Honker
Postgres NOTIFY/LISTEN Semantics for SQLite
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HN · launched Apr 23, 2026 · 327 upvotes (top 1%) · 0 views
Niche: push notification tools · 33 launches, 2 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Data infrastructure
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 33 launches in push notification tools →
Could you build this?
No Implementing Postgres-style pub/sub semantics across SQLite requires deep systems programming, handling cross-process synchronization, OS primitives (e.g., shared memory, pipes, or file locks), and database internals. AI coding assistants struggle with high-concurrency race conditions and low-level IPC state machines.
What it would actually take: A production implementation requires systems programming in Rust or C, utilizing OS-level IPC mechanisms (shared memory, POSIX semaphores, or kqueue/epoll) alongside SQLite triggers or WAL hook monitoring. The hard part is ensuring transactional guarantees (delivering notifications strictly on commit and discarding on rollback) without blocking concurrent SQLite readers or writers.
Discussion
20 comments analyzed.
Competitors mentioned: update_hooks (SQLite C API), Postgres listen/notify, Postgres + SQS setup
Concerns raised: CPU/battery impact of 1ms polling on low-power devices, Performance overhead of going through VFS layer vs C API, Behavior under high write contention, File replacement/atomic rename edge cases
Feature requests: Use inotify(7) to eliminate active polling, Support as CRUD message stream for downstream consumers
Competitors
Other products that read as similar to this one : 138 launches clear the similarity bar, closest 8 shown.
Attention rank: #2 of 139 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 174 days after the earliest competitor.
- Liteparser · hn · 2026-03-11 · 5 upvotes · similarity 0.52
- DBOSify · hn · 2026-06-24 · 91 upvotes · similarity 0.47
- pg-query-validate · github · 2026-09-27 · 27 upvotes · similarity 0.46
- streamgres · github · 2026-10-07 · 97 upvotes · similarity 0.45
- Syncular · hn · 2026-08-02 · 79 upvotes · similarity 0.44
- Bunqueue · hn · 2026-02-02 · 39 upvotes · similarity 0.43
- Pglite-oxide · hn · 2026-04-27 · 5 upvotes · similarity 0.43
- PgNimbus 1.0, an open-source PostgreSQL client that sends no telemetry · hn · 2026-10-07 · 5 upvotes · similarity 0.42
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