Sign in

marimo

@marimo.io
726 followers 5 following 465 posts

An open-source reactive Python notebook: reproducible, git-friendly, execute as scripts, share as apps! GitHub: github.com/marimo-team/marimo Discord: marimo.io/discord?ref=bsky

PostsRepliesMedia
marimo @marimo.io · 11h
Your agent can point back, too. Ask it to walk you through an analysis. Lens takes you from one output to the next, with a short explanation at each step. You move on when you’re ready. See how the results fit together and decide what to investigate next.
101
marimo @marimo.io · 11h
"Make this orange" "Why does this spike?" Just mark an output and leave a note. Your agent gets your selection, a screenshot, and the cell that produced it, plus its dependencies. Through marimo Pair, it can inspect the data, edit the code, and rerun the analysis.
100
marimo @marimo.io · 29/09/2026
If you are teaching, @github filesystem support allows you to provide assets for your students and read them directly from the notebook. Which means you can finally retire these `git clone` instructions from the class materials and reduce that friction.
Vincent showing GitHub filesystem integration in marimo.
100
marimo @marimo.io · 28/09/2026
marimo now supports @prefix_dev Pixi sandboxes! Share portable notebooks with dependencies beyond Python, including CUDA-enabled @PyTorch, ffmpeg and R. Already using Conda or Pixi? Bring your ecosystem to marimo’s reactive notebooks, with Conda and PyPI requirements saved alongside your code.
194
marimo @marimo.io · 21/09/2026
2. Adaptive UIs. Jev really shines in choosing UI elements depending on the context. Interactive marimo-pets widget knows which cell you're viewing and ranks the most useful tools for that code cell. Try here: github.com/ktaletsk/ma...
020
marimo @marimo.io · 21/09/2026
We were thrilled to get early access to @typesafeai's Jev model! Here's what @ktaletsk is building with Jev: 1. jevframe - pandas and polars dataframe adapter to bulk generate new columns with Jev github.com/ktaletsk/je... Try the notebook: molab.marimo.io/github/ktal...
130
marimo @marimo.io · 15/09/2026
In “One shop, one knob at a time,” sliders reshape a shop and rerun the app’s actual accessibility checks. That link between controls and computation made it stand out. Notebook source (local setup required): github.com/Imhaohao/st...
Standard Physics’s marimo notebook, “One shop, one knob at a time.” Controls adjust the gap between display cases, counter height, doorway width, and seating. Below, accessibility findings flag a counter that is too high and a route that is too narrow.
000
marimo @marimo.io · 15/09/2026
Congratulations to our @CoreWeave Hacks "Best Use of marimo" winners, Standard Physics! Their prototype uses iPhone scans to help shop owners spot potential accessibility issues. Built by Brendan Giang, Jerry Yan, Boris Nezlobin & David Wu.
The four members of Standard Physics and marimo judge Konstantin Taletskiy pose together at CoreWeave Hacks after the team won Best Use of marimo.
110
marimo @marimo.io · 04/09/2026
For our cheminformatics competition, you can now win an @Apple Mac Mini M6. You have 1 month left to take a dataset and build a marimo notebook that brings cheminformatics to life. Competition details below.
121
marimo @marimo.io · 25/08/2026
Our community call is in 20 minutes. Another teaser for what's in store:
130
marimo @marimo.io · 18/08/2026
you can give your AI access to capabilities like web search directly from the sidebar.
100
marimo @marimo.io · 18/08/2026
every export format used to live down its own menu path. now it's one dialog, with each format's options in it.
100
marimo @marimo.io · 18/08/2026
variables bound to a data source now carry an icon showing the connection behind them. hover for details, click to jump to it in the sidebar.
111
marimo @marimo.io · 18/08/2026
PSA 0.24.0 is out. here's what's new: @hf.co Hub is now a first-class remote storage backend. marimo detects the Hugging Face auth in your environment and lists your datasets, models, and Spaces in the sidebar.
120
marimo @marimo.io · 04/08/2026
marimo 0.23.16: your notebook now finds your database connections for you. Postgres, MySQL, Trino, AWS, PyIceberg, PySpark, if it's configured on your machine, it shows up in a quick-add UI.
132
marimo @marimo.io · 28/07/2026
Kishan N, a final-year CS student, fine-tuned, benchmarked, and deployed his own 7B coding model without leaving a notebook. 102GB of VRAM on molab, live Gradio demo straight from a cell. Meet Chitti: marimo.io/blog/guest-...
030
marimo @marimo.io · 24/07/2026
Friday: notebooks as slides marimo notebooks are now live, interactive slides. Interact with widgets, edit and re-run code mid-talk, author the whole deck without leaving presentation mode.
120
marimo @marimo.io · 24/07/2026
Thursday: widgets galore 8 new widgets. Our favorite is WidgetDAG, which turns your entire notebook into a live, reactive graph.
100
marimo @marimo.io · 24/07/2026
Wednesday: marimo in PyCharm The marimo plugin brings reactive notebooks to PyCharm and any other JetBrains IDE.
100
marimo @marimo.io · 24/07/2026
Tuesday: marimo anywhere + marimo Glance quarto-marimo, jupyter-book-marimo, and mdx-marimo weave live, reactive Python into Quarto sites, Jupyter Books, and anything built with MDX. Glance is a browser extension that renders raw Python files as a live WASM notebook.
100
marimo @marimo.io · 24/07/2026
Monday: let's pair marimo-pair gives agents direct access to marimo notebooks. New landing page, now in the Claude Code and Codex CLI marketplaces, plus a VS Code/Cursor extension.
100
marimo @marimo.io · 24/07/2026
Python is better than PowerPoint now. You can present marimo notebooks as slides. Widgets stay interactive and you can edit slides live while presenting. No more second window, separate demo, or crossing your fingers.
182
marimo @marimo.io · 23/07/2026
marimo is reactive, which means that it knows in what order variables are declared. So what if you had widgets at your disposal that could leverage that? For launch week, we're releasing some tools that do exactly this.
141
marimo @marimo.io · 22/07/2026
Ask and you shall receive: marimo now runs natively in PyCharm. Open, edit, and run reactive notebooks in @JetBrains without leaving your IDE. Install from the JetBrains Marketplace 👇
162
marimo @marimo.io · 21/07/2026
Open any marimo notebook on GitHub. Click one button. The raw Python turns into a live, interactive notebook you can run, right there in your browser. That's marimo Glance. Free extension for Chrome and Firefox, works on GitHub, gists, and GitLab. Details below.
171
marimo @marimo.io · 21/07/2026
Put a slider in one paragraph and the chart three paragraphs later. The Python cells stay connected. Reactive marimo cells now run inside Quarto, Jupyter Book, and anywhere MDX lives. quarto-marimo, jupyter-book-marimo, mdx-marimo, all open source. More below ⬇️
161
marimo @marimo.io · 19/07/2026
SciPy was a blast! Missed Trevor Manz's anywidget talk or Dylan Madisetti's caching poster? Not to fear, for our first ever launch week is here...5 new announcements next week. What are you hoping it'll be?
031
marimo @marimo.io · 01/07/2026
6. Tiny & Efficient Models
000
marimo @marimo.io · 01/07/2026
5. Beyond Transformers
100
marimo @marimo.io · 01/07/2026
4. Self-Improving & Test-Time Learning
100
marimo @marimo.io · 01/07/2026
3. Attention & Transformer Internals
100
marimo @marimo.io · 01/07/2026
2. Reasoning & RL
100
marimo @marimo.io · 01/07/2026
1. Diffusion and Image Generation
100
marimo @marimo.io · 26/06/2026
4. pick a niche that interests you, even if it's not on the pre-selected list of papers
000
marimo @marimo.io · 26/06/2026
3. use creative & interactive widgets to visualize concepts
100
marimo @marimo.io · 26/06/2026
2. use storytelling aspects to create a narrative
100
marimo @marimo.io · 26/06/2026
1. break up dense text with an attention grabbing visual or clear explainer
100
marimo @marimo.io · 26/06/2026
What actually makes a notebook win? We just extended our competition with @askalphaxiv to July 8, so here's the breakdown.
100
marimo @marimo.io · 25/06/2026
FastAPI Cloud hit public beta and since marimo notebooks are just Python files under the hood, you can deploy one there too. Vincent Warmerdam live-codes it: create_app to fastapi deploy to "hello from marimo" live on the web. A fun party trick in 4 minutes ⬇️
111
marimo @marimo.io · 22/06/2026
double descent is one of the most counterintuitive results in deep learning, and you can't really show it on plain MNIST. MNIST-1D can. huge thanks to @samgreydanus & @hippopedoid for the paper on @askalphaxiv. new video reproduces it from scratch 👇
110
marimo @marimo.io · 09/06/2026
running 2,000 training runs and reporting the best one isn't better science. it's loading the dice. the curse of optimality from @askalphaxiv explained below:
121
marimo @marimo.io · 05/06/2026
Day 5 of our "What can you do with a GPU on molab?" series. Does adding reasoning to open source LLMs actually improve accuracy? Video in the comments ⬇️
111
marimo @marimo.io · 03/06/2026
Day 3 of our "What can you do with a GPU on molab?" series: how long does it take to solve the Traveling Salesman Problem with 2-opt on a GPU? Hint: it's faster than you can say "500 cities in half a millisecond." Video below ⬇️
141
marimo @marimo.io · 02/06/2026
Day 2 of our "What can you do with a GPU on molab?" series: python widgets 🤝 stable diffusion. Draw, hit play, and the model reimagines it in real time, no matter how many prompt changes, region erasures, or random scatterings of pixels you throw at it. Video below ⬇️
110
marimo @marimo.io · 01/06/2026
Sharing is also improved across the board: mirror notebooks from GitHub, share as slides or apps, embed in webpages, and fork from our gallery. Notebooks on molab are public but not discoverable by default, like GitHub Gists.
100
marimo @marimo.io · 01/06/2026
GPUs unlock new use cases. For example, get started with fine-tuning models with @UnslothAI's official molab notebooks: github.com/unslothai/n...
110
marimo @marimo.io · 27/05/2026
"'The lion eats a man' vs 'the man eats a lion.' Same bag of words, opposite meaning, and modern embeddings can't tell them apart. Sorry to both the lion and the man. Vincent Warmerdam tests open source and frontier embedding models on word order, grammar, and negation ⬇️
240
marimo @marimo.io · 21/05/2026
If you can vibe code anything these days ... do we still need notebooks? We're going live in 24 hours to find out with Hamel Husain to discuss. 🗓️ May 22, 2026 at 1 PM PST. Link below ⬇️
100
marimo @marimo.io · 20/05/2026
We're big Polars fans at marimo. The Polars team has been working on something new: it's early, it's fancy, and it ships with a few features that are directly relevant to marimo. Livestream with Thijs Nieuwdorp on May 22, 2026. Link below ⬇️
150
marimo @marimo.io · 20/05/2026
We invited Isaac Flath to stress-test marimo-pair: can a reactive notebook actually give agents the same live kernel access that makes RLMs work? Agentic coding, live bugs, and how much time people spend playing World of Warcraft. More in the full video ⬇️
111