Mariano Guerra
@marianoguerra.org
🧑🏽💻 Co-founder of Gloodata & Instadeq
📘 Co-author of https://wasmfromthegroundup.com/
📰 Future of Coding Weekly: https://newsletter.futureofcoding.org/join/
📘 Co-author of https://wasmfromthegroundup.com/
📰 Future of Coding Weekly: https://newsletter.futureofcoding.org/join/
Reposted by Mariano Guerra
🎉 ¡Buenas noticias! 🐍
Con muchísima alegría @manux.bsky.social y yo les contamos que ya liberamos el libro "Python para Ciencia y Tecnología", completo, en castellano… ¡y totalmente gratis! 😍📘
💾 Pueden descargar el PDF desde 👉 libropython.science
Con muchísima alegría @manux.bsky.social y yo les contamos que ya liberamos el libro "Python para Ciencia y Tecnología", completo, en castellano… ¡y totalmente gratis! 😍📘
💾 Pueden descargar el PDF desde 👉 libropython.science
November 10, 2025 at 4:55 PM
🎉 ¡Buenas noticias! 🐍
Con muchísima alegría @manux.bsky.social y yo les contamos que ya liberamos el libro "Python para Ciencia y Tecnología", completo, en castellano… ¡y totalmente gratis! 😍📘
💾 Pueden descargar el PDF desde 👉 libropython.science
Con muchísima alegría @manux.bsky.social y yo les contamos que ya liberamos el libro "Python para Ciencia y Tecnología", completo, en castellano… ¡y totalmente gratis! 😍📘
💾 Pueden descargar el PDF desde 👉 libropython.science
📰 Future of Coding Weekly
🧠 micrograd
🎥 I am not dead yet
📝 The Hidden Gem in S/SL: Why Dataless Languages Matter
🔗 newsletter.futureofcoding.org/posts/future...
🧠 micrograd
🎥 I am not dead yet
📝 The Hidden Gem in S/SL: Why Dataless Languages Matter
🔗 newsletter.futureofcoding.org/posts/future...
November 10, 2025 at 10:58 AM
📰 Future of Coding Weekly
🧠 micrograd
🎥 I am not dead yet
📝 The Hidden Gem in S/SL: Why Dataless Languages Matter
🔗 newsletter.futureofcoding.org/posts/future...
🧠 micrograd
🎥 I am not dead yet
📝 The Hidden Gem in S/SL: Why Dataless Languages Matter
🔗 newsletter.futureofcoding.org/posts/future...
In 50 years there will be a neural essay that argues "clearly this was scripted by aliens, no human could have written it by hand before llms":
find . -name '*_res.json' -exec jq '.parsing_res_list[].block_label' {} \; | awk '{count[$0]++} END {for (i in count) print count[i], i}' | sort -nr
find . -name '*_res.json' -exec jq '.parsing_res_list[].block_label' {} \; | awk '{count[$0]++} END {for (i in count) print count[i], i}' | sort -nr
November 5, 2025 at 2:11 PM
In 50 years there will be a neural essay that argues "clearly this was scripted by aliens, no human could have written it by hand before llms":
find . -name '*_res.json' -exec jq '.parsing_res_list[].block_label' {} \; | awk '{count[$0]++} END {for (i in count) print count[i], i}' | sort -nr
find . -name '*_res.json' -exec jq '.parsing_res_list[].block_label' {} \; | awk '{count[$0]++} END {for (i in count) print count[i], i}' | sort -nr
Reposted by Mariano Guerra
Ever thought about writing #WebAssembly by hand? 🤔
Authors Patrick @dubroy.com and @marianoguerra.org think it's crucial for learning. They join #WasmAssembly host Thomas Steiner to discuss their ebook, "WebAssembly from the Ground Up" → goo.gle/3Ln67Pp
Authors Patrick @dubroy.com and @marianoguerra.org think it's crucial for learning. They join #WasmAssembly host Thomas Steiner to discuss their ebook, "WebAssembly from the Ground Up" → goo.gle/3Ln67Pp
November 4, 2025 at 9:00 PM
Ever thought about writing #WebAssembly by hand? 🤔
Authors Patrick @dubroy.com and @marianoguerra.org think it's crucial for learning. They join #WasmAssembly host Thomas Steiner to discuss their ebook, "WebAssembly from the Ground Up" → goo.gle/3Ln67Pp
Authors Patrick @dubroy.com and @marianoguerra.org think it's crucial for learning. They join #WasmAssembly host Thomas Steiner to discuss their ebook, "WebAssembly from the Ground Up" → goo.gle/3Ln67Pp
Tanenbaum–Torvalds debate 2.0
On the fact that the Atlantic Ocean has two sides 2.0
On the fact that the Atlantic Ocean has two sides 2.0
November 1, 2025 at 10:28 AM
Tanenbaum–Torvalds debate 2.0
On the fact that the Atlantic Ocean has two sides 2.0
On the fact that the Atlantic Ocean has two sides 2.0
Reposted by Mariano Guerra
Today I presented to the Wasm CG a proposal for fine-grained dynamic code generation as a core WebAssembly feature. The proposal is now at phase 1!
github.com/WebAssembly/...
Also immortalized in song: suno.com/song/19e0679...
github.com/WebAssembly/...
Also immortalized in song: suno.com/song/19e0679...
GitHub - WebAssembly/jit-interface: WebAssembly specification, reference interpreter, and test suite for the jit-interfaces proposal.
WebAssembly specification, reference interpreter, and test suite for the jit-interfaces proposal. - WebAssembly/jit-interface
github.com
October 29, 2025 at 9:49 PM
Today I presented to the Wasm CG a proposal for fine-grained dynamic code generation as a core WebAssembly feature. The proposal is now at phase 1!
github.com/WebAssembly/...
Also immortalized in song: suno.com/song/19e0679...
github.com/WebAssembly/...
Also immortalized in song: suno.com/song/19e0679...
Reposted by Mariano Guerra
Periodic reminder (since I apparently don't talk about it enough) —
If you are interested in a hands-on way to learn #wasm, check out the book that @marianoguerra.org and I wrote together!
If you are interested in a hands-on way to learn #wasm, check out the book that @marianoguerra.org and I wrote together!
Excited to announce the official launch of our online book, WebAssembly from the Ground Up! 🎉
It's the book we wish we'd had 3 years ago.
No messing with tools and frameworks. It's a hands-on guide to the core of Wasm: the instruction set and module format.
Link below. 👇
It's the book we wish we'd had 3 years ago.
No messing with tools and frameworks. It's a hands-on guide to the core of Wasm: the instruction set and module format.
Link below. 👇
October 29, 2025 at 12:29 PM
Periodic reminder (since I apparently don't talk about it enough) —
If you are interested in a hands-on way to learn #wasm, check out the book that @marianoguerra.org and I wrote together!
If you are interested in a hands-on way to learn #wasm, check out the book that @marianoguerra.org and I wrote together!
Reposted by Mariano Guerra
Working on a diagram for an upcoming @wasmgroundup.com blog post.
October 29, 2025 at 10:24 AM
Working on a diagram for an upcoming @wasmgroundup.com blog post.
Reposted by Mariano Guerra
(Needed a thread here where I can post new examples!)
Dodrio (by Nick Fitzgerald) is an experimental virtual DOM library for Rust and Wasm. It uses bump allocation for the VDOM nodes and uses a stack machine language to represent change lists: github.com/fitzgen/dodrio
Dodrio (by Nick Fitzgerald) is an experimental virtual DOM library for Rust and Wasm. It uses bump allocation for the VDOM nodes and uses a stack machine language to represent change lists: github.com/fitzgen/dodrio
October 29, 2025 at 7:25 AM
(Needed a thread here where I can post new examples!)
Dodrio (by Nick Fitzgerald) is an experimental virtual DOM library for Rust and Wasm. It uses bump allocation for the VDOM nodes and uses a stack machine language to represent change lists: github.com/fitzgen/dodrio
Dodrio (by Nick Fitzgerald) is an experimental virtual DOM library for Rust and Wasm. It uses bump allocation for the VDOM nodes and uses a stack machine language to represent change lists: github.com/fitzgen/dodrio
Reposted by Mariano Guerra
i'm hiring a 'growth engineer' to work side-by-side with me at val.town in brooklyn
we're a small team on a mission to spread the joy of programming
we're looking for someone self-directed, loves talking to users, write english & typescript, and own projects end-to-end
if this is you, reach out!!
we're a small team on a mission to spread the joy of programming
we're looking for someone self-directed, loves talking to users, write english & typescript, and own projects end-to-end
if this is you, reach out!!
October 28, 2025 at 2:48 PM
i'm hiring a 'growth engineer' to work side-by-side with me at val.town in brooklyn
we're a small team on a mission to spread the joy of programming
we're looking for someone self-directed, loves talking to users, write english & typescript, and own projects end-to-end
if this is you, reach out!!
we're a small team on a mission to spread the joy of programming
we're looking for someone self-directed, loves talking to users, write english & typescript, and own projects end-to-end
if this is you, reach out!!
Reposted by Mariano Guerra
This week the W3C WebAssembly Community Group is holding an in-person meeting in Munich.
We (@dubroy.com and @marianoguerra.org) are planning to be there. Patrick tomorrow, and both of us on Thursday for the Research Day.
If you see us, come say hi!
We (@dubroy.com and @marianoguerra.org) are planning to be there. Patrick tomorrow, and both of us on Thursday for the Research Day.
If you see us, come say hi!
October 27, 2025 at 4:44 PM
This week the W3C WebAssembly Community Group is holding an in-person meeting in Munich.
We (@dubroy.com and @marianoguerra.org) are planning to be there. Patrick tomorrow, and both of us on Thursday for the Research Day.
If you see us, come say hi!
We (@dubroy.com and @marianoguerra.org) are planning to be there. Patrick tomorrow, and both of us on Thursday for the Research Day.
If you see us, come say hi!
new js directive just droped 🤯
October 27, 2025 at 12:58 PM
new js directive just droped 🤯
Devs can always be counted on to do the right thing…after they have implemented it 5 times in js
-- Churchill
Anything that can be done, will be done in js
-- Murphy's Law
PS: with better branding, DX, learning curve and documentation than the "right way"
-- Churchill
Anything that can be done, will be done in js
-- Murphy's Law
PS: with better branding, DX, learning curve and documentation than the "right way"
October 27, 2025 at 12:51 PM
Devs can always be counted on to do the right thing…after they have implemented it 5 times in js
-- Churchill
Anything that can be done, will be done in js
-- Murphy's Law
PS: with better branding, DX, learning curve and documentation than the "right way"
-- Churchill
Anything that can be done, will be done in js
-- Murphy's Law
PS: with better branding, DX, learning curve and documentation than the "right way"
📰 Future of Coding Weekly
🌳 Cope and Drag: DSL for gradually improving diagrams
📝 Simple Assembler and Simple CPUs First
🎥 ROONS! A new marble computer
🔗 newsletter.futureofcoding.org/posts/future...
🌳 Cope and Drag: DSL for gradually improving diagrams
📝 Simple Assembler and Simple CPUs First
🎥 ROONS! A new marble computer
🔗 newsletter.futureofcoding.org/posts/future...
October 26, 2025 at 10:25 PM
📰 Future of Coding Weekly
🌳 Cope and Drag: DSL for gradually improving diagrams
📝 Simple Assembler and Simple CPUs First
🎥 ROONS! A new marble computer
🔗 newsletter.futureofcoding.org/posts/future...
🌳 Cope and Drag: DSL for gradually improving diagrams
📝 Simple Assembler and Simple CPUs First
🎥 ROONS! A new marble computer
🔗 newsletter.futureofcoding.org/posts/future...
Reposted by Mariano Guerra
Introducing SuperSonic - the full power of SuperCollider's audio engine running in a real-time high-priority AudioWorklet thread in the browser: www.patreon.com/posts/introd...
Introducing SuperSonic - SuperCollider's audio engine in a Web AudioWorklet. | Sam Aaron
Get more from Sam Aaron on Patreon
www.patreon.com
October 24, 2025 at 8:40 PM
Introducing SuperSonic - the full power of SuperCollider's audio engine running in a real-time high-priority AudioWorklet thread in the browser: www.patreon.com/posts/introd...
Reposted by Mariano Guerra
ICYMI: @marianoguerra.org and I had a fun conversation with Thomas on the WasmAssembly podcast, all about our book @wasmgroundup.com.
You can watch it here, or find it wherever fine podcasts are sold.
You can watch it here, or find it wherever fine podcasts are sold.
📢 New #WasmAssembly podcast 🎙️ episode:
#WebAssembly from the Ground Up with @dubroy.com and @marianoguerra.org. Learn how they're teaching #Wasm by building a compiler in JavaScript and why writing Wasm by hand is crucial!
🍿 www.youtube.com/watch?v=dRdD...
🎧 wasmassembly.libsyn.com/webassembly-...
#WebAssembly from the Ground Up with @dubroy.com and @marianoguerra.org. Learn how they're teaching #Wasm by building a compiler in JavaScript and why writing Wasm by hand is crucial!
🍿 www.youtube.com/watch?v=dRdD...
🎧 wasmassembly.libsyn.com/webassembly-...
WebAssembly from the Ground Up with Patrick Dubroy and Mariano Guerra
YouTube video by Chrome for Developers
www.youtube.com
October 21, 2025 at 2:19 PM
ICYMI: @marianoguerra.org and I had a fun conversation with Thomas on the WasmAssembly podcast, all about our book @wasmgroundup.com.
You can watch it here, or find it wherever fine podcasts are sold.
You can watch it here, or find it wherever fine podcasts are sold.
Reposted by Mariano Guerra
📢 New #WasmAssembly podcast 🎙️ episode:
#WebAssembly from the Ground Up with @dubroy.com and @marianoguerra.org. Learn how they're teaching #Wasm by building a compiler in JavaScript and why writing Wasm by hand is crucial!
🍿 www.youtube.com/watch?v=dRdD...
🎧 wasmassembly.libsyn.com/webassembly-...
#WebAssembly from the Ground Up with @dubroy.com and @marianoguerra.org. Learn how they're teaching #Wasm by building a compiler in JavaScript and why writing Wasm by hand is crucial!
🍿 www.youtube.com/watch?v=dRdD...
🎧 wasmassembly.libsyn.com/webassembly-...
WebAssembly from the Ground Up with Patrick Dubroy and Mariano Guerra
YouTube video by Chrome for Developers
www.youtube.com
October 20, 2025 at 6:22 PM
📢 New #WasmAssembly podcast 🎙️ episode:
#WebAssembly from the Ground Up with @dubroy.com and @marianoguerra.org. Learn how they're teaching #Wasm by building a compiler in JavaScript and why writing Wasm by hand is crucial!
🍿 www.youtube.com/watch?v=dRdD...
🎧 wasmassembly.libsyn.com/webassembly-...
#WebAssembly from the Ground Up with @dubroy.com and @marianoguerra.org. Learn how they're teaching #Wasm by building a compiler in JavaScript and why writing Wasm by hand is crucial!
🍿 www.youtube.com/watch?v=dRdD...
🎧 wasmassembly.libsyn.com/webassembly-...
📰 Future of Coding Weekly
🧬 Literate tracing
🧵 Undetermined Weaving with Machines
📑 Early Interpreters
🔗 newsletter.futureofcoding.org/posts/future...
🧬 Literate tracing
🧵 Undetermined Weaving with Machines
📑 Early Interpreters
🔗 newsletter.futureofcoding.org/posts/future...
October 20, 2025 at 8:33 AM
📰 Future of Coding Weekly
🧬 Literate tracing
🧵 Undetermined Weaving with Machines
📑 Early Interpreters
🔗 newsletter.futureofcoding.org/posts/future...
🧬 Literate tracing
🧵 Undetermined Weaving with Machines
📑 Early Interpreters
🔗 newsletter.futureofcoding.org/posts/future...
Reposted by Mariano Guerra
Gleam v1.13.0 is out now! 👻
gleam.run/news/formali...
gleam.run/news/formali...
Formalising external APIs | Gleam programming language
News post: Gleam v1.13.0 released
gleam.run
October 19, 2025 at 12:34 PM
Gleam v1.13.0 is out now! 👻
gleam.run/news/formali...
gleam.run/news/formali...
The purpose of a person is what it does
October 19, 2025 at 8:57 AM
The purpose of a person is what it does
vibecard: todo app speedrun take 2
live coding a todo app faster than the previous one with the help of a new vibecard feature: macros
www.youtube.com/watch?v=D149...
live coding a todo app faster than the previous one with the help of a new vibecard feature: macros
www.youtube.com/watch?v=D149...
vibecard: todo app speedrun using macros
YouTube video by Mariano Guerra
www.youtube.com
October 17, 2025 at 2:47 PM
vibecard: todo app speedrun take 2
live coding a todo app faster than the previous one with the help of a new vibecard feature: macros
www.youtube.com/watch?v=D149...
live coding a todo app faster than the previous one with the help of a new vibecard feature: macros
www.youtube.com/watch?v=D149...
TIL that racket and common lisp have "slots" in macros via keyword arguments with defaults.
October 15, 2025 at 3:33 PM
TIL that racket and common lisp have "slots" in macros via keyword arguments with defaults.
Reposted by Mariano Guerra
ai-grep -- when you're looking for something, but you're not exactly sure what
npm i -g ai-grep
github.com/szymonkalisk...
npm i -g ai-grep
github.com/szymonkalisk...
October 15, 2025 at 7:25 AM
ai-grep -- when you're looking for something, but you're not exactly sure what
npm i -g ai-grep
github.com/szymonkalisk...
npm i -g ai-grep
github.com/szymonkalisk...
happy that an llm can help me write
```
INPUT_PATH=$(find $TARGET_DIR -type f -printf '%T@ %p\n' | sort -n | tail -1 | cut -d' ' -f2-)
OUTPUT_PATH="${INPUT_PATH%.*}-edit.${INPUT_PATH##*.}"
```
but sad that this is still the simplest way to automate something & that I need an AI to help me write it
```
INPUT_PATH=$(find $TARGET_DIR -type f -printf '%T@ %p\n' | sort -n | tail -1 | cut -d' ' -f2-)
OUTPUT_PATH="${INPUT_PATH%.*}-edit.${INPUT_PATH##*.}"
```
but sad that this is still the simplest way to automate something & that I need an AI to help me write it
October 13, 2025 at 12:43 PM
happy that an llm can help me write
```
INPUT_PATH=$(find $TARGET_DIR -type f -printf '%T@ %p\n' | sort -n | tail -1 | cut -d' ' -f2-)
OUTPUT_PATH="${INPUT_PATH%.*}-edit.${INPUT_PATH##*.}"
```
but sad that this is still the simplest way to automate something & that I need an AI to help me write it
```
INPUT_PATH=$(find $TARGET_DIR -type f -printf '%T@ %p\n' | sort -n | tail -1 | cut -d' ' -f2-)
OUTPUT_PATH="${INPUT_PATH%.*}-edit.${INPUT_PATH##*.}"
```
but sad that this is still the simplest way to automate something & that I need an AI to help me write it