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ttyd でブラウザに Neovim を映す

目的は、Web会議でのデモ。他のWebページに行き来しながらデモをしたい。

1. headless で Neovim を起動

nvim --headless --listen /tmp/nvim

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import * as jose from "jose";

const sign = await new jose.SignJWT({ hello: "world!" })
  .setProtectedHeader({ alg: "HS256" })
  .setIssuedAt()
  .setExpirationTime("2h")
  .sign(Buffer.from("SECRET!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"));

const { payload } = await jose.jwtVerify(sign, Buffer.from("SECRET!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"));
console.log(payload); // { hello: 'world!', iat: 1692892919, exp: 1692900119 }

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create user iam_user with login;
grant rds_iam to iam_user;
grant rds_superuser to iam_user;
grant create on database postgres to iam_user;

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sudo nsenter -t "$(docker inspect awesome_kapitsa|jq '.[].State.Pid' -r)" -n ss -tln

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.PHONY: bash
bash:
	TMP=$$(mktemp); trap "rm $$TMP" EXIT; devcontainer up --workspace-folder . > $$TMP; docker exec -it -u$$(jq .remoteUser $$TMP -r) -w$$(jq .remoteWorkspaceFolder $$TMP -r) $$(jq .containerId $$TMP -r) bash

yskszk63

use std::fmt;
use std::io::{self, Read, Write};

#[derive(Clone, Copy)]
enum DdSk {
    Dodo,
    Suko,
}

impl DdSk {

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import { Server } from "https://deno.land/std@0.148.0/http/mod.ts";

import React from "https://esm.sh/react@18.2.0";
import { renderToReadableStream } from "https://esm.sh/react-dom@18.2.0/server"

async function wake(): Promise<boolean> {
  console.log("process...");
  await new Promise(resolve => setTimeout(resolve, 2000));
  return false;
}

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CC = /opt/wasi-sdk/bin/clang
CFLAGS =
LDFLAGS  = -mexec-model=reactor
LDFLAGS += -Wl,--export-all

prog.wasm: lib.c Makefile
	$(CC) $(LDFLAGS) -o $@ $<

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/*
 * ```
 * $ node ./run.mjs && deno run ./run.mjs && echo ok
 * ok
 * ```
 */

if (typeof process !== "undefined") {
    const { ReadableStream, WritableStream } = await import("stream/web");
    Object.assign(globalThis, {

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const buf = new Int32Array(new SharedArrayBuffer(4));
const r = await Atomics.waitAsync(buf, 0, 0);
if (!r.async) { throw new Error(); }
console.log("BEGIN");
const r2 = await r.value;
console.log("DONE:", r2); // unreachable!

// ```bash
// $ node ./run.mjs
// BEGIN