diff --git a/passbook/admin/templates/administration/overview.html b/passbook/admin/templates/administration/overview.html
index 95da74a2e..e1d6a6b58 100644
--- a/passbook/admin/templates/administration/overview.html
+++ b/passbook/admin/templates/administration/overview.html
@@ -167,18 +167,26 @@
                     <i class="pf-icon pf-icon-server"></i> {% trans 'Workers' %}
                 </div>
             </div>
-            <div class="pf-c-card__body">
-                {% if worker_count < 1 %}
-                <p class="aggregate-status">
-                    <i class="fa fa-exclamation-triangle"></i> {{ worker_count }}
-                </p>
-                <p>{% trans 'No workers connected.' %}</p>
-                {% else %}
-                <p class="aggregate-status">
-                    <i class="fa fa-check-circle"></i> {{ worker_count }}
-                </p>
-                {% endif %}
-            </div>
+            <fetch-fill-slot class="pf-c-card__body" url="{% url 'passbook_api:admin_overview-list' %}" key="worker_count">
+                <div slot="value < 1">
+                    <p class="aggregate-status">
+                        <i class="fa fa-exclamation-triangle"></i> <span data-value></span>
+                    </p>
+                    <p>{% trans 'No workers connected.' %}</p>
+                </div>
+                <div slot="value >= 1">
+                    <p class="aggregate-status">
+                        <i class="fa fa-check-circle"></i> <span data-value></span>
+                    </p>
+                </div>
+                <div>
+                    <span class="pf-c-spinner" role="progressbar" aria-valuetext="Loading...">
+                        <span class="pf-c-spinner__clipper"></span>
+                        <span class="pf-c-spinner__lead-ball"></span>
+                        <span class="pf-c-spinner__tail-ball"></span>
+                    </span>
+                </div>
+            </fetch-fill-slot>
         </div>
 
         <a class="pf-c-card pf-c-card-aggregate pf-m-hoverable pf-m-compact" data-target="modal" data-modal="clearCacheModalRoot">
diff --git a/passbook/admin/views/overview.py b/passbook/admin/views/overview.py
index 0941eeaf4..08acc6a6b 100644
--- a/passbook/admin/views/overview.py
+++ b/passbook/admin/views/overview.py
@@ -13,7 +13,6 @@ from passbook.admin.tasks import VERSION_CACHE_KEY, update_latest_version
 from passbook.core.models import Application, Provider, Source, User
 from passbook.flows.models import Flow, Stage
 from passbook.policies.models import Policy
-from passbook.root.celery import CELERY_APP
 from passbook.stages.invitation.models import Invitation
 
 
@@ -49,7 +48,6 @@ class AdministrationOverviewView(AdminRequiredMixin, TemplateView):
         kwargs["invitation_count"] = len(Invitation.objects.all())
         kwargs["version"] = parse(__version__)
         kwargs["version_latest"] = self.get_latest_version()
-        kwargs["worker_count"] = len(CELERY_APP.control.ping(timeout=0.5))
         kwargs["providers_without_application"] = Provider.objects.filter(
             application=None
         )
diff --git a/passbook/static/static/package-lock.json b/passbook/static/static/package-lock.json
new file mode 100644
index 000000000..8daa213fb
--- /dev/null
+++ b/passbook/static/static/package-lock.json
@@ -0,0 +1,584 @@
+{
+  "requires": true,
+  "lockfileVersion": 1,
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+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.10.4"
+      }
+    },
+    "@babel/helper-validator-identifier": {
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+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz",
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+      "dev": true
+    },
+    "@babel/highlight": {
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.10.4.tgz",
+      "integrity": "sha512-i6rgnR/YgPEQzZZnbTHHuZdlE8qyoBNalD6F+q4vAFlcMEcqmkoG+mPqJYJCo63qPf74+Y1UZsl3l6f7/RIkmA==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-validator-identifier": "^7.10.4",
+        "chalk": "^2.0.0",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "@fortawesome/fontawesome-free": {
+      "version": "5.15.0",
+      "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-free/-/fontawesome-free-5.15.0.tgz",
+      "integrity": "sha512-wXetjQBNMTP59MAYNR1tdahMDOLx3FYj3PKdso7PLFLDpTvmAIqhSSEqnSTmWKahRjD+Sh5I5635+5qaoib5lw=="
+    },
+    "@patternfly/patternfly": {
+      "version": "4.42.2",
+      "resolved": "https://registry.npmjs.org/@patternfly/patternfly/-/patternfly-4.42.2.tgz",
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+      "dev": true,
+      "requires": {
+        "@types/html-minifier": "^3.5.3",
+        "clean-css": "^4.2.1",
+        "html-minifier": "^4.0.0",
+        "magic-string": "^0.25.0",
+        "parse-literals": "^1.2.0"
+      }
+    },
+    "no-case": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/no-case/-/no-case-2.3.2.tgz",
+      "integrity": "sha512-rmTZ9kz+f3rCvK2TD1Ue/oZlns7OGoIWP4fc3llxxRXlOkHKoWPPWJOfFYpITabSow43QJbRIoHQXtt10VldyQ==",
+      "dev": true,
+      "requires": {
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+      }
+    },
+    "param-case": {
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+      "dev": true,
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+      }
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+      "dev": true,
+      "requires": {
+        "typescript": "^2.9.2 || ^3.0.0"
+      }
+    },
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+      "dev": true
+    },
+    "randombytes": {
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+      "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
+      "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "^5.1.0"
+      }
+    },
+    "relateurl": {
+      "version": "0.2.7",
+      "resolved": "https://registry.npmjs.org/relateurl/-/relateurl-0.2.7.tgz",
+      "integrity": "sha1-VNvzd+UUQKypCkzSdGANP/LYiKk=",
+      "dev": true
+    },
+    "resolve": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.17.0.tgz",
+      "integrity": "sha512-ic+7JYiV8Vi2yzQGFWOkiZD5Z9z7O2Zhm9XMaTxdJExKasieFCr+yXZ/WmXsckHiKl12ar0y6XiXDx3m4RHn1w==",
+      "dev": true,
+      "requires": {
+        "path-parse": "^1.0.6"
+      }
+    },
+    "rollup": {
+      "version": "2.28.2",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.28.2.tgz",
+      "integrity": "sha512-8txbsFBFLmm9Xdt4ByTOGa9Muonmc8MfNjnGAR8U8scJlF1ZW7AgNZa7aqBXaKtlvnYP/ab++fQIq9dB9NWUbg==",
+      "requires": {
+        "fsevents": "~2.1.2"
+      }
+    },
+    "rollup-plugin-commonjs": {
+      "version": "10.1.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-commonjs/-/rollup-plugin-commonjs-10.1.0.tgz",
+      "integrity": "sha512-jlXbjZSQg8EIeAAvepNwhJj++qJWNJw1Cl0YnOqKtP5Djx+fFGkp3WRh+W0ASCaFG5w1jhmzDxgu3SJuVxPF4Q==",
+      "dev": true,
+      "requires": {
+        "estree-walker": "^0.6.1",
+        "is-reference": "^1.1.2",
+        "magic-string": "^0.25.2",
+        "resolve": "^1.11.0",
+        "rollup-pluginutils": "^2.8.1"
+      }
+    },
+    "rollup-plugin-minify-html-literals": {
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-minify-html-literals/-/rollup-plugin-minify-html-literals-1.2.5.tgz",
+      "integrity": "sha512-x4FzCnbBpYdme7MQDS3+18CvYLqakAtM/JmA3hqXplwzMeZWW3l14KU7H33RhJlHH8Klgv49hGtBRLWLfjCudw==",
+      "dev": true,
+      "requires": {
+        "minify-html-literals": "^1.3.2",
+        "rollup-pluginutils": "^2.8.2"
+      }
+    },
+    "rollup-plugin-node-resolve": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-5.2.0.tgz",
+      "integrity": "sha512-jUlyaDXts7TW2CqQ4GaO5VJ4PwwaV8VUGA7+km3n6k6xtOEacf61u0VXwN80phY/evMcaS+9eIeJ9MOyDxt5Zw==",
+      "dev": true,
+      "requires": {
+        "@types/resolve": "0.0.8",
+        "builtin-modules": "^3.1.0",
+        "is-module": "^1.0.0",
+        "resolve": "^1.11.1",
+        "rollup-pluginutils": "^2.8.1"
+      }
+    },
+    "rollup-plugin-sourcemaps": {
+      "version": "0.6.2",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-sourcemaps/-/rollup-plugin-sourcemaps-0.6.2.tgz",
+      "integrity": "sha512-9AwTKg3yRykwzemfLt71ySe0LvrAci+bpsOL1LaTYFk5BX4HF6X7DQfpHa74ANfSja3hyjiQkXCR8goSOnW//Q==",
+      "dev": true,
+      "requires": {
+        "@rollup/pluginutils": "^3.0.9",
+        "source-map-resolve": "^0.6.0"
+      }
+    },
+    "rollup-plugin-terser": {
+      "version": "7.0.2",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-terser/-/rollup-plugin-terser-7.0.2.tgz",
+      "integrity": "sha512-w3iIaU4OxcF52UUXiZNsNeuXIMDvFrr+ZXK6bFZ0Q60qyVfq4uLptoS4bbq3paG3x216eQllFZX7zt6TIImguQ==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.10.4",
+        "jest-worker": "^26.2.1",
+        "serialize-javascript": "^4.0.0",
+        "terser": "^5.0.0"
+      }
+    },
+    "rollup-pluginutils": {
+      "version": "2.8.2",
+      "resolved": "https://registry.npmjs.org/rollup-pluginutils/-/rollup-pluginutils-2.8.2.tgz",
+      "integrity": "sha512-EEp9NhnUkwY8aif6bxgovPHMoMoNr2FulJziTndpt5H9RdwC47GSGuII9XxpSdzVGM0GWrNPHV6ie1LTNJPaLQ==",
+      "dev": true,
+      "requires": {
+        "estree-walker": "^0.6.1"
+      }
+    },
+    "safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "dev": true
+    },
+    "serialize-javascript": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-4.0.0.tgz",
+      "integrity": "sha512-GaNA54380uFefWghODBWEGisLZFj00nS5ACs6yHa9nLqlLpVLO8ChDGeKRjZnV4Nh4n0Qi7nhYZD/9fCPzEqkw==",
+      "dev": true,
+      "requires": {
+        "randombytes": "^2.1.0"
+      }
+    },
+    "source-map": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+      "dev": true
+    },
+    "source-map-resolve": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.6.0.tgz",
+      "integrity": "sha512-KXBr9d/fO/bWo97NXsPIAW1bFSBOuCnjbNTBMO7N59hsv5i9yzRDfcYwwt0l04+VqnKC+EwzvJZIP/qkuMgR/w==",
+      "dev": true,
+      "requires": {
+        "atob": "^2.1.2",
+        "decode-uri-component": "^0.2.0"
+      }
+    },
+    "source-map-support": {
+      "version": "0.5.19",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",
+      "integrity": "sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==",
+      "dev": true,
+      "requires": {
+        "buffer-from": "^1.0.0",
+        "source-map": "^0.6.0"
+      }
+    },
+    "sourcemap-codec": {
+      "version": "1.4.8",
+      "resolved": "https://registry.npmjs.org/sourcemap-codec/-/sourcemap-codec-1.4.8.tgz",
+      "integrity": "sha512-9NykojV5Uih4lgo5So5dtw+f0JgJX30KCNI8gwhz2J9A15wD0Ml6tjHKwf6fTSa6fAdVBdZeNOs9eJ71qCk8vA==",
+      "dev": true
+    },
+    "supports-color": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+      "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+      "dev": true,
+      "requires": {
+        "has-flag": "^3.0.0"
+      }
+    },
+    "terser": {
+      "version": "5.3.4",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-5.3.4.tgz",
+      "integrity": "sha512-dxuB8KQo8Gt6OVOeLg/rxfcxdNZI/V1G6ze1czFUzPeCFWZRtvZMgSzlZZ5OYBZ4HoG607F6pFPNLekJyV+yVw==",
+      "dev": true,
+      "requires": {
+        "commander": "^2.20.0",
+        "source-map": "~0.7.2",
+        "source-map-support": "~0.5.19"
+      },
+      "dependencies": {
+        "source-map": {
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+          "dev": true
+        }
+      }
+    },
+    "typescript": {
+      "version": "3.9.7",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
+      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "dev": true
+    },
+    "uglify-js": {
+      "version": "3.11.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.11.0.tgz",
+      "integrity": "sha512-e1KQFRCpOxnrJsJVqDUCjURq+wXvIn7cK2sRAx9XL3HYLL9aezOP4Pb1+Y3/o693EPk111Yj2Q+IUXxcpHlygQ==",
+      "dev": true
+    },
+    "upper-case": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/upper-case/-/upper-case-1.1.3.tgz",
+      "integrity": "sha1-9rRQHC7EzdJrp4vnIilh3ndiFZg=",
+      "dev": true
+    }
+  }
+}
diff --git a/passbook/static/static/package.json b/passbook/static/static/package.json
index d159c356c..b3ae9a484 100644
--- a/passbook/static/static/package.json
+++ b/passbook/static/static/package.json
@@ -1,8 +1,22 @@
 {
   "license": "MIT",
+  "scripts": {
+    "build": "rollup -c",
+    "watch": "rollup -c -w"
+  },
   "dependencies": {
     "@fortawesome/fontawesome-free": "^5.15.0",
     "@patternfly/patternfly": "^4.42.2",
-    "codemirror": "^5.58.1"
+    "codemirror": "^5.58.1",
+    "lit-element": "^2.4.0",
+    "lit-html": "^1.3.0",
+    "rollup": "^2.28.2"
+  },
+  "devDependencies": {
+    "rollup-plugin-commonjs": "^10.1.0",
+    "rollup-plugin-minify-html-literals": "^1.2.5",
+    "rollup-plugin-node-resolve": "^5.2.0",
+    "rollup-plugin-sourcemaps": "^0.6.2",
+    "rollup-plugin-terser": "^7.0.2"
   }
 }
diff --git a/passbook/static/static/passbook/passbook.css b/passbook/static/static/passbook/passbook.css
index 36bfb3c83..feb94337d 100644
--- a/passbook/static/static/passbook/passbook.css
+++ b/passbook/static/static/passbook/passbook.css
@@ -283,7 +283,7 @@ input[data-is-monospace] {
 }
 
 /* Aggregate Cards */
-.pf-c-card.pf-c-card-aggregate > .pf-c-card__body > .aggregate-status {
+.pf-c-card.pf-c-card-aggregate > .pf-c-card__body .aggregate-status {
     font-size: var(--pf-global--icon--FontSize--lg);
     text-align: center;
 }
diff --git a/passbook/static/static/rollup.config.js b/passbook/static/static/rollup.config.js
new file mode 100644
index 000000000..f0d5d43e9
--- /dev/null
+++ b/passbook/static/static/rollup.config.js
@@ -0,0 +1,28 @@
+import resolve from 'rollup-plugin-node-resolve';
+import commonjs from 'rollup-plugin-commonjs';
+import minifyHTML from 'rollup-plugin-minify-html-literals';
+import { terser } from 'rollup-plugin-terser';
+import sourcemaps from 'rollup-plugin-sourcemaps';
+
+export default [{
+  input: './src/passbook.js',
+  output: [
+    {
+      format: 'iife',
+      dir: 'passbook',
+      sourcemap: true,
+    }
+  ],
+
+  plugins: [
+    resolve({browser: true}),
+    commonjs(),
+    sourcemaps(),
+    minifyHTML(),
+    terser(),
+  ],
+
+  watch: {
+    clearScreen: false,
+  },
+}];
diff --git a/passbook/static/static/src/FetchFillSlot.js b/passbook/static/static/src/FetchFillSlot.js
new file mode 100644
index 000000000..6b7a8546b
--- /dev/null
+++ b/passbook/static/static/src/FetchFillSlot.js
@@ -0,0 +1,73 @@
+import { LitElement, html } from 'lit-element';
+
+class FetchFillSlot extends LitElement {
+
+    static get properties() {
+        return {
+            url: { type: String },
+            key: { type: String },
+            value: { type: Number },
+        };
+    }
+
+    constructor() {
+        super();
+    }
+
+    comparison(slotName) {
+        var comparisonOperatorsHash = {
+            '<': function (a, b) { return a < b; },
+            '>': function (a, b) { return a > b; },
+            '>=': function (a, b) { return a >= b; },
+            '<=': function (a, b) { return a <= b; },
+            '==': function (a, b) { return a == b; },
+            '!=': function (a, b) { return a != b; },
+            '===': function (a, b) { return a === b; },
+            '!==': function (a, b) { return a !== b; },
+        };
+        const tokens = slotName.split(" ");
+        if (tokens.length < 3) {
+            throw new Error("nah");
+        }
+        let a = tokens[0];
+        if (a === "value") {
+            a = this.value;
+        } else {
+            a = parseInt(a, 10);
+        }
+        let b = tokens[2];
+        if (b === "value") {
+            b = this.value;
+        } else {
+            b = parseInt(b, 10);
+        }
+        const comp = tokens[1];
+        if (!(comp in comparisonOperatorsHash)) {
+            throw new Error("Invalid comparison")
+        }
+        return comparisonOperatorsHash[comp](a, b);
+    }
+
+    firstUpdated() {
+        fetch(this.url).then(r => r.json()).then(r => r[this.key]).then(r => this.value = r);
+    }
+
+    render() {
+        if (this.value === undefined) {
+            return html`<slot></slot>`;
+        }
+        let selectedSlot = "";
+        this.querySelectorAll("[slot]").forEach(slot => {
+            const comp = slot.getAttribute("slot");
+            if (this.comparison(comp)) {
+                selectedSlot = comp;
+            }
+        });
+        this.querySelectorAll("[data-value]").forEach(dv => {
+            dv.textContent = this.value;
+        });
+        return html`<slot name=${selectedSlot}></slot>`;
+    }
+}
+
+customElements.define('fetch-fill-slot', FetchFillSlot);
diff --git a/passbook/static/static/passbook/passbook.js b/passbook/static/static/src/passbook.js
similarity index 99%
rename from passbook/static/static/passbook/passbook.js
rename to passbook/static/static/src/passbook.js
index 1b9c65b5e..124b449c9 100644
--- a/passbook/static/static/passbook/passbook.js
+++ b/passbook/static/static/src/passbook.js
@@ -1,3 +1,5 @@
+import './FetchFillSlot.js';
+
 // Button Dropdowns
 document.querySelectorAll("button.pf-c-dropdown__toggle").forEach((b) => {
     b.addEventListener('click', (e) => {
diff --git a/passbook/static/static/yarn.lock b/passbook/static/static/yarn.lock
deleted file mode 100644
index 4c5994bc8..000000000
--- a/passbook/static/static/yarn.lock
+++ /dev/null
@@ -1,18 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-"@fortawesome/fontawesome-free@^5.15.0":
-  version "5.15.0"
-  resolved "https://registry.yarnpkg.com/@fortawesome/fontawesome-free/-/fontawesome-free-5.15.0.tgz#631b04d6301fee06d4bd7a9824fe7157735cbdb6"
-  integrity sha512-wXetjQBNMTP59MAYNR1tdahMDOLx3FYj3PKdso7PLFLDpTvmAIqhSSEqnSTmWKahRjD+Sh5I5635+5qaoib5lw==
-
-"@patternfly/patternfly@^4.42.2":
-  version "4.42.2"
-  resolved "https://registry.yarnpkg.com/@patternfly/patternfly/-/patternfly-4.42.2.tgz#236d87bd85f00cb7a16d0c2956638ecedc3fa6ef"
-  integrity sha512-VLDhNko4D09sKcnzWEzMr8T8z9btqAYpuK0ntWMsAwi+/C9XsKyaxPioxuEsm7PeuW6OU0neEzSDYMSUnwrMBQ==
-
-codemirror@^5.58.1:
-  version "5.58.1"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.58.1.tgz#ec6bf38ad2a17f74c61bd00cc6dc5a69bd167854"
-  integrity sha512-UGb/ueu20U4xqWk8hZB3xIfV2/SFqnSLYONiM3wTMDqko0bsYrsAkGGhqUzbRkYm89aBKPyHtuNEbVWF9FTFzw==
diff --git a/static.Dockerfile b/static.Dockerfile
index f20783cde..82b0defd3 100644
--- a/static.Dockerfile
+++ b/static.Dockerfile
@@ -41,7 +41,7 @@ FROM node as npm-packager
 COPY --from=static-build /app/static/package.json /static/package.json
 COPY --from=static-build /app/static/yarn.lock /static/yarn.lock
 
-RUN cd /static && yarn
+RUN cd /static && npm i && npm run build
 
 FROM nginx