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vmware-labs
webassembly-language-runtimes
Shell2022–2024
vmware-labs / webassembly-language-runtimes

webassembly-language-runtimes

Wasm Language Runtimes provides popular language runtimes (Ruby, Python, …) precompiled to WebAssembly that are tested for compatibility and kept up to date when new versions of upstream languages are released

4Distinct people
7Mentions
0Explicit recommenders
367GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Wasm Language Runtimes provides popular language runtimes (Ruby, Python, …) precompiled to WebAssembly that are tested for compatibility and kept up to date when new versions of upstream languages are released

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month7 dated mentions

Observed mentions: 2022-12-21 11:39:58 UTC to 2024-01-02 23:00:22 UTC.

0123452022-12-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsDec 20222023-01-01 00:00:00 UTC to 2023-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-02-01 00:00:00 UTC to 2023-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-03-01 00:00:00 UTC to 2023-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-04-01 00:00:00 UTC to 2023-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-05-01 00:00:00 UTC to 2023-06-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2023-06-01 00:00:00 UTC to 2023-07-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJun 20232023-07-01 00:00:00 UTC to 2023-08-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-08-01 00:00:00 UTC to 2023-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-09-01 00:00:00 UTC to 2023-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-10-01 00:00:00 UTC to 2023-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-11-01 00:00:00 UTC to 2023-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-12-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-01-01 00:00:00 UTC to 2024-02-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJan 2024

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Dec 20222022-12-01 00:00:00 UTC2023-01-01 00:00:00 UTC101
Jan 20232023-01-01 00:00:00 UTC2023-02-01 00:00:00 UTC000
Feb 20232023-02-01 00:00:00 UTC2023-03-01 00:00:00 UTC000
Mar 20232023-03-01 00:00:00 UTC2023-04-01 00:00:00 UTC000
Apr 20232023-04-01 00:00:00 UTC2023-05-01 00:00:00 UTC000
May 20232023-05-01 00:00:00 UTC2023-06-01 00:00:00 UTC505
Jun 20232023-06-01 00:00:00 UTC2023-07-01 00:00:00 UTC000
Jul 20232023-07-01 00:00:00 UTC2023-08-01 00:00:00 UTC000
Aug 20232023-08-01 00:00:00 UTC2023-09-01 00:00:00 UTC000
Sep 20232023-09-01 00:00:00 UTC2023-10-01 00:00:00 UTC000
Oct 20232023-10-01 00:00:00 UTC2023-11-01 00:00:00 UTC000
Nov 20232023-11-01 00:00:00 UTC2023-12-01 00:00:00 UTC000
Dec 20232023-12-01 00:00:00 UTC2024-01-01 00:00:00 UTC000
Jan 20242024-01-01 00:00:00 UTC2024-02-01 00:00:00 UTC101

What Hacker News says

7 sources
> so I wonder if there's something holding back Python + WASM Yes. The problem is that may python libraries involve compilation of c, rust or other native languages that themselves need a WASM toolchain configured to cross compile to WASM correctly, and potentially patches to support the platform. This toolchain support is coming though. See pyodide.org for one example. But if you just want to grab python.wasm from somewhere and run it on the cli, take a look at something like https://github.com/vmware-labs/webassembly-language-runtimes...
In Browsers are the most likely disruptor of the mobile duopoly
WMWare labs [1] managed to compile Python/Ruby/PHP into WASM distributions. This works if you want to run the language interpreter but is limited when you want your WASM runtime to run in parallel of your own program. This leads to the creation of the "reactor" concept by the community [2]. In the python WASI reactor, we load the libpython compiled for WASM and add a Rust reactor layer. Currently, it supports dynamic registration of Python lambdas and we are working on adding support for whole functions/packages. [1] https://github.com/vmware-labs/webassembly-language-runtimes [2] https://github.com/bytecodealliance/wasmtime/blob/main/docs/...
In Show HN: Metatype – an open-source HTTP/GraphQL query engine for APIs/data/WASM
The Python builds from the WebAssembly language runtimes [0] project target the WebAssembly System Interfaces (WASI) [1]. It allows the Python interpreter to interact with resources like the filesystem. Many server-side Wasm runtimes supports WASI out of the box. For the browser, you need to provide a polyfill to emulate these resources like the one provided by the WASI team [2]. Regarding SQLite, these builds include libsqlite so you should be able to use it :) - [0] https://github.com/vmware-labs/webassembly-language-runtimes - [1] https://wasi.dev/ - [2] https://wasi.dev/polyfill/
In Extending web applications with WebAssembly and Python
(wazero contributor) In case you are interested, you can use Ruby (or any other interpreter compiled to wasm) with wazero. Our CLI shows what most of the runtimes can do, too. $ echo salaboy | wazero run ruby-3.2.0.wasm -ne 'print "Hello "; print' Hello salaboy Of course getting and gems etc gets weird in wasm.. Anyway, thanks to VMware labs for publishing interpreter wasm builds, people can play around. https://github.com/vmware-labs/webassembly-language-runtimes... Random, but enjoy.
In FaaS in Go with WASM, WASI and Rust

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