Query Planning

Summary

  • Captures real production pg_stat_statements and column statistics, then reproduces them in a disposable dev database so developers can test query plans with realistic data distributions.
  • Eliminates the “plan changes due to statistics” surprise when moving from staging to production.

Details

Key Value
Target Audience Backend engineers, DBAs, Postgres performance tuners
Core Feature CLI/web tool that snapshots pg_stats, pg_stat_statements, and table sizes; restores them into a local Postgres instance for EXPLAIN ANALYZE testing
Tech Stack Go (CLI), libpq, PostgreSQL extension for stats export, Docker Compose for sandbox DB
Difficulty Medium
Monetization Hobby

Notes

  • s08148692 complained: “You can spend a week crafting the most optimal query possible… Statistics change everything… Queries which produced beautiful plans in local and staging environments breakdown when given production statistics.”
  • nijave advised: “At least run some plans on the real database with real sized data and real statistics.”

SnapSafe – Decoupled, Immutable Backup Exporter for Cloud DBs

Summary

  • Automatically copies RDS/EBS snapshots (or any cloud block‑storage snapshot) to immutable object storage (e.g., S3, GCS) with configurable retention, independent of the source instance’s lifecycle.
  • Provides simple CLI/web UI to restore or copy backups elsewhere without navigating cloud console wizards.

Details

Key Value
Target Audience DevOps engineers, startups using managed Postgres/MySQL on AWS/Azure/GCP
Core Feature Scheduled Lambda/Function that snapshots the volume, exports to object storage, applies lifecycle rules, and notifies via Slack/email
Tech Stack Go CLI, AWS SDK (or Azure/GCP equivalents), Terraform for deployment, Serverless Framework, Prometheus alerts
Difficulty Low
Monetization Revenue-ready: Pay‑as‑you‑go $0.02/GB‑month stored (free tier 10 GB)

Notes

  • vasco lamented: “And because those backups lifecycle is usually tied to the instance itself. Someone deletes your instance and your backups are gone as well.”
  • icedchai said: “It’s kinda crazy that this is the case, and then they make it sooo convoluted to copy those backups elsewhere.”

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