Falco — a from-scratch browser engine in ~36k lines of Rust (v0.1.0 release)

Hi everyone! I just released v0.1.0 of Falco — a browser engine I've been building in Rust on nights and weekends. No WebKit, no Gecko, no Chromium — every module is written from scratch in ~36,000 lines. 🔗 GitHub : https://github.com/poxk/Falco 🔗 Releases (prebuilt binaries for Linux/macOS/Windows): https://github.com/poxk/Falco/releases/tag/v0.1.0 What's inside All modules are from scratch, with no dependency on existing browser engines: HTML5 ( html5/ + html.rs ) Tokenizer — all 80 states of WHATWG §13.2.5, including script-data escape/double-escape state machine, attribute parsing with duplicate detection, named + numeric character references with Windows-1252 quirks table Tree builder — all 22 insertion modes of WHATWG §13.2.6, stack of open elements with scope algorithms (default/button/table/select/list-item), active formatting elements list, adoption agency algorithm (8-iteration outer loop with full inner loop and bookmark tracking), foster parenting for table content XML parser — strict, with namespace bindings, CDATA, PIs Encoding detection — BOM, HTTP Content-Type charset, <meta charset> , <meta http-equiv> , heuristic UTF-8/UTF-16 detection, decoders for UTF-8 / UTF-16LE / UTF-16BE / Windows-1252 innerHTML/outerHTML serialization — void elements, <template> contents fragment, raw text elements, full attribute value escaping DOM ( dom2/ ) NodeRef = Rc<RefCell<Node>> with parent/firstChild/lastChild/previousSibling/nextSibling pointers per spec MutationObserver with observe()/disconnect()/take_records(), subtree ancestor matching, attributeFilter Shadow DOM — attachShadow() with open/closed modes, host validation, named + default slots, fallback content, slot distribution (flatten tree algorithm) Custom elements — customElements.define() with name validation, observedAttributes, lifecycle callbacks (connected/disconnected/adopted/attributeChanged/form-associated), pending upgrades, customized built-in elements (is="...") Accessibility tree — parallel tree