George Stagg
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gws.phd
George Stagg
@gws.phd
2.3K followers 220 following 13 posts
Software Engineer @ Posit working on webR & WebAssembly. Maths. Physics. I like making things.
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Reposted by George Stagg
jeroenooms.bsky.social
Super excited for the new release of #rstats V8 which now also works in WebR by running js/wasm natively in web worker (thanks to @gws.phd). Will release some cool new packages soon to show the potential of WASM in R ✨
September 27, 2025 at 8:40 AM
gws.phd
PSA for anyone beginning to use #wasm #webR to share R code snippets: We have a new short URL for the webR app: webr.sh!
webR - R in the browser
Interactive R environment running in your browser. Execute R code, create plots, and analyze data without installing anything.
webr.sh
August 14, 2025 at 11:42 AM
gws.phd
Thanks to some joint work with @jeroenooms.bsky.social the latest dev build of webR now supports the {curl} package, along with many other packages that rely on it! 🎉 If you're able to use a WebSocket SOCKS proxy (outside of the browser), you can now use {curl} to make HTTP requests in webR.
July 30, 2025 at 3:29 PM
Reposted by George Stagg
bagder.mastodon.social.ap.brid.gy
Making libcurl work in webassembly

https://jeroen.github.io/notes/webassembly-curl/
Making libcurl work in webassembly
We explain how to make libcurl based applications work in webassembly without changes by tunneling all traffic over a websocket proxy.
jeroen.github.io
July 30, 2025 at 12:02 PM
Reposted by George Stagg
topepo.bsky.social
We're happy to announce that there will be another #rstats Tidy Development Day after the 2025 posit::conf in Atlanta!

www.tidyverse.org/blog/2025/07...
Tidyverse developer day 2025
Join us in Atlanta for tidyverse developer day on September 19, 2025!
www.tidyverse.org
July 21, 2025 at 1:02 PM
gws.phd
webR 0.5.4 has been released! Some new updates include sharing URLs for the webR app, filesystem support for JupyterLite 0.6, and an upgrade to the Emscripten runtime. Read all about it in my latest post on the tidyverse blog: www.tidyverse.org/blog/2025/07...
webR 0.5.4
webR 0.5.4 brings the latest version of R to the browser, with sharing URLs, an upgraded Emscripten runtime, and filesystem support for JupyterLite.
www.tidyverse.org
July 14, 2025 at 12:08 PM
Reposted by George Stagg
pyopensci.org
🚀Quarto Live developer @gws.phd shows how to make interactive, explorable, & reproducible docs. #Python & R in the browser—no setup, no servers!

✅ Live coding exercises & auto-checking
✅ Works on mobile!

📺 Watch now → buff.ly/41BnAsT
#Quarto #DataScience #WebAssembly
Quarto Live: WebAssembly powered data science learning | pyOpenSci
🚀 How Quarto Live Brings Code to Life in the Browser! 🌍✨Quarto Live takes interactive coding & publishing to the next level with WebAssembly-powered execut...
buff.ly
March 4, 2025 at 5:20 PM
Reposted by George Stagg
incidentalfindings.org
As far as I’m concerned, #webr and #shinylive is indistinguishable from magic.

I can’t believe that since first installing #quarto-webr a few hours ago till now, I’ve gotten a relatively complicated #shinyapp exported, deployed, and running serverless.

This is magic. #rstats
December 21, 2024 at 6:41 PM
Reposted by George Stagg
clauswilke.com
I have now also ported the color vision deficiency simulation app to Shiny live. Advantage is this runs entirely in your browser, even though you "upload" the image it never leaves your computer.
January 10, 2025 at 5:15 AM
gws.phd
Recently I've been working on getting #polars running in #pyodide. This was a fun one, even requiring patches to LLVM's #wasm writer! Everything has now been upstreamed and earlier this week Pyodide v0.27.0 released, including a Wasm build of Polars usable in Pyodide, Shinylive and Quarto Live 🎉
A screenshot of a Pyodide REPL executing Polars code: import polars as pl import requests r = requests.get("https://raw.githubusercontent.com/pola-rs/polars/refs/heads/main/examples/datasets/foods2.csv") pl.read_csv(r.content).group_by("category").mean() A screenshot of a Quarto Live code cell executing Polars code: import polars as pl import requests r = requests.get("https://raw.githubusercontent.com/pola-rs/polars/refs/heads/main/examples/datasets/foods2.csv") pl.read_csv(r.content).group_by("category").mean() A screenshot of a Shinylive app using Polars code: from shiny import App, render, ui import polars as pl from pathlib import Path app_ui = ui.page_fluid( ui.input_select("cyl", "Select Cylinders", choices=["4", "6", "8"]), ui.output_data_frame("filtered_data") ) def server(input, output, session): df = pl.read_csv(Path(__file__).parent / "mtcars.csv") @output @render.data_frame def filtered_data(): return (df .filter(pl.col("cyl") == int(input.cyl())) .select(["mpg", "cyl", "hp"])) app = App(app_ui, server)
January 4, 2025 at 11:59 AM
Reposted by George Stagg
jennybryan.bsky.social
📦 usethis 3.1.0 📦 is released. `use_vignette()` and `use_article()` can now help you initiate a Quarto (.qmd) vignette or article. #rstats

usethis.r-lib.org/news/index.h...
Changelog
usethis.r-lib.org
November 26, 2024 at 3:55 PM
Reposted by George Stagg
colinfay.bsky.social
#RStats I'm so happy to finally share what we've been experimenting on at ThinkR for the past couple of weeks — A native mobile app that can run R code through #webR

Read more at 👉 rtask.thinkr.fr/youve-been-w...
November 19, 2024 at 12:44 PM
Reposted by George Stagg
jeroenooms.bsky.social
Slides on how R-universe uses @cloudflare.social to get fast global routing and caching: jeroen.github.io/technotes2024
November 19, 2024 at 12:57 PM
Reposted by George Stagg
cderv.bsky.social
We’ve been working hard on next quarto version and it is coming out soon. It is already available so if you are ok to try it please do ! Feedback welcome to find the remaining bugs that could still be hidden. Thanks !
November 17, 2024 at 8:21 AM
Reposted by George Stagg
grrrck.xyz
I made a starter pack with #Shiny for #RStats and #Python devs and friends! And if you're a Shiny person and want to be included, let me know.
go.bsky.app/BFEQ1HY
November 8, 2024 at 7:33 PM
gws.phd
I've written a series of blog posts about what I've been up to over the last few months! 📝

In the posts I talk about webR, R Shinylive, and a new Quarto extension for interactive code exercises.

Take a look if you're interested in the latest for R for WebAssembly.
www.tidyverse.org/blog/2024/10...
WebAssembly roundup part 1: webR 0.4.2 - Tidyverse
First in a series of blog posts about what's new in R for WebAssembly. The latest release of webR 0.4.2 is now available, with updates to the viewer mechanism, support for displaying htmlwidgets, an I...
www.tidyverse.org
November 6, 2024 at 3:12 PM
Reposted by George Stagg
posit.co
No trick, all treats - posit::conf(2024) talks are now on YouTube! 🍬

Over a thousand people gathered in Seattle and online to dive into all things open-source data science. With 100+ talks, there's a lot to explore!

Check out the playlist: www.youtube.com/playlist?lis...

#RStats #Python
posit conf 2024 talk recordings and workshop materials
October 31, 2024 at 2:00 PM
Reposted by George Stagg
hadley.nz
R in Production, r-in-production.org, is a new book that will help you put R into production, coupled with (in the near future) new tools to make the process less painful. I'm working on this with @thomasp85.com , @gaborcsardi.bsky.social, and @hfrick.bsky.social.
R in Production
r-in-production.org
October 29, 2024 at 10:15 PM
Reposted by George Stagg
coatless.bsky.social
🎓 Excited to speak at @pyopensci.bsky.social 's Fall Festival! Join me for insights on the future of #DataScience education using #WebAssembly tools like #Pyodide & #webR with #Quarto.

📅 Nov 1st, Workshop: "Reproducible reports and presentations"

🧵 Thread below!
Screenshot of the next generation of data science education website talk.
October 29, 2024 at 5:38 AM
Reposted by George Stagg
tylermw.com
‼️ New blog post! I discuss the benefits of developing C/C++ code for R with the new #Positron IDE (from @posit.co) and provide functions to add to your user profile to automate some current pain points away!

Developing C/C++ code for R with Positron
Link: www.tylermw.com/posts/coding...

#RStats
October 26, 2024 at 6:31 PM
Reposted by George Stagg
posit.co
Winners of the 2024 Shiny Contest
posit.co/blog/winners...
#posit #rstats #shiny #python #pydata
Winners of the 2024 Shiny Contest - Posit
posit.co
October 22, 2024 at 5:30 PM
Reposted by George Stagg
jeremy-data.bsky.social
I made an #RSats starter pack. Includes a touch of Linux, Python, and dataviz but mostly R. go.bsky.app/Ki7PjpS
October 20, 2024 at 1:16 PM
gws.phd
I recently wrote a deep-dive post discussing the patches we make to LLVM Flang to cross-compile #wasm objects from Fortran source for #webR. It's at gws.phd/posts/fortra..., do take a look if you're interested. There are also some fun little interactive BLAS & LAPACK demos near the end of the post.
A screenshot of a demo app consisting of a box on the left and a histogram on the right. The digit 4 has been hand-written into the box on the left (e.g. with a mouse or touchscreen). The histogram shows a probability distribution over the digits 0-9, attempting to classify which digit has been drawn. In this case, the bar for the digit "4" is the highest.
March 14, 2024 at 12:14 PM