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<!doctype html>
<html lang="en" data-theme="dark">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>SxfeScript</title>
<meta name="description" content="SxfeScript: explicit ownership and real runtime safety on top of ordinary JavaScript, running on ArcSX, a QuickJS-based runtime built to run the same on a phone as it does on a server.">
<link rel="icon" type="image/png" href="logo.png">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&family=Newsreader:opsz,wght@6..72,400;6..72,500;6..72,600&family=Public+Sans:wght@400;500;600;700&display=swap" rel="stylesheet">
<link rel="stylesheet" href="site.css">
<style>
/* Tokens, base typography, nav, buttons, the copy button and the footer
live in site.css, shared with every generated documentation page. What
is left here is the landing page's own layout. */
/* ---- hero ---- */
header.hero { padding: 76px 0 40px; }
.kicker {
font-family: "JetBrains Mono", monospace; font-size: 11.5px; letter-spacing: .16em;
text-transform: uppercase; color: var(--accent); margin: 0 0 18px;
}
h1.title {
font-size: clamp(40px, 5vw, 64px); line-height: 1.02; font-weight: 600; margin: 0 0 22px;
letter-spacing: -.02em;
}
p.lede { font-size: clamp(17px, 2vw, 19.5px); color: var(--ink-mid); max-width: 58ch; margin: 0 0 30px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 44px; }
.install-tabs { display: flex; gap: 2px; margin-bottom: 8px; }
.install-tab {
font-family: "JetBrains Mono", monospace; font-size: 12.5px; font-weight: 600;
padding: 7px 14px; border: 1px solid var(--rule); background: var(--card);
color: var(--ink-soft); cursor: pointer;
}
.install-tab:first-child { border-radius: 7px 0 0 7px; }
.install-tab:last-child { border-radius: 0 7px 7px 0; border-left: none; }
.install-tab.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
pre.install-cmd {
margin: 0 0 10px; padding: 14px 52px 14px 18px; font-size: 14px;
display: inline-flex; align-items: center; gap: 20px; position: relative;
/* The command is one long unbreakable line; without this the inline-flex
box sizes to it and drags the whole column wider than a phone. */
max-width: 100%;
}
pre.install-cmd[hidden] { display: none; }
pre.install-cmd code { color: var(--safe); }
/* One line of text, so the button centers rather than sitting at the top
the way it does on a multi-line block. */
pre.install-cmd .copy-btn { top: 50%; transform: translateY(-50%); }
p.install-note { font-size: 13px; color: var(--ink-soft); margin: 0 0 44px; }
/* minmax(0, ...) rather than a bare fraction, and min-width on the items:
a grid track's automatic minimum is its content's min-content width, and
a <pre> of code has no wrap opportunities, so an unqualified 1fr grew the
column past the viewport on a phone and the page was clipped rather than
laid out. The same reason .doc carries min-width: 0. */
.hero-grid {
display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
gap: 48px; align-items: start;
}
.hero-grid > * { min-width: 0; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }
.compare-hero { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.compare-hero > * { min-width: 0; }
.compare-hero pre { margin: 0; font-size: 12.6px; }
.compare-hero .highlight { margin: 0; }
.compare-label {
font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: .08em;
text-transform: uppercase; color: var(--ink-mid); margin: 0 0 8px;
}
/* ---- runnable examples ---- */
.ex-tabs { display: flex; gap: 2px; margin-bottom: 14px; flex-wrap: wrap; }
.ex-tab {
font-family: "JetBrains Mono", monospace; font-size: 12.5px; font-weight: 600;
padding: 7px 14px; border: 1px solid var(--rule); border-radius: 7px;
background: var(--card); color: var(--ink-soft); cursor: pointer;
}
.ex-tab:hover { color: var(--ink); }
.ex-tab.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.ex-panel[hidden] { display: none; }
.ex-panel .ex-file {
font-family: "JetBrains Mono", monospace; font-size: 11.5px; letter-spacing: .06em;
color: var(--ink-soft); margin: 0 0 8px;
}
.ex-panel pre { position: relative; margin: 0; font-size: 13px; }
/* The code block is inlined from the example file at build time and
arrives wrapped in .highlight, the way the doc pages get it. */
.ex-panel .highlight { margin: 0; }
.ex-run {
font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: .1em;
text-transform: uppercase; color: var(--ink-soft); margin: 18px 0 8px;
}
pre.ex-out { background: var(--card); box-shadow: none; }
pre.ex-out code { color: var(--ink-mid); }
/* ---- sections ---- */
section { padding: 56px 0; border-top: 1px solid var(--rule-soft); }
section:first-of-type { border-top: none; }
section.band {
border-top: 1px solid var(--rule-soft); border-bottom: 1px solid var(--rule-soft);
background: var(--card-2);
margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw);
padding-left: calc(50vw - 50%); padding-right: calc(50vw - 50%);
}
h2.h {
font-size: clamp(26px, 3.6vw, 32px); font-weight: 600; margin: 0 0 8px;
}
p.lede-s { color: var(--ink-mid); max-width: 62ch; margin: 0 0 32px; }
.grid-2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.grid-2 > * { min-width: 0; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: minmax(0, 1fr); } }
.card {
background: var(--card); border: 1px solid var(--rule); border-radius: 10px;
padding: 20px; transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover {
transform: translateY(-2px); box-shadow: var(--shadow);
border-color: color-mix(in srgb, var(--accent) 32%, var(--rule));
}
.card h3 {
margin: 0 0 8px; font-size: 16.5px; font-weight: 600; font-family: "Public Sans", sans-serif;
display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
}
.card p { margin: 0; font-size: 14.5px; color: var(--ink-mid); }
.badge {
font-family: "JetBrains Mono", monospace; font-size: 11px; font-weight: 600; letter-spacing: .02em;
color: var(--accent); background: var(--accent-wash); border-radius: 5px; padding: 2px 7px;
}
/* comparison table */
.scroll { overflow-x: auto; border: 1px solid var(--rule); border-radius: 8px; background: var(--card); }
table { border-collapse: collapse; width: 100%; min-width: 560px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; font-size: 14.5px; }
thead th {
font-family: "JetBrains Mono", monospace; font-size: 10.5px; letter-spacing: .09em; text-transform: uppercase;
color: var(--ink-mid); font-weight: 600; background: var(--card-2); border-bottom: 2px solid var(--rule);
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--card-2); }
td.yes { color: var(--safe); font-weight: 600; }
td.yes.quiet { color: var(--ink-mid); font-weight: 400; }
td.no { color: var(--ink-mid); }
td.yes::before { content: "\2713 "; }
td.no::before { content: "- "; }
td code { background: none; border: 0; padding: 0; }
td.num, th.num {
text-align: right; font-family: "JetBrains Mono", monospace; font-variant-numeric: tabular-nums;
font-size: 14px; white-space: nowrap;
}
ul.check, ul.plain { padding-left: 0; list-style: none; margin: 0; }
ul.check li, ul.plain li { padding: 5px 0 5px 26px; position: relative; font-size: 15px; color: var(--ink-mid); }
ul.check li::before { content: "\2713"; position: absolute; left: 0; color: var(--safe); font-weight: 700; }
ul.plain li::before { content: "\00b7"; position: absolute; left: 4px; color: var(--ink-soft); font-weight: 700; }
</style>
</head>
<body>
<nav class="top">
<div class="row">
<a class="wordmark" href="#top"><img src="logo.png" alt="" width="30" height="30"><span>Sxfe<span class="wm-accent">Script</span></span></a>
<ul>
<li><a class="navlink" href="docs/">Docs</a></li>
<li><a class="navlink" href="#code">Code</a></li>
<li><a class="navlink" href="#vs-typescript">vs TypeScript</a></li>
<li><a class="navlink" href="#arcsx">ArcSX runtime</a></li>
<li><a class="navlink" href="#contributing">Contributing</a></li>
</ul>
<a class="gh-link" href="https://github.com/SxfeScript/sxfescript">GitHub</a>
</div>
</nav>
<div class="wrap">
<header class="hero" id="top">
<div class="hero-grid">
<div>
<p class="kicker">SxfeScript · runs on ArcSX</p>
<h1 class="title">Ownership and borrows, on top of ordinary JavaScript.</h1>
<p class="lede">
SxfeScript is JavaScript with an explicit <span class="kw-safe">safe</span> and
<span class="kw-unsafe">unsafe</span> boundary, affine values, and lexical borrows,
parsed natively, with no build step, and run by <strong>ArcSX</strong>, a
QuickJS-based runtime built to run the same on a phone as it does on a server.
</p>
<div class="cta-row">
<a class="btn btn-primary" href="docs/">Read the docs</a>
<a class="btn btn-ghost" href="https://github.com/SxfeScript/sxfescript">View the source</a>
<a class="btn btn-ghost" href="docs/quickstart/">Quick start</a>
<a class="btn btn-ghost" href="#contributing">Contribute</a>
</div>
<div class="install-tabs" role="tablist" aria-label="Install command">
<button type="button" class="install-tab active" role="tab" aria-selected="true" data-os="unix">macOS / Linux</button>
<button type="button" class="install-tab" role="tab" aria-selected="false" data-os="windows">Windows</button>
</div>
<pre class="install-cmd" data-os="unix"><code>curl -fsSL https://sxfescript.github.io/latest/install.sh | bash</code><button type="button" class="copy-btn" aria-label="Copy install command">Copy</button></pre>
<pre class="install-cmd" data-os="windows" hidden><code>irm https://sxfescript.github.io/latest/install.ps1 | iex</code><button type="button" class="copy-btn" aria-label="Copy install command">Copy</button></pre>
<p class="install-note">arm64 or x64, either way. Every release also has a
plain <code>.zip</code>/<code>.tar.gz</code> on
<a href="https://github.com/SxfeScript/sxfescript/releases">Releases</a>.</p>
</div>
<div class="compare-hero">
<div>
<p class="compare-label">TypeScript: erased at build time</p>
<div class="highlight highlight-source-ts"><pre><span class="pl-k">function</span> <span class="pl-en">withdraw</span><span class="pl-kos">(</span><span class="pl-s1">acct</span>: <span class="pl-smi">Account</span><span class="pl-kos">,</span> <span class="pl-s1">n</span>: <span class="pl-smi">number</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
<span class="pl-c">// nothing here is true at runtime.</span>
<span class="pl-c">// acct could be null. n could be NaN.</span>
<span class="pl-c">// tsc already stopped watching.</span>
<span class="pl-s1">acct</span><span class="pl-kos">.</span><span class="pl-c1">balance</span> <span class="pl-c1">-=</span> <span class="pl-s1">n</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
</pre></div>
</div>
<div>
<p class="compare-label">SxfeScript: checked, then run</p>
<div class="highlight highlight-source-ts"><pre><span class="pl-k">function</span> <span class="pl-en">withdraw</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-k">mut</span> <span class="pl-s1">acct</span>: <span class="pl-smi">Account</span><span class="pl-kos">,</span> <span class="pl-s1">n</span>: <span class="pl-smi">i32</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
<span class="pl-c">// acct is a live, exclusive borrow --</span>
<span class="pl-c">// checked at parse time, not hoped for.</span>
<span class="pl-s1">acct</span><span class="pl-kos">.</span><span class="pl-c1">balance</span> <span class="pl-c1">-=</span> <span class="pl-s1">n</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
</pre></div>
</div>
</div>
</div>
</header>
<section id="code">
<h2 class="h">What it looks like</h2>
<p class="lede-s">
Each of these is a real <code>.sx</code> file in
<a href="https://github.com/SxfeScript/sxfescript/tree/main/examples"><code>examples/</code></a>, and the
output under it is what that file actually prints. Nothing here needs a
config file, a bundler, or a step before <code>sxn</code> runs it.
</p>
<div class="ex-tabs" role="tablist" aria-label="Example">
<button type="button" class="ex-tab active" role="tab" aria-selected="true" data-ex="server">HTTP server</button>
<button type="button" class="ex-tab" role="tab" aria-selected="false" data-ex="sx">Ownership</button>
<button type="button" class="ex-tab" role="tab" aria-selected="false" data-ex="fetch">fetch & streams</button>
<button type="button" class="ex-tab" role="tab" aria-selected="false" data-ex="ffi">Calling C</button>
</div>
<div class="ex-panel" data-ex="server">
<p class="ex-file">examples/server.sx</p>
<div class="highlight highlight-source-ts"><pre><span class="pl-k">interface</span> <span class="pl-smi">Note</span> <span class="pl-kos">{</span>
<span class="pl-c1">id</span>: <span class="pl-smi">number</span><span class="pl-kos">;</span>
<span class="pl-c1">text</span>: <span class="pl-smi">string</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-k">const</span> <span class="pl-s1">notes</span>: <span class="pl-smi">Map</span><span class="pl-c1"><</span><span class="pl-smi">number</span><span class="pl-kos">,</span> <span class="pl-smi">string</span><span class="pl-c1">></span> <span class="pl-c1">=</span> <span class="pl-k">new</span> <span class="pl-v">Map</span><span class="pl-kos">(</span><span class="pl-kos">[</span><span class="pl-kos">[</span><span class="pl-c1">1</span><span class="pl-kos">,</span> <span class="pl-s">"the first note"</span><span class="pl-kos">]</span><span class="pl-kos">]</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">let</span> <span class="pl-k">mut</span> <span class="pl-s1">nextId</span>: <span class="pl-smi">number</span> <span class="pl-c1">=</span> <span class="pl-c1">2</span><span class="pl-kos">;</span>
<span class="pl-k">const</span> <span class="pl-s1">server</span> <span class="pl-c1">=</span> <span class="pl-v">Sxn</span><span class="pl-kos">.</span><span class="pl-en">serve</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-c1">port</span>: <span class="pl-c1">0</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-k">async</span> <span class="pl-kos">(</span><span class="pl-s1">req</span>: <span class="pl-smi">Request</span><span class="pl-kos">)</span>: <span class="pl-smi">Promise</span><span class="pl-c1"><</span><span class="pl-smi">Response</span><span class="pl-c1">></span> <span class="pl-c1">=></span> <span class="pl-kos">{</span>
<span class="pl-k">const</span> <span class="pl-s1">url</span> <span class="pl-c1">=</span> <span class="pl-k">new</span> <span class="pl-c1">URL</span><span class="pl-kos">(</span><span class="pl-s1">req</span><span class="pl-kos">.</span><span class="pl-c1">url</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-s1">url</span><span class="pl-kos">.</span><span class="pl-c1">pathname</span> <span class="pl-c1">===</span> <span class="pl-s">"/"</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
<span class="pl-k">return</span> <span class="pl-k">new</span> <span class="pl-v">Response</span><span class="pl-kos">(</span><span class="pl-s">"try /notes"</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-s1">url</span><span class="pl-kos">.</span><span class="pl-c1">pathname</span> <span class="pl-c1">===</span> <span class="pl-s">"/notes"</span> <span class="pl-c1">&&</span> <span class="pl-s1">req</span><span class="pl-kos">.</span><span class="pl-c1">method</span> <span class="pl-c1">===</span> <span class="pl-s">"GET"</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
<span class="pl-k">const</span> <span class="pl-s1">all</span>: <span class="pl-smi">Note</span><span class="pl-kos">[</span><span class="pl-kos">]</span> <span class="pl-c1">=</span> <span class="pl-kos">[</span>...<span class="pl-s1">notes</span><span class="pl-kos">]</span><span class="pl-kos">.</span><span class="pl-en">map</span><span class="pl-kos">(</span><span class="pl-kos">(</span><span class="pl-kos">[</span><span class="pl-s1">id</span><span class="pl-kos">,</span> <span class="pl-s1">text</span><span class="pl-kos">]</span><span class="pl-kos">)</span> <span class="pl-c1">=></span> <span class="pl-kos">(</span><span class="pl-kos">{</span> id<span class="pl-kos">,</span> text <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">return</span> <span class="pl-v">Response</span><span class="pl-kos">.</span><span class="pl-en">json</span><span class="pl-kos">(</span><span class="pl-s1">all</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-s1">url</span><span class="pl-kos">.</span><span class="pl-c1">pathname</span> <span class="pl-c1">===</span> <span class="pl-s">"/notes"</span> <span class="pl-c1">&&</span> <span class="pl-s1">req</span><span class="pl-kos">.</span><span class="pl-c1">method</span> <span class="pl-c1">===</span> <span class="pl-s">"POST"</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
<span class="pl-k">const</span> <span class="pl-kos">{</span> text <span class="pl-kos">}</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-s1">req</span><span class="pl-kos">.</span><span class="pl-en">json</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">const</span> <span class="pl-s1">note</span>: <span class="pl-smi">Note</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-c1">id</span>: <span class="pl-s1">nextId</span><span class="pl-c1">++</span><span class="pl-kos">,</span> text <span class="pl-kos">}</span><span class="pl-kos">;</span>
<span class="pl-s1">notes</span><span class="pl-kos">.</span><span class="pl-en">set</span><span class="pl-kos">(</span><span class="pl-s1">note</span><span class="pl-kos">.</span><span class="pl-c1">id</span><span class="pl-kos">,</span> <span class="pl-s1">note</span><span class="pl-kos">.</span><span class="pl-c1">text</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">return</span> <span class="pl-v">Response</span><span class="pl-kos">.</span><span class="pl-en">json</span><span class="pl-kos">(</span><span class="pl-s1">note</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">status</span>: <span class="pl-c1">201</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-k">return</span> <span class="pl-k">new</span> <span class="pl-v">Response</span><span class="pl-kos">(</span><span class="pl-s">"not found"</span><span class="pl-kos">,</span> <span class="pl-kos">{</span> <span class="pl-c1">status</span>: <span class="pl-c1">404</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">`listening on <span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">server</span><span class="pl-kos">.</span><span class="pl-c1">url</span><span class="pl-kos">}</span></span>`</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-c">// Call the server we just started, from the same process.</span>
<span class="pl-k">const</span> <span class="pl-s1">created</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">fetch</span><span class="pl-kos">(</span><span class="pl-s">`<span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">server</span><span class="pl-kos">.</span><span class="pl-c1">url</span><span class="pl-kos">}</span></span>/notes`</span><span class="pl-kos">,</span> <span class="pl-kos">{</span>
<span class="pl-c1">method</span>: <span class="pl-s">"POST"</span><span class="pl-kos">,</span>
<span class="pl-c1">headers</span>: <span class="pl-kos">{</span> <span class="pl-s">"content-type"</span>: <span class="pl-s">"application/json"</span> <span class="pl-kos">}</span><span class="pl-kos">,</span>
<span class="pl-c1">body</span>: <span class="pl-c1">JSON</span><span class="pl-kos">.</span><span class="pl-en">stringify</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-c1">text</span>: <span class="pl-s">"written by the example"</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">,</span>
<span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">"POST /notes ->"</span><span class="pl-kos">,</span> <span class="pl-s1">created</span><span class="pl-kos">.</span><span class="pl-c1">status</span><span class="pl-kos">,</span> <span class="pl-k">await</span> <span class="pl-s1">created</span><span class="pl-kos">.</span><span class="pl-en">text</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">const</span> <span class="pl-s1">all</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">fetch</span><span class="pl-kos">(</span><span class="pl-s">`<span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">server</span><span class="pl-kos">.</span><span class="pl-c1">url</span><span class="pl-kos">}</span></span>/notes`</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">"GET /notes ->"</span><span class="pl-kos">,</span> <span class="pl-s1">all</span><span class="pl-kos">.</span><span class="pl-c1">status</span><span class="pl-kos">,</span> <span class="pl-k">await</span> <span class="pl-s1">all</span><span class="pl-kos">.</span><span class="pl-en">text</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-c">// Without stop() the listening socket keeps the process alive, which is what</span>
<span class="pl-c">// you want for a real server and not for a script that has finished.</span>
<span class="pl-s1">server</span><span class="pl-kos">.</span><span class="pl-en">stop</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div>
<p class="ex-run">sxn examples/server.sx</p>
<pre class="ex-out"><code>listening on http://127.0.0.1:56690
POST /notes -> 201 {"id":2,"text":"written by the example"}
GET /notes -> 200 [{"id":1,"text":"the first note"},{"id":2,"text":"written by the example"}]</code></pre>
</div>
<div class="ex-panel" data-ex="sx" hidden>
<p class="ex-file">examples/hello.sx</p>
<div class="highlight highlight-source-ts"><pre><span class="pl-k">interface</span> <span class="pl-smi">Repo</span> <span class="pl-kos">{</span>
<span class="pl-c1">name</span>: <span class="pl-smi">string</span><span class="pl-kos">;</span>
<span class="pl-c1">stars</span>: <span class="pl-smi">i32</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-k">const</span> <span class="pl-en">describe</span> <span class="pl-c1">=</span> <span class="pl-kos">(</span><span class="pl-s1">repo</span>: <span class="pl-smi">Repo</span><span class="pl-kos">)</span>: <span class="pl-smi">string</span> <span class="pl-c1">=></span>
<span class="pl-s">`<span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">repo</span><span class="pl-kos">.</span><span class="pl-c1">name</span><span class="pl-kos">}</span></span> has <span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">repo</span><span class="pl-kos">.</span><span class="pl-c1">stars</span><span class="pl-kos">}</span></span> star<span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">repo</span><span class="pl-kos">.</span><span class="pl-c1">stars</span> <span class="pl-c1">===</span> <span class="pl-c1">1</span> ? <span class="pl-s">""</span> : <span class="pl-s">"s"</span><span class="pl-kos">}</span></span>`</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-en">describe</span><span class="pl-kos">(</span><span class="pl-kos">{</span> <span class="pl-c1">name</span>: <span class="pl-s">"sxfescript"</span><span class="pl-kos">,</span> <span class="pl-c1">stars</span>: <span class="pl-c1">1</span> <span class="pl-kos">}</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-c">// `let mut` is a mutable owner, `let` an immutable one. `&mut` borrows a</span>
<span class="pl-c">// value exclusively, so a function can change what it was handed without</span>
<span class="pl-c">// taking ownership of it.</span>
<span class="pl-k">interface</span> <span class="pl-smi">Counter</span> <span class="pl-kos">{</span>
<span class="pl-c1">hits</span>: <span class="pl-smi">i32</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-k">function</span> <span class="pl-en">bump</span><span class="pl-kos">(</span><span class="pl-s1">c</span>: <span class="pl-c1">&</span><span class="pl-k">mut</span> <span class="pl-smi">Counter</span><span class="pl-kos">)</span>: <span class="pl-smi"><span class="pl-k">void</span></span> <span class="pl-kos">{</span>
<span class="pl-s1">c</span><span class="pl-kos">.</span><span class="pl-c1">hits</span> <span class="pl-c1">+=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-k">let</span> <span class="pl-k">mut</span> <span class="pl-s1">counter</span>: <span class="pl-smi">Counter</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span> <span class="pl-c1">hits</span>: <span class="pl-c1">0</span> <span class="pl-kos">}</span><span class="pl-kos">;</span>
<span class="pl-s1">bump</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-k">mut</span> <span class="pl-s1">counter</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-s1">bump</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-k">mut</span> <span class="pl-s1">counter</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">`counter: <span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">counter</span><span class="pl-kos">.</span><span class="pl-c1">hits</span><span class="pl-kos">}</span></span>`</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div>
<p class="ex-run">sxn examples/hello.sx</p>
<pre class="ex-out"><code>counter: 2</code></pre>
</div>
<div class="ex-panel" data-ex="fetch" hidden>
<p class="ex-file">examples/fetch.sx</p>
<div class="highlight highlight-source-ts"><pre><span class="pl-k">const</span> <span class="pl-s1">res</span>: <span class="pl-smi">Response</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">fetch</span><span class="pl-kos">(</span><span class="pl-s">"https://example.com/"</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s1">res</span><span class="pl-kos">.</span><span class="pl-c1">status</span><span class="pl-kos">,</span> <span class="pl-s1">res</span><span class="pl-kos">.</span><span class="pl-c1">headers</span><span class="pl-kos">.</span><span class="pl-en">get</span><span class="pl-kos">(</span><span class="pl-s">"content-type"</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-c">// Read it as text, in whole.</span>
<span class="pl-k">const</span> <span class="pl-s1">html</span>: <span class="pl-smi">string</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-s1">res</span><span class="pl-kos">.</span><span class="pl-en">text</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">`<span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">html</span><span class="pl-kos">.</span><span class="pl-c1">length</span><span class="pl-kos">}</span></span> bytes`</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-c">// Or a chunk at a time, decoding as the bytes arrive.</span>
<span class="pl-k">const</span> <span class="pl-s1">streamed</span>: <span class="pl-smi">Response</span> <span class="pl-c1">=</span> <span class="pl-k">await</span> <span class="pl-en">fetch</span><span class="pl-kos">(</span><span class="pl-s">"https://example.com/"</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">let</span> <span class="pl-k">mut</span> <span class="pl-s1">chunks</span>: <span class="pl-smi">number</span> <span class="pl-c1">=</span> <span class="pl-c1">0</span><span class="pl-kos">;</span>
<span class="pl-k">let</span> <span class="pl-k">mut</span> <span class="pl-s1">characters</span>: <span class="pl-smi">number</span> <span class="pl-c1">=</span> <span class="pl-c1">0</span><span class="pl-kos">;</span>
<span class="pl-k">for</span> <span class="pl-k">await</span> <span class="pl-kos">(</span><span class="pl-k">const</span> <span class="pl-s1">chunk</span> <span class="pl-k">of</span> <span class="pl-s1">streamed</span><span class="pl-kos">.</span><span class="pl-c1">body</span><span class="pl-kos">.</span><span class="pl-en">pipeThrough</span><span class="pl-kos">(</span><span class="pl-k">new</span> <span class="pl-v">TextDecoderStream</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">)</span> <span class="pl-kos">{</span>
<span class="pl-s1">chunks</span> <span class="pl-c1">+=</span> <span class="pl-c1">1</span><span class="pl-kos">;</span>
<span class="pl-s1">characters</span> <span class="pl-c1">+=</span> <span class="pl-s1">chunk</span><span class="pl-kos">.</span><span class="pl-c1">length</span><span class="pl-kos">;</span>
<span class="pl-kos">}</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">`<span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">chunks</span><span class="pl-kos">}</span></span> chunk(s), <span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">characters</span><span class="pl-kos">}</span></span> characters`</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div>
<p class="ex-run">sxn examples/fetch.sx</p>
<pre class="ex-out"><code>200 text/html
559 bytes
1 chunk(s), 559 characters</code></pre>
</div>
<div class="ex-panel" data-ex="ffi" hidden>
<p class="ex-file">examples/ffi.sx</p>
<div class="highlight highlight-source-ts"><pre><span class="pl-k">type</span> <span class="pl-smi">LibraryName</span> <span class="pl-c1">=</span> <span class="pl-smi">string</span><span class="pl-kos">;</span>
<span class="pl-k">const</span> <span class="pl-s1">libm</span>: <span class="pl-smi">LibraryName</span> <span class="pl-c1">|</span> <span class="pl-c1">undefined</span> <span class="pl-c1">=</span> <span class="pl-kos">{</span>
<span class="pl-c1">darwin</span>: <span class="pl-s">"libSystem.B.dylib"</span><span class="pl-kos">,</span>
<span class="pl-c1">linux</span>: <span class="pl-s">"libm.so.6"</span><span class="pl-kos">,</span>
<span class="pl-c1">win32</span>: <span class="pl-s">"msvcrt.dll"</span><span class="pl-kos">,</span>
<span class="pl-kos">}</span><span class="pl-kos">[</span><span class="pl-s1">process</span><span class="pl-kos">.</span><span class="pl-c1">platform</span><span class="pl-kos">]</span><span class="pl-kos">;</span>
<span class="pl-k">if</span> <span class="pl-kos">(</span><span class="pl-c1">!</span><span class="pl-s1">libm</span><span class="pl-kos">)</span> <span class="pl-k">throw</span> <span class="pl-k">new</span> <span class="pl-v">Error</span><span class="pl-kos">(</span><span class="pl-s">`no libm name known for <span class="pl-s1"><span class="pl-kos">${</span><span class="pl-s1">process</span><span class="pl-kos">.</span><span class="pl-c1">platform</span><span class="pl-kos">}</span></span>`</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">const</span> <span class="pl-s1">pow</span> <span class="pl-c1">=</span> <span class="pl-v">Sxn</span><span class="pl-kos">.</span><span class="pl-en">ffi</span><span class="pl-kos">(</span><span class="pl-s1">libm</span><span class="pl-kos">,</span> <span class="pl-s">"pow"</span><span class="pl-kos">,</span> <span class="pl-kos">[</span><span class="pl-s">"f64"</span><span class="pl-kos">,</span> <span class="pl-s">"f64"</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-s">"f64"</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-k">const</span> <span class="pl-s1">sqrt</span> <span class="pl-c1">=</span> <span class="pl-v">Sxn</span><span class="pl-kos">.</span><span class="pl-en">ffi</span><span class="pl-kos">(</span><span class="pl-s1">libm</span><span class="pl-kos">,</span> <span class="pl-s">"sqrt"</span><span class="pl-kos">,</span> <span class="pl-kos">[</span><span class="pl-s">"f64"</span><span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-s">"f64"</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">"pow(2, 10) ="</span><span class="pl-kos">,</span> <span class="pl-en">pow</span><span class="pl-kos">(</span><span class="pl-c1">2</span><span class="pl-kos">,</span> <span class="pl-c1">10</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span>
<span class="pl-smi">console</span><span class="pl-kos">.</span><span class="pl-en">log</span><span class="pl-kos">(</span><span class="pl-s">"sqrt(144) ="</span><span class="pl-kos">,</span> <span class="pl-en">sqrt</span><span class="pl-kos">(</span><span class="pl-c1">144</span><span class="pl-kos">)</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div>
<p class="ex-run">sxn examples/ffi.sx</p>
<pre class="ex-out"><code>pow(2, 10) = 1024
sqrt(144) = 12</code></pre>
</div>
<p style="margin-top:26px;">
More of them, each with its output, on the
<a href="docs/examples/">examples page</a>. The
<a href="docs/quickstart/">quick start</a> goes from an empty directory to
a running server.
</p>
</section>
<section id="what-is">
<h2 class="h">What SxfeScript actually adds</h2>
<p class="lede-s">
Every ordinary JavaScript value keeps its ordinary semantics. SxfeScript layers four
things on top, and all four are optional. A file that uses none of them is a
normal <code>.js</code> file that happens to have a <code>.sx</code> extension.
</p>
<div class="grid-2">
<div class="card">
<h3>Ownership & borrows</h3>
<p><code>let mut</code> creates a mutable owner, <code>let</code> an immutable one.
<code>&value</code> borrows it shared; <code>&mut value</code> borrows it
exclusively and requires a mutable owner. A borrow can't be returned, stored somewhere
longer-lived, or carried across an <code>await</code>. Each rule is checked before the
code runs, not documented and hoped for.</p>
</div>
<div class="card">
<h3>The <span class="kw-safe">safe</span> / <span class="kw-unsafe">unsafe</span> boundary</h3>
<p><code>safe let</code> marks a binding as type-stable: the object shape it points to
rejects property addition, deletion, and incompatible writes. Reaching outside that
(a raw pointer, an FFI call) means writing <code>unsafe</code> and meaning it,
the same contract Rust makes explicit.</p>
</div>
<div class="card">
<h3>Erasable TypeScript annotations</h3>
<p>Type aliases, interfaces, <code>declare</code>, generics on functions, optional
parameters, <code>as</code>/<code>satisfies</code>, union types: all of it parsed and
stripped natively, no <code>tsc</code>, no bundler, no separate compile step.</p>
</div>
<div class="card">
<h3>Fixed-layout structs</h3>
<p>A primitive-only interface (<code>i32</code>, <code>f32</code>, <code>f64</code>,
<code>bool</code>) defines an affine struct with declared field order and natural
alignment: the same layout on every supported target, for code that has to cross
into native memory.</p>
</div>
</div>
</section>
<section id="vs-typescript">
<h2 class="h">SxfeScript vs. TypeScript</h2>
<p class="lede-s">
TypeScript's types exist for the compiler and your editor, and stop existing the moment
<code>tsc</code> finishes. A null you were promised isn't there can still be null.
SxfeScript's <span class="kw-safe">safe</span> qualifier is the same idea pushed one layer
deeper: the guarantee is checked before the code runs, and object shapes that would
violate it are rejected rather than merely un-typed.
</p>
<div class="scroll">
<table>
<thead><tr><th>Question</th><th>TypeScript</th><th>SxfeScript</th></tr></thead>
<tbody>
<tr>
<td>What happens to the types at runtime?</td>
<td class="no">Erased entirely: a type is a compile-time fiction</td>
<td class="yes"><code>safe</code> bindings keep a runtime descriptor; incompatible writes are rejected, not silently accepted</td>
</tr>
<tr>
<td>Do you need a build step to run a file?</td>
<td class="no"><code>tsc</code>, or a bundler standing in for it</td>
<td class="yes">No. <code>sxn app.ts</code> strips and runs it directly</td>
</tr>
<tr>
<td>Aliasing and mutation</td>
<td class="no">Not modeled at all</td>
<td class="yes">Explicit: an owner, a shared borrow, or an exclusive borrow, one at a time, checked</td>
</tr>
<tr>
<td>Calling into native code</td>
<td class="no">Whatever your runtime's FFI story is. TypeScript has no opinion</td>
<td class="yes">An explicit <code>unsafe extern</code> boundary; everywhere else stays safe by default</td>
</tr>
<tr>
<td>Can a "safe" line still corrupt memory?</td>
<td class="no">Not applicable. There's no runtime safety claim to keep</td>
<td class="yes quiet">Not while it stays <code>safe</code>; <code>unsafe</code> is the one place that trust is spent explicitly</td>
</tr>
</tbody>
</table>
</div>
<p style="margin-top:18px; color:var(--ink-mid); font-size:14.5px; max-width:66ch;">
TypeScript documents intent for humans and tooling. SxfeScript's safe subset makes a
narrower, different claim: a runtime contract, smaller in scope than TypeScript's type
system today (see the honest gap list in
<a href="docs/implementation/">spec/IMPLEMENTATION.md</a>), and
still growing, but real where it applies rather than a promise the runtime never checks.
</p>
</section>
<section id="arcsx" class="band">
<h2 class="h">ArcSX: the runtime underneath</h2>
<p class="lede-s">
ArcSX is a QuickJS-ng fork, built as <code>sxn</code>. It runs <code>.sx</code>,
<code>.ts</code>, and ordinary <code>.js</code>/<code>.mjs</code>/<code>.cjs</code>
directly, with two compatibility layers built on top of the same engine core: one for the
browser-shaped WinterCG web APIs, one for Node.
</p>
<p style="color:var(--ink-mid); font-size:14.5px; max-width:68ch; margin-bottom:12px;">
What that's actually good for, measured against Node 25 and Bun 1.2 on the same Apple
M4 (full methodology, a second machine, and the interpreter-level work behind these
numbers are in the <a href="docs/readme/">README</a>):
</p>
<div class="scroll">
<table>
<thead><tr><th>What you're waiting on</th><th class="num">sxn</th><th class="num">Node</th><th class="num">Bun</th><th>In plain terms</th></tr></thead>
<tbody>
<tr>
<td>Starting a new process</td>
<td class="num yes">8.4 ms</td><td class="num">41.6 ms</td><td class="num">9.2 ms</td>
<td>About 5x faster than Node to start, and a hair ahead of Bun. Matters for a CLI tool or a serverless cold start</td>
</tr>
<tr>
<td>Processing binary data (<code>Buffer</code>)</td>
<td class="num yes">19.2 ms</td><td class="num">23.8 ms</td><td class="num">27.6 ms</td>
<td>Faster than both, at the operation almost every server-side script does constantly</td>
</tr>
<tr>
<td>Encoding text (<code>TextEncoder</code>)</td>
<td class="num yes">4.7 ms</td><td class="num">38.9 ms</td><td class="num">6.3 ms</td>
<td>8x faster than Node, ahead of Bun too</td>
</tr>
<tr>
<td>Worst single GC-style pause</td>
<td class="num yes">0.04 ms</td><td class="num">0.36 ms</td><td class="num">2.59 ms</td>
<td>No JIT means no warm-up stalls. The most predictable of the three, which is what a real-time or low-latency workload actually needs</td>
</tr>
<tr>
<td>Firing many event listeners</td>
<td class="num">6.6 ms</td><td class="num yes">5.1 ms</td><td class="num">9.3 ms</td>
<td>The one row Node wins, narrowly. Its JIT inlines the hot path in a way an interpreter structurally can't</td>
</tr>
</tbody>
</table>
</div>
<p style="color:var(--ink-soft); font-size:13px; margin: 10px 0 30px;">
All five rows, every runtime, same machine, same workload, run side by side by
<code>benchmarks/wintercg/run.sh</code> in the repo. Nothing here is cherry-picked
or estimated.
</p>
<div class="grid-2">
<div class="card">
<h3>WinterCG surface <span class="badge">45 / 55</span></h3>
<p><code>fetch</code>, <code>Sxn.serve</code> (HTTP, SSE, WebSocket upgrade), Web
Streams, Web Crypto, <code>structuredClone</code>. This half travels wherever the
engine is embedded. It's not tied to Node emulation.</p>
</div>
<div class="card">
<h3>Node compatibility <span class="badge">24 / ~37</span></h3>
<p>CommonJS, <code>node:</code> builtins, and <code>.node</code> native addons through
a from-scratch Node-API implementation, real enough that <code>next-swc</code>,
the Rust binary Next.js compiles JSX with, loads and runs under it.</p>
</div>
<div class="card">
<h3>Calling native code</h3>
<p><code>Sxn.ffi</code> calls a C function through libffi. It's an engine capability,
not a Node one. The design reasoning for that split, and what it means for
mobile, is in <a href="docs/native/">spec/NATIVE.md</a>.</p>
</div>
<div class="card">
<h3>Precompiled bytecode</h3>
<p><code>sxn compile app.js</code> writes a <code>.sxbc</code> file that skips
parsing entirely on later runs, measured 12% faster on a one-line script, 37%
on a 618 KB generated file. <code>--compile-cache</code> does the same thing
automatically, on every launch. <a href="docs/bytecode/">spec/BYTECODE.md</a>.</p>
</div>
</div>
<p style="margin-top:26px; color:var(--ink-mid); font-size:14.5px; max-width:66ch;">
Every number above is measured, not estimated. The full benchmark methodology,
both test machines' specs, and the interpreter-level optimizations behind them are in
the <a href="docs/readme/">project README</a>.
</p>
</section>
<section id="contributing">
<h2 class="h">Contributing</h2>
<p class="lede-s">
This project is young, opinionated in places, and actively looking for people who'll
push back on those opinions. If something here reads as "obviously the right call" and
you don't think it is, that's exactly the kind of issue worth opening.
</p>
<div class="grid-2">
<div class="card">
<h3>What's genuinely open</h3>
<ul class="check">
<li>The shape and scope of <code>safe</code>/<code>unsafe</code></li>
<li>Which TypeScript forms get real support next</li>
<li>Ownership and borrow-checking rules and their error messages</li>
<li><code>node:</code> and WinterCG coverage priorities</li>
<li>Naming, ergonomics, anything that reads as a mistake</li>
</ul>
</div>
<div class="card">
<h3>What isn't</h3>
<ul class="plain">
<li>Adding a JIT, or anything else that generates machine code at runtime.
iOS won't grant that entitlement to a third-party app, and running there is the point</li>
</ul>
<p style="margin-top:14px;">
Everything above is a real conversation. That one line is a constraint the project
is built around, not a preference.
</p>
</div>
</div>
<p style="margin-top:8px;">
Ideological disagreement is welcome too. If you think the ownership model is solving
the wrong problem, or that the safe/unsafe split should work differently, open an issue
and make the case. The specs in <code>spec/</code> are the actual design surface of this
project, not settled history:
</p>
<ul class="plain" style="margin-bottom: 20px;">
<li><a href="docs/language/">spec/LANGUAGE.md</a>: the language contract</li>
<li><a href="docs/abi/">spec/ABI.md</a>: the native/JS boundary</li>
<li><a href="docs/implementation/">spec/IMPLEMENTATION.md</a>: what's real today, and what isn't yet</li>
<li><a href="docs/runtime/">spec/RUNTIME.md</a> & <a href="docs/node/">spec/NODE.md</a>: the two compatibility surfaces</li>
</ul>
<div class="cta-row">
<a class="btn btn-primary" href="https://github.com/SxfeScript/sxfescript/issues/new">Open an issue</a>
<a class="btn btn-ghost" href="https://github.com/SxfeScript/sxfescript/pulls">See open pull requests</a>
</div>
</section>
<footer>
<div class="row">
<p>SxfeScript / ArcSX · the docs pages are generated from the repo's own markdown.</p>
<div class="links">
<a href="https://github.com/SxfeScript/sxfescript">Source</a>
<a href="docs/">Docs</a>
<a href="llms.txt">llms.txt</a>
<a href="https://github.com/SxfeScript/sxfescript/issues">Issues</a>
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