GitHub Rising Stars May 2021

One more month passed and time to review Java and Rust repositories on GitHub with the highest number of starts acquired during the last month. All information below collected from GitHub.

We are starting the May review, but if you are interested in April statistics here is the link.



Total stars: 268Last month stars: 236Growth: 88%

About the project: Android Auto Apps Downloader (AAAD) is an app for Android Phones that downloads popular Android Auto 3rd party apps and installs them in the correct way to have them in Android Auto. No root access required in the latest version.


Total stars: 3023Last month stars: 677Growth: 22%

About the project: Airbyte is an open-source EL(T) platform that helps you replicate your data in your warehouses, lakes and databases.


Total stars: 912Last month stars: 157Growth: 17%

About the project: PojavLauncher is a Minecraft: Java Edition launcher for Android and iOS based on Boardwalk. This launcher can launch almost all available Minecraft versions (from rd-132211 to 21w09a (1.17) snapshot, including Combat Test versions). Modding via Forge and Fabric are also supported.


Total stars: 4688Last month stars: 749Growth: 16%

About the project: high-performance Java API Gateway, ShenYu has been used widely in more and more systems in many companies, and it’s simple and convenient to integrate Services/APIs with the high performance and flexibility.

Apache Iceberg

Total stars: 1608Last month stars: 175Growth: 11%

About the project: Apache Iceberg is a new table format for storing large, slow-moving tabular data. It is designed to improve on the de-facto standard table layout built into Hive, Trino, and Spark.

Apache Pulsar

Total stars: 8755Last month stars: 895Growth: 10%

About the project: Apache Pulsar is a cloud-native, distributed messaging and streaming platform originally created at Yahoo! and now a top-level Apache Software Foundation project.

Example Code Repository

Total stars: 1056Last month stars: 87Growth: 8%

About the project: a collection of code examples from blog posts etc.


RustDesk | Your Remote Desktop Software

Total stars: 4275Last month stars: 3004Growth: 70%

About the project:  open-source remote desktop client software, written in Rust. Works out of the box, no configuration required.


Total stars: 4125Last month stars: 2257Growth: 55%

About the project:  multi functional app to find duplicates, empty folders, similar images etc.

Apache Arrow DataFusion

Total stars: 516Last month stars: 279Growth: 54%

About the project:  DataFusion is an extensible query execution framework, written in Rust, that uses Apache Arrow as its in-memory format.

DataFusion supports both an SQL and a DataFrame API for building logical query plans as well as a query optimizer and execution engine capable of parallel execution against partitioned data sources (CSV and Parquet) using threads.

DataFusion also supports distributed query execution via the Ballista crate.

Native Rust implementation of Apache Arrow

Total stars: 342Last month stars: 150Growth: 44%

About the project:  Official Rust implementation of Apache Arrow.

Solana Program Library

Total stars: 259Last month stars: 95Growth: 37%

About the project:  the Solana Program Library (SPL) is a collection of on-chain programs targeting the Sealevel parallel runtime. These programs are tested against Solana’s implementation of Sealevel, solana-runtime, and deployed to its mainnet. 


Total stars: 3013Last month stars: 874Growth: 29%

About the project:  egui is a simple, fast, and highly portable immediate mode GUI library for Rust.


Total stars: 2205Last month stars: 455Growth: 21%

About the project:  Solana is a fast, secure, and censorship resistant blockchain providing the open infrastructure required for global adoption.


  • Apache Pulsar (Java) and RustDesk (Rust) demonstrate impressive growth last 2 months.
  • Java is still present in Android development and there are projects worth to review. AAAD growth this month is amazing, looks like exactly what was needed.
  • It the quite an interesting idea with code examples I really like it.
  • Rust is giving a new breeze for tools development, this is a good sign that more robust, interested, and reliable tools will come. As a long-time Ubuntu user, I’m happy about that.
  • There is a demo page of egui project, definitely recommend seeing it.
  • Airbyte worth some time to review, especially considering they just raised a $26M Series-A round, led by Benchmark.
  • Last but not least, if we speak about the Rust projects – there are traditionally projects related to crypto and blockchain technologies. I think this is a good synergy for both (language & technology) of them.

Feel free to share your observations, ideas, and thoughts in the comments section below, I will be happy to read all of them.

Title image by Michal Dziekonski from Pixabay.

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