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diff --git a/2025/talks/org-babel.md b/2025/talks/org-babel.md new file mode 100644 index 00000000..adc75eaf --- /dev/null +++ b/2025/talks/org-babel.md @@ -0,0 +1,108 @@ +[[!meta title="Making Org-Babel Reactive"]] +[[!meta copyright="Copyright © 2025 Abhinav Tushar"]] +[[!inline pages="internal(2025/info/org-babel-nav)" raw="yes"]] + +<!-- Initially generated with emacsconf-publish-talk-page and then left alone for manual editing --> +<!-- You can manually edit this file to update the abstract, add links, etc. ---> + + +# Making Org-Babel Reactive +Abhinav Tushar (he/him) - <https://lepisma.xyz>, [@lepisma@mathstodon.xyz](https://mathstodon.xyz/@lepisma), <mailto:abhinav@lepisma.xyz> + +[[!inline pages="internal(2025/info/org-babel-before)" raw="yes"]] + +In Org mode, you can add and execute small snippets of code using +Org-Babel. This lets you have an extremely useful mixed-language notebook like +environment inside Emacs. These days, many notebook systems provide fully +reactive notebooks where changes made in any cell or variable propagate to its +dependents without manual execution. This pattern is very useful for exploratory +data analysis, visualization, and many other use-cases that notebooks are +generally good for. + +Unsurprisingly, we can enable such reactivity in Org-Babel without too much +effort. In this talk, I will cover how to do that while also adding certain +other interaction niceties to make full use of the resultant reactivity. + +About the speaker: + +I am a programmer and machine learning engineer, and I have enjoyed working with +Org-Babel code blocks inside my writings. Other notebooks and platforms have +recently started to adopt fully reactive computation, which is something I have +liked a lot for exploratory analysis. In this talk, I will show how to add +similar reactivity in Org-Babel. + +## Discussion / notes + +- Q: Is there a web page describing this topic? + - A: The repository readme is here + [https://dev.lepisma.xyz/git/ob-rx/](https://dev.lepisma.xyz/git/ob-rx/) + but not sure if you meant any other kind of description. +- Q: If I understand correctly, recomputation happens upon saving; why + not tie it to C-c C-c instead? + - A: You can tie the (interactive) function it to C-c C-c too, I + usually prefer on-save reactivity when I need reactivity. +- Q: You mentioned that you are working on something similar for + JS\... what do you have now? (Thanks! =)) + - A: I don't have something public but I am using a webkit child + frame to show up d3 plots. Will add this in ob-rx once I have it + stable. +- Q: If this could work on C-c C-c and as a minor mode, then it could + perhaps be contributed upstream! Is that planned? + - A: Not thought about it, maybe. +- Q:Is it possible to do something reactive with :result file :file + my-generated.file (?) - yes you got it, it's just I make + intermediate compilation steps in org sometimes using that. + - A: Yes, the core mechanism is to just control the order of + execution for code blocks. So any normal workflow involving + files will also work. I have tried a few file workflows and + ended up needing ob-async so that Emacs doesn't get stuck. But + I am not sure if I understood your exact use case (?). +- Q:how does it handle circular dependencies? + - A: I haven't checked if my approach gets stuck in circular + dependencies (it should), but usually when I am writing + org-babel notebooks, I end up not having circular dependencies. + The check for this should be easy enough though and the + minor-mode could warn if it detects a circular dep. Will add + this in later versions. +- Q: How to get the block dependence plot? Very nice. + - It's a small piece of graphviz code in the minor mode, here + [https://git.sr.ht/\~lepisma/ob-rx/tree/master/item/ob-rx.el#L118](https://git.sr.ht/~lepisma/ob-rx/tree/master/item/ob-rx.el#L118) + - Thank you. +- Q: I'm curious what packages you're using for org appeance. It + looks like a mix of org-modern and some other packages. (Yes I am + also interested in your overall emacs theme) + - A: So my config is here + [https://git.sr.ht/\~lepisma/rogue/tree](https://git.sr.ht/~lepisma/rogue/tree) + but maybe the core part of the look is based on my older blog + + + + +- I'm really looking forward to this talk. +- Excited to see reactivity in org-babel! +- Your emacs theme is very pleasing!! +- I will try this type of dependence block. It looks like it can save + a lots of mental effort to organize my data. +- Excellent talk! +- [https://dev.lepisma.xyz/git/ob-rx](https://dev.lepisma.xyz/git/ob-rx) + \<- source code +- Cool project! +- Great talk and beautiful Emacs! +- This seems to add useful features to org-babel, great job! +- Very cool! +- Very interesting ! +- https://dev.lepisma.xyz/git/ob-rx/ +- this looks useful. +- I'm quite fond of Pluto.jl in Julia, so it'd be nice to have something like this that I can use from inside Emacs. + - Yeah, it also reminded me of Pluto + - But I really prefer working from inside Emacs, so I don't use Pluto that much. This is great + - It could hopefully minimize my usage of rstudio + - I was thinking something like that too for the R folk + - Indeed, rstudio is nice, but it is not emacs +- excellent talk by tushar + +[[!inline pages="internal(2025/info/org-babel-after)" raw="yes"]] + +[[!inline pages="internal(2025/info/org-babel-nav)" raw="yes"]] + + |