Repositories list

• astra

  Public
  Astra is a structured log search and analytics engine developed by Slack and Salesforce

  kuberneteskafkagrpc+ 3opensearcharmeriaapache-lucene

  Java

  •

  MIT License

  •41•245•0•12•Updated Dec 28, 2025Dec 28, 2025

• circuit

  Public
  ⚡️ A Compose-driven architecture for Kotlin and Android applications.

  androidkotlinarchitecture+ 3udfcomposemvi

  Kotlin

  •

  Apache License 2.0

  •106•1.8k•9•13•Updated Dec 27, 2025Dec 27, 2025

• foundry

  Public
  Gradle and IntelliJ build tooling used in Slack's Android repo

  androidkotlinjava+ 3gradleintellijintellij-plugin

  Kotlin

  •

  Apache License 2.0

  •20•466•9•6•Updated Dec 24, 2025Dec 24, 2025

• go-audit

  Public
  go-audit is an alternative to the auditd daemon that ships with many distros

  Go

  •

  MIT License

  •161•1.7k•15•10•Updated Dec 22, 2025Dec 22, 2025

• nebula

  Public
  A scalable overlay networking tool with a focus on performance, simplicity and security

  Go

  •

  MIT License

  •1.1k•17k•80•32•Updated Dec 19, 2025Dec 19, 2025

• vitess

  Public
  Vitess is a database clustering system for horizontal scaling of MySQL.

  mysqlvitess

  Go

  •

  Apache License 2.0

  •2.3k•4•0•5•Updated Dec 19, 2025Dec 19, 2025

• hakana

  Public
  Another typechecker for Hack, built by Slack

  hackstatic-analysis

  Rust

  •

  MIT License

  •9•95•0•1•Updated Dec 19, 2025Dec 19, 2025

• compose-lints

  Public
  Lint checks to aid with a healthy adoption of Compose

  androidkotlinlint+ 4static-code-analysisstatic-analysiscomposejetpack-compose

  Kotlin

  •

  Apache License 2.0

  •31•459•18•11•Updated Dec 19, 2025Dec 19, 2025

• slack-lints

  Public
  A collection of custom Android/Kotlin lint checks we use in our Android and Kotlin code bases at Slack.

  androidkotlinlint+ 2android-lintstatic-analysis

  Kotlin

  •

  Apache License 2.0

  •16•247•9•12•Updated Dec 18, 2025Dec 18, 2025

• moshi-gson-interop

  Public
  An interop tool for safely mixing Moshi and Gson models in JSON serialization.

  kotlinjavajson+ 2gsonmoshi

  Kotlin

  •

  Apache License 2.0

  •5•43•3•8•Updated Dec 17, 2025Dec 17, 2025

• enzyme-to-rtl-codemod

  Public
  TypeScript

  •

  Apache License 2.0

  •5•23•0•0•Updated Dec 9, 2025Dec 9, 2025

• vscode-hack

  Public
  Hack language & HHVM debugger support for Visual Studio Code

  phphackvscode+ 4hhvmvisual-studio-codevscode-extensionhacklang

  TypeScript

  •

  MIT License

  •45•78•24•3•Updated Nov 24, 2025Nov 24, 2025

• sqlite-python-connect

  Public
  Short bit of code to connect to a sqlite db and run a query in python

  interview-preparation

  Python

  •

  MIT License

  •7•10•0•1•Updated Nov 24, 2025Nov 24, 2025

• spark-gateway

  Public
  REST API for interacting with batch Spark Applications on Kubernetes

  kubernetesgolangspark+ 1livy

  Go

  •

  Apache License 2.0

  •1•13•0•2•Updated Nov 19, 2025Nov 19, 2025

• htmlsanitizer-hack

  Public
  A port of the PHP HTML Purifier originally developed by Edward Z. Yang into Hacklang

  Hack

  •

  GNU Lesser General Public License v2.1

  •5•7•0•0•Updated Nov 19, 2025Nov 19, 2025

• keeper

  Public
  A Gradle plugin that infers Proguard/R8 keep rules for androidTest sources.

  androidtestinggradle+ 4android-testproguardr8android-gradle-plugin

  Kotlin

  •

  Apache License 2.0

  •26•269•4•1•Updated Nov 19, 2025Nov 19, 2025

• hack-sql-fake

  Public
  A library for testing database driven code in Hack

  Hack

  •

  MIT License

  •30•76•11•0•Updated Nov 19, 2025Nov 19, 2025

• go-rsyslog-pstats

  Public
  Parses and forwards rsyslog process stats to a local statsite, statsd, or wire protocol compatible service.

  Go

  •

  MIT License

  •7•21•0•0•Updated Nov 19, 2025Nov 19, 2025

• auto-value-kotlin

  Public
  An AutoValue extension that generates binary and source compatible equivalent Kotlin data classes of AutoValue models.

  kotlinautovalue-extensionsautovalue+ 1kotlinpoet

  Kotlin

  •

  Apache License 2.0

  •1•26•4•9•Updated Nov 19, 2025Nov 19, 2025

• simple-kubernetes-webhook

  Public
  This project is aimed at illustrating how to build a fully functioning kubernetes admission webhook in the simplest way possible.

  Go

  •

  MIT License

  •103•203•3•5•Updated Nov 19, 2025Nov 19, 2025

• hack-json-schema

  Public
  Generate Hack JSON Schema validators based on a JSON Schema.

  Hack

  •

  MIT License

  •15•30•16•2•Updated Nov 19, 2025Nov 19, 2025

• csp-html-webpack-plugin

  Public
  A plugin which, when combined with HTMLWebpackPlugin, adds CSP tags to the HTML output.

  cspwebpackhtml-webpack-plugin

  JavaScript

  •

  MIT License

  •40•168•12•16•Updated Nov 19, 2025Nov 19, 2025

• proto-hack

  Public
  hacklang generator for protobuf

  Hack

  •

  Other

  •5•4•0•3•Updated Nov 19, 2025Nov 19, 2025

• deanimator

  Public
  Go package that can detect animated images and "deanimate" them by rendering just the first frame as a static image.

  Go

  •

  MIT License

  •5•25•1•0•Updated Nov 19, 2025Nov 19, 2025

• EitherNet

  Public
  A multiplatform, pluggable, and sealed API result type for modeling network API responses.

  kotlinjavaretrofit+ 2okhttpmultiplatform

  Kotlin

  •

  Apache License 2.0

  •27•788•4•1•Updated Nov 19, 2025Nov 19, 2025

• snow

  Public
  Python

  •

  MIT License

  •4•2•8•0•Updated Nov 17, 2025Nov 17, 2025

• magic-cli

  Public
  Ruby

  •33•212•0•0•Updated Nov 15, 2025Nov 15, 2025

• backend-interview-prerequisites

  Public
  A project to ensure that your backend onsite interview at Slack runs smoothly.

  Go

  •

  MIT License

  •1•15•0•1•Updated Nov 14, 2025Nov 14, 2025

• hack-graphql

  Public archive
  Playground for a hack graphql server

  Hack

  •

  MIT License

  •7•9•14•4•Updated Nov 12, 2025Nov 12, 2025

• grpc-hack

  Public archive
  A gRPC extension for HHVM

  C++

  •

  Apache License 2.0

  •4•4•0•0•Updated Nov 3, 2025Nov 3, 2025