Open-source project – HTTP cache and reverse proxy

What it does

Advanced Cache (advCache): high‑performance in‑memory HTTP cache & reverse proxy built in Rust (tokio, axum). 175k+ RPS, sharded storage, TinyLFU admission, background refresh, Prometheus & OpenTelemetry.

High‑performance, production‑ready in‑memory HTTP cache & reverse proxy built with Rust. Designed for latency‑sensitive workloads with exceptional throughput and minimal memory overhead. AdvCache is a high-performance, production-ready in-memory HTTP cache and reverse proxy designed for latency-sensitive workloads. Built with Rust using tokio and axum , it delivers exceptional throughput with minimal memory overhead and zero-allocation hot paths. Built with async I/O using tokio and axum for high concurrency and low latency. Zero-allocation hot paths with sharded storage minimize lock contention and ensure predictable response times. 175k RPS locally, up to 300k RPS on 24-core bare-metal…from borislavv.github.io

• 
  OpenObserve – Elasticsearch/Datadog alternative2023 · github.com · ▲198

  Hello folks, We are launching OpenObserve. An open source Elasticsearch/Splunk/Datadog alternative written in rust and vue that is super easy to get started with and has 140x lower storage cost compared to elasticsearch. It offers logs, metrics, traces, dashboards, alerts, functions (run aws lambda like functions during ingestion and query to enrich, redact, transform, normalize and whatever else you want to do. Think redacting email IDs from logs, adding geolocation based on IP address, etc). You can do all of this from the UI, no messing up with configuration files. OpenObserve…

• 
  Cuts Long Horizon Inference Costs by 50% via external KV Cache OffloadJul 2026 · github.com · ▲22

  Hey HN, we’re the developers of OpenLake, an open source storage engine for offloading LLM KV caches from GPU memory into a shared tier of RAM and NVMe. We built OpenLake because KV caches are outgrowing GPU memory. A single 256K token conversation on Gemma 4 31B produces approximately 43GB of KV state, more than half the memory of an 80GB H100. The problem becomes even harder across a cluster: a prefix cached on one GPU host is unavailable when the next request lands on a different GPU, forcing the new GPU to repeat work the fleet has already completed. Once the KV cache is offloaded,…

• 
  Pocache, preemptive optimistic caching for Go2024 · github.com · ▲97

  Hey all, I recently published this Go package, and would like to show off as well as get feedback!

• 
  Parseable Log Storage2022 · parseable.com · ▲79

  Over the past few months, we've been building Prism; a fast, developer-first observability UI that's deeply integrated with our open-source database, Parseable. Prism is designed for engineers who debug distributed systems, sometimes at odd hours, and need answers right now, without having to deal with five different tools. Backstory: We spoke to dozens of observability practitioners in large enterprises. Across the board, we heard two things: (1)The RoI on observability tools is hard to justify. (2)OSS leads to tool sprawl, metrics in Grafana, logs in ELK, traces… somewhere. We wanted a…

• 
  Turbocache2023 · ▲84

  Speed up and monitor CI pipelines when using Turborepo

• 
  Quite Fast, sharded cache for Go with LRU/LFU, TTL and object pooling2025 · github.com · ▲12

  Fast(est), sharded Go cache with lock-free reads, self-adaptive SieveTinyLFU, batched async writes and HTTP middleware. - unkn0wn-root/kioshun

• 
  /dev/null▲482

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  Cursor 2.0▲957

  Our first coding model and new interface for agents

  AI · Oct 2025 · cursor.com

• 
  Flask▲806

  Notion + Loom, for video collaboration.

  AI · 2025 · flask.do

• 
  Strange Attractors▲804

  I went down the rabbit hole on a side project and ended up building this: Strange Attractors(https://blog.shashanktomar.com/posts/strange-attractors). It’s built with three.js. Working on it reminded me of the little "maths for fun" exercises I used to do while learning programming in early days. Just trying things out, getting fascinated and geeky, and being surprised by the results. I spent way too much time on this, but it was extreme fun. My favorite part: someone pointed me to the Simone Attractor on Threads. It is a 2D attractor and I asked GPT to extrapolate it to…

  AI · Oct 2025 · blog.shashanktomar.com

• 
  Orchestra▲793

  A chat-centric workspace for builders and modern teams

  Work · 2025 · orch.so

• 
  Autism Simulator▲779

  Hey all, I built this. It’s not trying to capture every autistic experience (that’d be impossible). It’s based on my own lived experience as well as that of friends on the spectrum. I'm trying to give people a feel for what masking, decision fatigue, and burnout can look like day-to-day. That’s hard to explain in words, but easier to show through choices and stats. I'm not trying to "define autism". I’ve gotten good feedback here about resilience, meds, and difficulty tuning. I’ll keep tweaking it. If even a few people walk away thinking, "ah, maybe that’s why my coworker struggles in those…

  Life & fun · 2025 · autism-simulator.vercel.app

• 
  Director▲768

  Lovable for web automation

  AI · 2025 · director.ai