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Nova

@trynova.dev
117 followers 25 following 11 posts

a JavaScript (ECMAScript) and WebAssembly engine written in Rust and following data-oriented design principles

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Nova @trynova.dev · 15/03/2026
You won't believe it (I'm not sure we do), but Nova is now in the major version era!
trynova.dev
Nova 1.0 · Nova
Entering the major release era.
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AapoAlas @aapoalas.trynova.dev · 09/01/2026
trynova.dev/blog/garbage... Last Sunday I discovered that lifetimes on #Rustlang garbage collected handles should be contravariant on their lifetime parameter. This is an open research question, but I think this opens a path to meaningful lifetimes on self-referential structs. Check it out!
trynova.dev
Garbage collection is contrarian · Nova
Modeling unrooted handles to garbage collected data using contravariant lifetimes.
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Dean Srebnik @loading.trynova.dev · 05/08/2025
enum support I implemented for @trynova.dev is now available in Andromeda in v0.1.0draft10
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Nova @trynova.dev · 08/05/2025
New blog post about Nova #JavaScript engine's NLnet NGI Zero grant and what @aapoalas.trynova.dev has been up to with that support! #Rustlang autoborrow traits also mentioned!
trynova.dev
Working for the Internet · Nova
Nova JavaScript engine is now supported by an NLnet grant!
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Nova @trynova.dev · 21/03/2025
@aapoalas.trynova.dev / Nova #JavaScript engine has received funding from NLnet's NGI Zero fund for developing the engine! The funding is for bringing the engine closer to full Test262 compliance, and for developing the data-oriented heap design and proving its worth. Exciting times ahead!
nlnet.nl
NLnet; Welcome to NLnet Foundation
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Nova @trynova.dev · 30/12/2024
The year is ending, and Nova JavaScript engine has gone from rags to fairly nice rags during this year. It's time to look backwards and forwards! #javascript #typescript
trynova.dev
2024 - Looking backwards and forwards · Nova
On forward and lateral progress.
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AapoAlas @aapoalas.trynova.dev · 30/12/2024
I'll be writing a year's end blog post on Nova JavaScript engine but here's something you can do while you wait (You were waiting for that, weren't you?): Star us on GitHub to make us break 1k stars before the year's end! Stars are the ultimate currency, after all.
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Nova @trynova.dev · 30/12/2024
Nova JavaScript engine is only a hair's breadth away from 1k GitHub stars! Now that would be a nice way to end the year, wouldn't it?
github.com
GitHub - trynova/nova: JS engine lolz
JS engine lolz. Contribute to trynova/nova development by creating an account on GitHub.
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AapoAlas @aapoalas.trynova.dev · 14/12/2024
@oxide.computer & Friends recent episode made me ponder about organising an online conf around data-oriented design: Create the thing I want to see, you know. Would you be interested?
oxide.computer
Conferences in Tech / Oxide
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Nova @trynova.dev · 11/12/2024
Dtrace.conf from the @oxide.computer is live now, our very own @aapoalas.trynova.dev is doing a talk, check out the Livestream here: www.youtube.com/live/KQN1t2q...
youtube.com
YouTube
Share your videos with friends, family, and the world
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Dean Srebnik @loading.trynova.dev · 06/12/2024
@trynova.dev has typescript support handled without an extra step behind the typescript feature! check out nova trynova.dev
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Nova @trynova.dev · 06/12/2024
The downside in a moving GC with unrooted stack values is that the engine needs to be very careful around things that could trigger GC: Thankfully Rust can make this a build-time check. The upside is that you see all the places where JS code can be called. It's terrifying: How does anything work!
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eliassjogreen @xn--sjgreen-b1a.se · 05/12/2024
Fourth day of Advent of Code 2024 completed a day late using the experimental @trynova.dev ECMAScript engine! My rather stupid search was quite slow so took about ~5 seconds find all of the matches. ⛄ github.com/eliassjogree... #AdventOfCode adventofcode.com/2024/day/4
github.com
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eliassjogreen @xn--sjgreen-b1a.se · 05/12/2024
Day five of Advent of Code 2024 using the @trynova.dev engine! Not entirely satisfied with my solution as it has a bunch of extraneous loops inside loops making it's Big-O at least O(N^3) and quite slow in the unoptimized engine. github.com/eliassjogree... #AdventOfCode adventofcode.com/2024/day/5
github.com
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Nova @trynova.dev · 04/12/2024
Hello world! We're a newish JavaScript engine written in Rust with an unconventional heap data structure and layout. We're not quite yet at the 50% conformance rate but we're getting there. Come visit us on our website to read more! 🎇 trynova.dev/blog/what-is...
trynova.dev
What is the Nova JavaScript engine? · Nova
A cliff-notes version of what is going on here.
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