wilsonzlin/fastrender
View on GitHub ↗ ★ 1,579 HTML
Experimental new browser engine
27 mentions on Hacker News by 20 people: 1 story, 26 comments · first 2026-01-14 · latest 2026-09-28
20082026
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It's okay, soon everybody will switch to their own vibe-coded browsers, right? ( https://github.com/wilsonzlin/fastrender this looks so dead...)
comment by mstaoru · 2026-09-28 · in I switched to Brave -
…compiler [0], or Cursor's web browser? [1] [0] https://github.com/anthropics/claudes-c-compiler [1] https://github.com/wilsonzlin/fastrender
comment by rvz · 2026-07-10 · in Postgres rewritten in Rust, now passing 100% of the Postgres regression tests -
…matches the performance of larger ones. [1] https://github.com/anthropics/claudes-c-compiler [0] https://github.com/wilsonzlin/fastrender
comment by rvz · 2026-07-06 · in Anthropic's Method to Losing Goodwill in a Few Easy Steps -
…me to check up on these "AI wonder projects". Cursor's Web Browser? Last update 5 months ago: https://github.com/wilsonzlin/fastrender The Claude C compiler? 4 months since any changes: https://github.com/anthropics/claudes-c-compiler Zero…
comment by dminik · 2026-06-19 · in Fable Converted Pylint to Rust -
…not caring to and just shipping slop. This is the browser engine I was alluding to in the post: https://github.com/wilsonzlin/fastrender
comment by Ezhik · 2026-02-08 · in Slop Terrifies Me -
I think the one that made the biggest news cycle splash this last month was the FastRender experiment https://github.com/wilsonzlin/fastrender from Cursor, but I've also seen some others posted this last month. Simonw's blog seems to be…
comment by zamadatix · 2026-01-29 · in Show HN: I built a small browser engine from scratch in C++ -
…further than being able to render static HTML and CSS: - https://github.com/hiwavebrowser/hiwave - https://github.com/wilsonzlin/fastrender - https://github.com/embedding-shapes/one-agent-one-browser I've started tracking them on this tag…
comment by simonw · 2026-01-28 · in Ask HN: Why all the sudden people are writing browsers with AI? -
…stress testing the boundaries of coding agents and report back on what we learn. > Code here: https://github.com/wilsonzlin/fastrender
comment by simonw · 2026-01-27 · in When AI 'builds a browser,' check the repo before believing the hype -
> "It kind of works" https://github.com/wilsonzlin/fastrender/issues/98 A project that didn't compile at all counts as "kind of" working now? > I won't stand for misleading rhetoric like "it's just a Servo wrapper" when that isn't true.…
comment by sensanaty · 2026-01-26 · in When AI 'builds a browser,' check the repo before believing the hype -
It didn't have Servo as a dependency. Take a look in the Cargo.toml: https://github.com/wilsonzlin/fastrender/blob/19bf1036105d4e...
comment by simonw · 2026-01-26 · in When AI 'builds a browser,' check the repo before believing the hype -
…For a quick comparison: - https://github.com/DioxusLabs/blitz/blob/f828015b26d32b0bed3... - https://github.com/wilsonzlin/fastrender/blob/19bf1036105d4e... I believe the two are more or less doing the same, but one is 30x the size of the…
comment by polyglotfacto · 2026-01-24 · in Wilson Lin on FastRender: a browser built by parallel agents -
…commits? The blog was posted on Jan 14. There were commits on Jan 14 all the ways to Jan 18. https://github.com/wilsonzlin/fastrender/commits/main/
comment by signatoremo · 2026-01-24 · in Wilson Lin on FastRender: a browser built by parallel agents -
…as a valid POC. One example: your rendering loop does not follow the web specs and makes no sense. https://github.com/wilsonzlin/fastrender/blob/19bf1036105d4e... The above design document is simply nonsense; typical AI hallucinated BS.…
comment by polyglotfacto · 2026-01-21 · in Scaling long-running autonomous coding -
…"judge agent" is not the same thing as a human code owner as reviewer. Example on how not to do it: https://github.com/wilsonzlin/fastrender/blob/19bf1036105d4e... This rendering loop architecture makes zero sense, and it does not…
comment by polyglotfacto · 2026-01-21 · in Scaling long-running autonomous coding -
No, it has its own JS implementation: https://github.com/wilsonzlin/fastrender/tree/main/vendor/ec... See also: https://news.ycombinator.com/item?id=46650998
comment by simonw · 2026-01-20 · in Scaling long-running autonomous coding -
…handling CSS grids and flexbox - that's vendored with an explanation of some minor changes here: https://github.com/wilsonzlin/fastrender/blob/19bf1036105d4e... Taffy a solid library choice, but it's probably the most robust ammunition for…
comment by simonw · 2026-01-20 · in Scaling long-running autonomous coding -
Well, could it be because it was instructed to kinda "study" Servo? https://github.com/wilsonzlin/fastrender/blob/3e5bc78b075645...
comment by Snuggly73 · 2026-01-17 · in Cursor's latest “browser experiment” implied success without evidence -
…quirks mode of the document. #[inline] pub fn quirks_mode(&self) -> QuirksMode { self.quirks_mode } https://github.com/wilsonzlin/fastrender/blob/3e5bc78b075645... And then this: /// The quirks mode of the document. pub fn…
comment by pera · 2026-01-17 · in Cursor's latest “browser experiment” implied success without evidence -
…run this particular project. After a human stepped in to fix it, yes. You can see it yourself here: https://github.com/wilsonzlin/fastrender/issues/98 > Nevertheless, IMHO what’s interesting about this is not the browser itself but rather…
comment by embedding-shape · 2026-01-17 · in Cursor's latest “browser experiment” implied success without evidence -
…are also questions about the attribution of these commits [2]. Can you share some information? [0] https://github.com/wilsonzlin/fastrender [1] https://github.com/wilsonzlin/fastrender/issues/98 [2] https://gist.github.com/embedding-shapes/…
comment by RandyOrion · 2026-01-17 · in Cursor's latest “browser experiment” implied success without evidence -
…a ligature necessitating re-shaping, also add some right-padding in there to spice things up). [1] https://github.com/wilsonzlin/fastrender/blob/main/src/layou... [2] https://github.com/wilsonzlin/fastrender/blob/main/src/layou... [3]…
comment by afishhh · 2026-01-17 · in Cursor's latest “browser experiment” implied success without evidence -
Looks like Cursor Agent was at least somewhat involved: https://github.com/wilsonzlin/fastrender/commit/4cc2cb3cf0bd...
comment by neuronexmachina · 2026-01-16 · in Scaling long-running autonomous coding -
…to code written by humans. And after all that it doesn't even compile! It's just plain slop. [1] - https://github.com/wilsonzlin/fastrender/blob/main/Cargo.tom... [2] - https://github.com/servo/servo [3] -…
comment by nindalf · 2026-01-16 · in Cursor's latest “browser experiment” implied success without evidence -
Looks like it doesn't compile for at least one other guy (I myself haven't tried): https://github.com/wilsonzlin/fastrender/issues/98 Yeah, answers need to be given.
comment by underdeserver · 2026-01-15 · in Scaling long-running autonomous coding -
this is certainly an interesting way to pull out an attribute from a tag: https://github.com/wilsonzlin/fastrender/blob/main/crates/fa...
comment by blibble · 2026-01-14 · in Scaling long-running autonomous coding -
This looks like extremely brittle code to my eyes. Look at https://github.com/wilsonzlin/fastrender/blob/main/crates/fa... What is `FrameState::render_placeholder`? ``` pub fn render_placeholder(&self, frame_id: FrameId) ->…
comment by jphelan · 2026-01-14 · in Scaling long-running autonomous coding