SafePool – Type-safe object pooling for Go

What it does

In the maker’s words, at launch

Frequent memory allocations can be costly in Go. Go's sync.Pool helps with object reuse but isn't type-safe and can introduce bugs. You need type assertions, and it's easy to accidentally return objects twice or forget to return them at all. SafePool provides type safety with Go generics, eliminating the need for type assertions and making pool usage safer and clearer. For objects that need to live across function boundaries, we added PoolManager. It tracks all objects obtained from pools and ensures they're all returned when the manager is cleaned up, preventing leaks across function calls. We built this after hitting sync.pool issues at Oodle AI, where efficient memory management is critical for processing high-volume telemetry data.

• FA
  Fo: An experimental language which adds generics on top of Go2018 · github.com · ▲165
• AU
  A utility for running exhaustiveness checks on “sum types” in Go2017 · github.com · ▲75
• SC
  sqlc – Compile SQL Queries to Type-Safe Go2019 · conroy.org · ▲45
• 
  go-storage2021 · ▲86

  An application-oriented unified storage layer for Golang.

• SR
  Simple refined types implementation that can prevent Heartbleed2014 · github.com · ▲56
• IW
  I wrote a book about using Lambda with Go2021 · ▲103

  Hi HN! During the last few years, I worked on a few applications built with Go, running on AWS Lambda. As I got to know the platform better, I started to find Go & Lambda to be a really productive combination. The applications were fast, and they ended up being much cheaper to run than what my team & I had built before. It’s probably not the best platform for _every_ application, but I was surprised at how much of our workload worked well on it. As we brought new engineers on to our team and helped them get up to speed with the stack, I found that we were covering a lot of the same topics…

• TL
  The load-bearing vocabulary of Claude▲703

  Life & fun · 10d ago · louisabraham.github.io

• 
  iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo▲329

  Photosynthesis fires two of your iPhone

  Life & fun · 28d ago · photosynthesis.camera

• 
  SoloUno▲310

  Take control of hair pulling, nail biting & skin picking

  Life & fun · 28d ago · solouno.io

• 
  Scroll through all 43252003274489856000 Rubik's Cube states▲295

  Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

  Life & fun · 26d ago · everycube.alen.is

• 
  Expeditione▲265

  The Interactive 3D Encyclopedia

  Life & fun · 21d ago · expeditione.fun

• 
  Eigendrum - Draw any shape and hear what it sounds like as a drum▲243

  Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

  Life & fun · 26d ago · baselashraf81.github.io

• GP
  Gemini Pro 3 imagines the HN front page 10 years from now▲3,346

  Life & fun · Dec 2025 · dosaygo-studio.github.io

• JG
  Jmail – Google Suite for Epstein files▲1,557

  Hi everyone! My name's Luke and I made the original Jmail here alongside Riley Walz. We had a ton of friends collaborate on building out more of the app suite last night in lieue of DOJ's "Epstein files" release. Please AMA!

  Life & fun · Dec 2025 · jmail.world

• 
  Loki.Build▲746

  Design and ship studio-grade landing pages with AI

  AI · Dec 2025 · loki.build

• 
  PlanEat AI▲733

  AI turns your health goals into a 7-day menu & grocery list

  AI · Dec 2025 · planeatai.com

• 2G
  22 GB of Hacker News in SQLite▲730

  Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite&#x2F;wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https:&#x2F;&#x2F;github.com&#x2F;DOSAYGO-STUDIO&#x2F;HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…

  Dev tools · Dec 2025 · hackerbook.dosaygo.com

• 
  CyberCut AI▲723

  AI video studio for viral social clips

  AI · Dec 2025 · cybercut.ai