The first commit, the core and all files is adding to repo

scripts/supervise.mjs

@@ -0,0 +1,37 @@
+import { spawn } from "node:child_process";
+import { existsSync } from "node:fs";
+if (existsSync(".env.local")) process.loadEnvFile(".env.local");
+const dev = process.argv[2] === "dev";
+const children = [];
+let stopping = false;
+function run(args) {
+  const c = spawn(process.execPath, args, {
+    stdio: "inherit",
+    env: process.env,
+  });
+  children.push(c);
+  c.on("exit", (code) => {
+    if (!stopping) {
+      console.error(
+        `MineGeo process exited (${code}). Shutting down companion process.`,
+      );
+      stop(code ?? 1);
+    }
+  });
+  return c;
+}
+function stop(code = 0) {
+  if (stopping) return;
+  stopping = true;
+  for (const c of children) c.kill("SIGTERM");
+  setTimeout(() => process.exit(code), 500).unref();
+}
+process.on("SIGINT", () => stop());
+process.on("SIGTERM", () => stop());
+run([
+  "node_modules/next/dist/bin/next",
+  dev ? "dev" : "start",
+  "--hostname",
+  process.env.MINEGEO_HOST || "127.0.0.1",
+]);
+run(["--import", "tsx", "worker/main.ts"]);