Query Optimizer Service

The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++

The transactional Elasticsearch alternative built on Postgres

Chroma's fork of hnswlib - a header-only C++/python library for fast approximate nearest neighbors

Open-source search and retrieval database for AI applications.

Koka language compiler and interpreter

深度学习经典、新论文逐段精读

wait-free 4-level 64-bit pagetable for contiguous low-contention concurrent metadata

Pluggable in-process caching engine to build and scale high performance services

Safe interop between Rust and C++

🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.

Represent large sets and maps compactly with finite state transducers.

Tonbo is an embedded database for serverless and edge runtimes.

A scrollable-tiling Wayland compositor.

Hybrid in-memory and disk cache in Rust

egg is a flexible, high-performance e-graph library

Query Optimizer Service

DuckDB is an analytical in-process SQL database management system

Apache DataFusion Ballista Distributed Query Engine

Compiler for the C3 language

High level Lua 5.4/5.3/5.2/5.1 (including LuaJIT) and Luau bindings to Rust with async/await support

Turso is an in-process SQL database, compatible with SQLite.

微信助手（非web微信版）：定时发送信息；群发信息；自动回复等

Nio is an experimental async runtime for Rust

One Warehouse for Analytics, Search, AI. Snowflake + Elasticsearch + Vector DB — rebuilt from scratch. Unified architecture on your S3.

Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.

The live data layer for apps and AI agents Create up-to-the-second views into your business, just using SQL

Neon: Serverless Postgres. We separated storage and compute to offer autoscaling, code-like database branching, and scale to zero.