Aphelo
A Redis-like store in C++ with Progressive Rehashing
Details
- External ID
- 47603123
- Source
- HN
- Company
- —
- Product
- Aphelo
- Website domain
- substack.com
- Launched
- April 1, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.11182519280205655
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Enrichment
- Theme
- gpu compute and acceleration tools
- Vertical
- Horizontal
- Function
- Data infrastructure
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- redis-like in-memory store in c++
- Manually corrected
- False
Could you build this?
No Implementing a high-performance in-memory key-value store with non-blocking progressive rehashing, custom memory management, and sub-millisecond p99 latency guarantees in modern C++ requires specialized systems programming skills.
What it would actually take: The architecture involves an event-driven networking layer (epoll/kqueue or io_uring), custom memory allocators (jemalloc integration or arena allocators), and lock-free or single-threaded progressive rehash hash table implementations similar to dict.c in Redis. The hardest part is engineering zero-copy socket I/O and incrementally migrating hash table buckets during active read/write operations without unbounded latency spikes. Building this necessitates deep expertise in systems programming, data structure algorithms, and low-level Linux performance profiling.
Discussion
1 comment analyzed.
Competitors
Other products that read as similar to this one — 1287 launches clear the similarity bar, closest 8 shown.
Attention rank: #1107 of 1288 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 152 days after the earliest competitor.
- casita · github · 2026-09-27 · 71 upvotes · similarity 0.62
- Ember · hn · 2026-02-27 · 5 upvotes · similarity 0.58
- tiny-redis · github · 2026-09-12 · 6 upvotes · similarity 0.57
- laya.cpp · github · 2026-09-20 · 87 upvotes · similarity 0.55
- I evaluated file, vector, graph and RL based memory frameworks · hn · 2026-08-15 · 13 upvotes · similarity 0.55
- Silo · hn · 2026-08-06 · 22 upvotes · similarity 0.55
- X · hn · 2026-06-15 · 5 upvotes · similarity 0.54
- Pgcraft · hn · 2026-05-26 · 6 upvotes · similarity 0.53
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a data infrastructure tool for Media & entertainment yet.