Asdf Clone Written in Rust
I think that asdf (https://asdf-vm.com) was a great idea for a project. It helps consolidate installing and running different programming languages into a similar UX. It also is built with a plugin interface that makes it easy to build support for new languages. However it is so slow. I was just testing `node -v` and it was taking ~900ms. That kind of overhead is completely unusable. My shell prompt uses runtimes inside of it for various things so this effectively makes every command take multiple seconds to complete. So I rebuilt it in Rust but using the same plugin ecosystem so…
In plain words
Asdf Clone Written in Rust is a version manager for programming languages built as a faster alternative to asdf. It manages installation and execution of different language runtimes through a unified interface and plugin system compatible with existing asdf plugins. Designed for developers who need quick runtime switching, it adds aliases and fuzzy-matching features while reducing overhead from the original implementation's performance limitations.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I think that asdf (https://asdf-vm.com) was a great idea for a project. It helps consolidate installing and running different programming languages into a similar UX. It also is built with a plugin interface that makes it easy to build support for new languages. However it is so slow. I was just testing `node -v` and it was taking ~900ms. That kind of overhead is completely unusable. My shell prompt uses runtimes inside of it for various things so this effectively makes every command take multiple seconds to complete. So I rebuilt it in Rust but using the same plugin ecosystem so it should be a drop-in replacement. I also added a couple of features that I wanted from asdf (aliases and fuzzy-matching). Let me know what you think! Just know that people have only been using this for a few days so if you see any bugs, they're likely not big hairy issues, just overlooked edge-cases and will be fixed soon. https://github.com/jdxcode/rtx
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