Suppress native keyboard and fix iOS Safari v86 boot

Sets inputmode=none on the demo textarea and xterm's helper textarea
so mobile browsers don't pop the native OSK while tap-positioning
still works. Copies both v86.wasm and v86-fallback.wasm into
public/v86/build/ at fetch time and points v86 there, so the
fallback is reachable on browsers without SharedArrayBuffer
(iOS Safari on GitHub Pages). Memory shrunk to 128 MB / 2 MB VGA
to stay under iOS limits.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: chapterjason

scripts/fetch-v86-assets.mjs

@@ -1,4 +1,4 @@
-import { createWriteStream, existsSync, mkdirSync, statSync } from "node:fs";
+import { copyFileSync, createWriteStream, existsSync, mkdirSync, statSync } from "node:fs";
 import { dirname, join } from "node:path";
 import { pipeline } from "node:stream/promises";
 import { fileURLToPath } from "node:url";
@@ -35,3 +35,12 @@ for (const f of files) {
     process.exitCode = 1;
   }
 }
+
+const wasms = ["v86.wasm", "v86-fallback.wasm"];
+for (const name of wasms) {
+  const src = join(root, "node_modules/v86/build", name);
+  const out = join(root, "public/v86/build", name);
+  mkdirSync(dirname(out), { recursive: true });
+  copyFileSync(src, out);
+  console.log(`✓ copied ${name}`);
+}

src/index.html

@@ -26,7 +26,7 @@
     </div>
     <div class="demo">
       <label for="demo-input">Tap into the field, then use the keyboard below:</label>
-      <textarea id="demo-input" autofocus placeholder="Type here...">Lorem ipsum dolor sit amet,
+      <textarea id="demo-input" autofocus inputmode="none" placeholder="Type here...">Lorem ipsum dolor sit amet,
 consectetur adipiscing elit.
 Sed do eiusmod tempor incididunt
 ut labore et dolore magna aliqua.

src/linux.ts

@@ -7,7 +7,6 @@ import { WebLinksAddon } from "@xterm/addon-web-links";
 import "@xterm/xterm/css/xterm.css";
 // @ts-expect-error — v86 ships no types
 import V86 from "v86";
-import wasmUrl from "v86/build/v86.wasm?url";
 import "./keyboard/virtual-keyboard";
 import { terminalAdapter } from "./keyboard/output";
 
@@ -44,6 +43,7 @@ term.loadAddon(new WebLinksAddon());
 
 const host = document.getElementById("term")!;
 term.open(host);
+term.textarea?.setAttribute("inputmode", "none");
 fit.fit();
 term.loadAddon(new LigaturesAddon());
 
@@ -63,9 +63,9 @@ term.writeln("\x1b[1;36mLinux on v86\x1b[0m — x86 emulator in WebAssembly");
 term.writeln("Booting from linux4.iso (busybox)…\r\n");
 
 const emulator = new V86Constructor({
-  wasm_path: wasmUrl,
-  memory_size: 512 * 1024 * 1024,
-  vga_memory_size: 8 * 1024 * 1024,
+  wasm_path: HOST + "build/v86.wasm",
+  memory_size: 128 * 1024 * 1024,
+  vga_memory_size: 2 * 1024 * 1024,
   bios: { url: HOST + "bios/seabios.bin" },
   vga_bios: { url: HOST + "bios/vgabios.bin" },
   cdrom: { url: HOST + "images/linux.iso" },