Project ideas from Hacker News discussions.

Bluesky's active user base is shrinking as its focus expands beyond the app

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

Key Themes from the discussion

Theme	Supporting quote
1. Bluesky is viewed as a niche “bubble” that never reached scale	“collapsed into being a mediocre bubble like Twitter, but without the scale.” — EA‑3167
2. The real win is the open AT‑Protocol, not the app’s user numbers	“A private entity or individual cannot capture the AT Protocol network as happened to Twitter/X, it has already succeeded.” — toomuchtodo
3. The community is seen as an ideological echo chamber with heavy blocking	“There are very, very few non‑left people on Bluesky.” — inigyou
4. Users prefer it over Twitter’s bot‑ridden, extremist‑laden environment	“The loudest are not really the most representative, they’re just the loudest.” — EA‑3167

🚀 Project Ideas

Modular Feed Engine for AT Protocol

Summary

Plug‑in ranking models let users replace default algorithms with custom, transparent feeds.
Core value: Full algorithmic control without needing to code a full client.

Details

Key	Value
Target Audience	Power users, researchers, developers who curate their own social feed
Core Feature	Swappable ML ranking models with UI for preview and management
Tech Stack	FastAPI backend, ONNX model serving, React/Tailwind frontend, OAuth2 auth
Difficulty	Medium
Monetization	Revenue-ready: SaaS $5/mo per active feed

Notes

HN users repeatedly demand “custom feed algorithms” and complain about opaque defaults.
A marketplace for community‑built models would turn the platform into a hacker‑friendly playground.

Unified Moderation Bridge for Decentralized Social Networks

Summary

Centralized blocklist sharing across Bluesky, Mastodon, Threads to reduce spam and harassment.
Solves the fragmentation of moderation tools that users find cumbersome.

Details

Key	Value
Target Audience	Communities plagued by bots and toxic actors; moderation‑focused servers
Core Feature	Distributed moderation hub with shared blocklists and automated report pipelines
Tech Stack	Django + PostgreSQL, Matrix for federation, Kubernetes deployment
Difficulty	High
Monetization	Hobby

Notes

Commenters lament “bot armies” and “shared blocklists are the only useful feature.”
A cross‑platform bridge would let HN users retain control without platform‑specific tools.

Web‑First AT Protocol Client with Bot‑Detection

Summary

Browser‑only client that provides full AT Protocol access, real‑time bot warnings, and simple muting.
Addresses the pain of native‑app lock‑in and poor bot visibility.

Details

Key	Value
Target Audience	Privacy‑conscious users, non‑mobile power users
Core Feature	Web UI with built‑in bot detection ranks, one‑click mute/block, lightweight sync
Tech Stack	Next.js frontend, GraphQL gateway to AT Protocol, Cloudflare Workers for bot scoring
Difficulty	Low
Monetization	Hobby

Notes

Multiple HN posts ask “Why can’t I just use the web?” and complain about mobile‑app‑only MAU metrics.
A web client would let users avoid app stores and improve perceived platform stability.

Topic‑Centric Community Discovery Platform on AT Protocol

Summary

Service that surfaces and curates topic‑based feeds, letting users subscribe to interests rather than users.
Tackles the “no one talks about my niche” frustration expressed by many HN commenters.

Details

Key	Value
Target Audience	Niche hobbyists, professional communities, topic‑driven users
Core Feature	Topic directories with auto‑generated feed collections, recommendation hooks
Tech Stack	Elixir/Phoenix backend, PostgreSQL, PostgreSQL‑based pub/sub, OpenAPI spec for feeds
Difficulty	Medium
Monetization	Revenue-ready: Marketplace $0.10 per feed subscription

Notes

Discussion highlights “there’s nothing to read about my interests” and “topic following is missing.”
Providing a structured topic layer would revitalize engagement and attract users beyond politics.