Resolve user's PDS and DID with Slingshot

src/commands/sync-cmd.ts

···
 import { consola } from "consola";
 import { exists, readJson, loadConfig } from "../utils.ts";
 import { parse } from "yaml";
+import type { AtprotoDid, Handle } from "@atcute/lexicons/syntax";
 
 export const syncCmd = defineCommand({
   async run({ cmd, args }) {
···
 
     const mapPath = join(process.cwd(), "/leaflet-md.map.json");
 
-    const handler = new CredentialManager({ service: "https://bsky.social" });
-    const client = new Client({ handler: handler });
-
     if (!process.env.BSKY_HANDLE) {
       throw new Error("BSKY_HANDLE not provided in .env");
     }
 
+    const miniDocRes = await fetch(
+      `https://slingshot.microcosm.blue/xrpc/com.bad-example.identity.resolveMiniDoc?identifier=${encodeURIComponent(process.env.BSKY_HANDLE)}`
+    );
+    if (!miniDocRes.ok)
+      throw new Error(
+        `Slingshot status: ${miniDocRes.status} - ${miniDocRes.statusText}\n${((await miniDocRes.json()) as any).message}`
+      );
+    const miniDoc = (await miniDocRes.json()) as { did: AtprotoDid; handle: Handle; pds: string; signing_key: string };
+
+    const handler = new CredentialManager({ service: miniDoc.pds });
+    const client = new Client({ handler: handler });
+
     if (!process.env.BSKY_PASSW) {
       throw new Error("BSKY_PASSW not provided in .env");
     }
···
     const publications = new Map<RecordKey, string>();
     const uploadedDocuments = new Map<RecordKey, { cid: string; publishedAt?: string }>();
 
-    const carReq = await fetch(`${handler.session!.pdsUri!}/xrpc/com.atproto.sync.getRepo?did=${handler.session!.did}`);
+    const carReq = await fetch(`${miniDoc.pds}/xrpc/com.atproto.sync.getRepo?did=${miniDoc.did}`);
     await using repo = RepoReader.fromStream(carReq.body!);
 
     for await (const entry of repo) {
···
     } else {
       if (publications.size > 0) {
         const publication = publications.entries().next().value!;
-        publicationUri = `at://${handler.session!.did}/pub.leaflet.publication/${publication[0]}`;
+        publicationUri = `at://${miniDoc.did}/pub.leaflet.publication/${publication[0]}`;
         publicationName = publication[1];
       } else {
         throw new Error("Could not find any publications in your repo.");
···
       uploadDate ??= new Date(Date.now()).toISOString();
 
       const doc = generateDoc(
-        handler.session!.did,
+        miniDoc.did,
         publicationUri,
         [...prependBlocks, ...generateBlocks(ast.children, uploadedImages), ...appendBlocks],
         title,
···
       const res = await client.post("com.atproto.repo.putRecord", {
         input: {
           collection: "pub.leaflet.document",
-          repo: handler.session!.did,
+          repo: miniDoc.did,
           rkey: tid,
           record: doc,
         },