Split out the concept of headless and an archive peer. Add better logging for URL params

src/Sync.ts

@@ -2,11 +2,13 @@ import { openDatabase, getData, addData, addDataArray, clearData, deleteData, me
 import { log, logID } from "log";
 
 export class Sync {
+    isArchivePeer:boolean = false;
     userID: string = "";
 
     userIDsToSync: Set<string> = new Set();
 
-    constructor() {
+    setArchive(isHeadless:boolean) {
+        this.isArchivePeer = isHeadless;
     }
 
     setUserID(userID: string) {
@@ -14,7 +16,12 @@ export class Sync {
     }
 
     shouldSyncUserID(userID: string) {
-        return true;
+        let shouldSyncAllUsers = this.isArchivePeer;
+        if (shouldSyncAllUsers) {
+            return true;
+        }
+
+        return this.userIDsToSync.has(userID);
     }
 
     //     shouldSyncUserID(userID: string) {