diff --git a/package-lock.json b/package-lock.json
index 2043820..44bbcbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,7 +31,7 @@
         "get-relative-path": "^1.0.2",
         "get-stream": "^6.0.1",
         "h3": "^1.12.0",
-        "heatsync": "^2.6.0",
+        "heatsync": "^2.7.0",
         "lru-cache": "^10.4.3",
         "minimist": "^1.2.8",
         "prettier-bytes": "^1.0.4",
@@ -1868,12 +1868,15 @@
       }
     },
     "node_modules/heatsync": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/heatsync/-/heatsync-2.6.0.tgz",
-      "integrity": "sha512-UfemOt4Kg1hvhDj/Zz8sYa1pF73ul+tF19MYNisYoOymXoTo4iCZv2BDdCMFE1xvZ6YFjcMoekb/aeBU1uqFjQ==",
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/heatsync/-/heatsync-2.7.0.tgz",
+      "integrity": "sha512-9ILOyyHFZKfIrqBmNz+fwKd+zupFE2UqFZ9k4FjRcMjNDp7GtW+K9n2htXLy3CwdDTRd6NV6BPxKvU51UqKIJA==",
       "license": "MIT",
       "dependencies": {
         "backtracker": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=14.6.0"
       }
     },
     "node_modules/html-es6cape": {
diff --git a/package.json b/package.json
index 1ee12ad..83dc636 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "get-relative-path": "^1.0.2",
     "get-stream": "^6.0.1",
     "h3": "^1.12.0",
-    "heatsync": "^2.6.0",
+    "heatsync": "^2.7.0",
     "lru-cache": "^10.4.3",
     "minimist": "^1.2.8",
     "prettier-bytes": "^1.0.4",
diff --git a/src/d2m/actions/set-presence.js b/src/d2m/actions/set-presence.js
index a9f072a..d16835e 100644
--- a/src/d2m/actions/set-presence.js
+++ b/src/d2m/actions/set-presence.js
@@ -38,13 +38,14 @@ const guildPresenceSetting = new class {
 	}
 }
 
-class Presence {
+class Presence extends sync.ReloadableClass {
 	/** @type {string} */ userID
 	/** @type {{presence: "online" | "offline" | "unavailable", status_msg?: string}} */ data
 	/** @private @type {?string | undefined} */ mxid
 	/** @private @type {number} */ delay = Math.random()
 
 	constructor(userID) {
+		super()
 		this.userID = userID
 	}
 
@@ -66,12 +67,13 @@ class Presence {
 		// This random delay will space them out over the whole 28 second cycle.
 		setTimeout(() => {
 			api.setPresence(this.data, mxid).catch(() => {})
-		}, this.delay)
+		}, this.delay * presenceLoopInterval).unref()
 	}
 }
+sync.reloadClassMethods(Presence)
 
 const presenceTracker = new class {
-	/** @private @type {Map<string, Presence>} userID -> Presence */ presences
+	/** @private @type {Map<string, Presence>} userID -> Presence */ presences = sync.remember(() => new Map())
 
 	constructor() {
 		sync.addTemporaryInterval(() => this.syncPresences(), presenceLoopInterval)
diff --git a/src/stdin.js b/src/stdin.js
index 9051395..6c49bdd 100644
--- a/src/stdin.js
+++ b/src/stdin.js
@@ -19,6 +19,7 @@ const eventDispatcher = sync.require("./d2m/event-dispatcher")
 const updatePins = sync.require("./d2m/actions/update-pins")
 const speedbump = sync.require("./d2m/actions/speedbump")
 const ks = sync.require("./matrix/kstate")
+const setPresence = sync.require("./d2m/actions/set-presence")
 const guildID = "112760669178241024"
 
 const extraContext = {}
diff --git a/src/web/server.test.js b/src/web/server.test.js
index 7310166..afcb8b0 100644
--- a/src/web/server.test.js
+++ b/src/web/server.test.js
@@ -1,5 +1,6 @@
 // @ts-check
 
+const {ReadableStream} = require("stream/web")
 const {test} = require("supertape")
 const {router} = require("../../test/web")
 const assert = require("assert").strict