initialize project with basic structure and dependencies

scripts/gen-key.mjs

@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+import { createPrivateKey, sign } from "crypto";
+import { readFileSync } from "fs";
+import { resolve, dirname } from "path";
+import { fileURLToPath } from "url";
+
+const envPath = resolve(dirname(fileURLToPath(import.meta.url)), "../.env");
+
+let privateKeyB64 = process.env.LICENSE_PRIVATE_KEY;
+
+if (!privateKeyB64) {
+  try {
+    const envContents = readFileSync(envPath, "utf8");
+    const match = envContents.match(/^LICENSE_PRIVATE_KEY=(.+)$/m);
+    if (match) privateKeyB64 = match[1].trim();
+  } catch {}
+}
+
+if (!privateKeyB64) {
+  console.error("LICENSE_PRIVATE_KEY not found in env or .env file");
+  process.exit(1);
+}
+
+const window = Math.floor(Date.now() / 1000 / 300);
+const msg = Buffer.from(String(window));
+
+const privateKey = createPrivateKey({
+  key: Buffer.from(privateKeyB64, "base64"),
+  format: "der",
+  type: "pkcs8",
+});
+
+const sig = sign(null, msg, privateKey);
+const key = sig.toString("base64url");
+
+const minutesLeft = 5 - (Math.floor(Date.now() / 1000) % 300) / 60;
+
+console.log(`\nLicense key (valid for ~${minutesLeft.toFixed(1)} more minutes):\n`);
+console.log(key);
+console.log();

scripts/gen-keypair.mjs

@@ -0,0 +1,13 @@
+#!/usr/bin/env node
+import { generateKeyPairSync } from "crypto";
+
+const { privateKey, publicKey } = generateKeyPairSync("ed25519", {
+  privateKeyEncoding: { type: "pkcs8", format: "der" },
+  publicKeyEncoding: { type: "spki", format: "der" },
+});
+
+console.log("Add these to your .env files:\n");
+console.log(`LICENSE_PRIVATE_KEY=${privateKey.toString("base64")}`);
+console.log(`LICENSE_PUBLIC_KEY=${publicKey.toString("base64")}`);
+console.log("\nLICENSE_PRIVATE_KEY goes on your LOCAL machine only.");
+console.log("LICENSE_PUBLIC_KEY goes on the SERVER .env only.");