diff --git a/app/src/routes/trackers.ts b/app/src/routes/trackers.ts
index ab6033aa..7efe8c2e 100644
--- a/app/src/routes/trackers.ts
+++ b/app/src/routes/trackers.ts
@@ -37,6 +37,7 @@ export function registerTrackerRoutes(router: Router): void {
             device: 'no',
             inreach: '',
             spot: '',
+            skylines: '',
             email: ctx.request.body.email,
             name: ctx.request.body.name,
           };
@@ -50,6 +51,7 @@ export function registerTrackerRoutes(router: Router): void {
           device: tracker.device,
           inreach: tracker.inreach,
           spot: tracker.spot,
+          skylines: tracker.skylines,
         });
       } catch (e) {
         ctx.throw(400);
@@ -69,6 +71,7 @@ export function registerTrackerRoutes(router: Router): void {
           tracker.device = ctx.request.body.device;
           tracker.inreach = ctx.request.body.inreach;
           tracker.spot = ctx.request.body.spot;
+          tracker.skylines = ctx.request.body.skylines;
           tracker.updated = 0;
           await datastore.save({
             key,
@@ -81,6 +84,7 @@ export function registerTrackerRoutes(router: Router): void {
           device: tracker.device,
           inreach: tracker.inreach,
           spot: tracker.spot,
+          skylines: tracker.skylines,
         });
       } catch (e) {
         ctx.throw(400);
diff --git a/frontend/src/tracking/devices.ts b/frontend/src/tracking/devices.ts
index 68a605b9..ea924772 100644
--- a/frontend/src/tracking/devices.ts
+++ b/frontend/src/tracking/devices.ts
@@ -61,7 +61,7 @@ export class DeviceForm extends LitElement {
       <div class="container">
         ${!this.signedIn
           ? html`
-              <div class="notification my-4">
+              <div class="notification my-4 content">
                 <p class="my-4">Sign in to configure your tracking device by using the button below.</p>
                 <p class="my-4">
                   Once your tracker has been configured, your tracks for the past 24 hours will appear on the map. The
@@ -75,6 +75,14 @@ export class DeviceForm extends LitElement {
                 <p class="my-4">
                   You can disable tracking at any moment by setting your device to <strong>"no"</strong>.
                 </p>
+                <p class="my-4">
+                  Supported devices:
+                  <ul class="my-4">
+                    <li>InReach</li>
+                    <li>Spot</li>
+                    <li>SkyLines</li>
+                  </ul>
+                </p>
                 <p class="my-4">
                   <a href="mailto:help@flyxc.app?subject=FlyXC%20registration%20error">Contact us</a> if you have any
                   trouble registering your device.
@@ -94,12 +102,11 @@ export class DeviceForm extends LitElement {
                       id="inreach"
                       name="tracker"
                       value="inreach"
-                      @change=${(): void => void (this.device = 'inreach')}
+                      @change=${() => (this.device = 'inreach')}
                     />
                     InReach
                   </label>
                 </div>
-
                 <div class="field" style=${`display:${this.device == 'inreach' ? 'block' : 'none'}`}>
                   <label class="label"
                     >Raw KML data feed
@@ -126,7 +133,6 @@ export class DeviceForm extends LitElement {
                     Spot
                   </label>
                 </div>
-
                 <div class="field" style=${`display:${this.device == 'spot' ? 'block' : 'none'}`}>
                   <label class="label"
                     >SPOT id
@@ -137,21 +143,39 @@ export class DeviceForm extends LitElement {
                     http://share.findmespot.com/shared/faces/viewspots.jsp?glId=<strong>[id]</strong>
                   </p>
                 </div>
+
                 <div class="field">
                   <label class="label">
                     <input
                       type="radio"
-                      id="no"
+                      id="skylines"
                       name="tracker"
-                      value="no"
-                      @change=${(): void => void (this.device = 'no')}
+                      value="sklyines"
+                      @change=${() => (this.device = 'skylines')}
                     />
+                    Skylines
+                  </label>
+                </div>
+                <div class="field" style=${`display:${this.device == 'skylines' ? 'block' : 'none'}`}>
+                  <label class="label"
+                    >SkyLines pilot id
+                    <input id="skylines-id" class="input" type="text" name="skylines-id" />
+                  </label>
+                  <p class="help">
+                    Your SkyLines pilot's id is at the end of your SkyLines profile url:
+                    https://skylines.aero/users/<strong>[id]</strong>
+                  </p>
+                </div>
+
+                <div class="field">
+                  <label class="label">
+                    <input type="radio" id="no" name="tracker" value="no" @change=${() => (this.device = 'no')} />
                     Do not track me
                   </label>
                 </div>
                 <div class="field is-grouped">
                   <p class="control">
-                    <a class="button is-primary" @click=${(): void => this.updateTracker()}>
+                    <a class="button is-primary" @click=${() => this.updateTracker()}>
                       Save
                     </a>
                   </p>
@@ -190,6 +214,7 @@ export class DeviceForm extends LitElement {
       `token=${encodeURIComponent(this.auth.currentUser.get().getAuthResponse().id_token)}`,
       `inreach=${(shadowRoot.getElementById('inreach-url') as HTMLInputElement)?.value}`,
       `spot=${(shadowRoot.getElementById('spot-id') as HTMLInputElement)?.value}`,
+      `skylines=${(shadowRoot.getElementById('skylines-id') as HTMLInputElement)?.value}`,
     ];
     fetch('_updateTracker', {
       method: 'POST',
@@ -221,7 +246,7 @@ export class DeviceForm extends LitElement {
       .then((data) => {
         const shadowRoot = this.shadowRoot as ShadowRoot;
         // Radio buttons
-        ['inreach', 'spot', 'no'].map((device) => {
+        ['inreach', 'spot', 'skylines', 'no'].map((device) => {
           const radio = shadowRoot.getElementById(device) as HTMLInputElement;
           if (data.device == device) {
             radio.setAttribute('checked', '');
@@ -232,6 +257,8 @@ export class DeviceForm extends LitElement {
         inreach.value = data.inreach;
         const spot = shadowRoot.getElementById('spot-id') as HTMLInputElement;
         spot.value = data.spot;
+        const skylines = shadowRoot.getElementById('skylines-id') as HTMLInputElement;
+        skylines.value = data.skylines;
       });
   }
 
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index bc3f07d9..607934d3 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -120,24 +120,48 @@
       "integrity": "sha512-82EQzwrNauw1fkbUSr3f+50Bcq7g4h0XvLOk8C5e9ABkXYHei7ZPi9tiMMD7Vh3SfcdH97d1ibJ3KBWp2o1J+w=="
     },
     "@google-cloud/pubsub": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/@google-cloud/pubsub/-/pubsub-2.3.0.tgz",
-      "integrity": "sha512-lWFwuzg+d7UN7YY6TGwIFPxiA2pFFHx1ApN0X5xIe0jtuUuF2iPaRNIJwZTOnvZ8xmOSpQqiaj/SwEDgr4b46A==",
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/@google-cloud/pubsub/-/pubsub-2.5.0.tgz",
+      "integrity": "sha512-7bbbQqa+LSTopVjt20EZ8maO6rEpbO7v8EvDImHMsbRS30HJ5+kClbaQTRvhNzhc1qy221A1GbHPHMCQ/U5E3Q==",
       "requires": {
         "@google-cloud/paginator": "^3.0.0",
         "@google-cloud/precise-date": "^2.0.0",
         "@google-cloud/projectify": "^2.0.0",
         "@google-cloud/promisify": "^2.0.0",
+        "@opentelemetry/api": "^0.10.0",
+        "@opentelemetry/tracing": "^0.10.0",
         "@types/duplexify": "^3.6.0",
         "@types/long": "^4.0.0",
         "arrify": "^2.0.0",
         "extend": "^3.0.2",
         "google-auth-library": "^6.0.0",
-        "google-gax": "^2.1.0",
+        "google-gax": "^2.7.0",
         "is-stream-ended": "^0.1.4",
         "lodash.snakecase": "^4.1.1",
-        "p-defer": "^3.0.0",
-        "protobufjs": "^6.8.1"
+        "p-defer": "^3.0.0"
+      },
+      "dependencies": {
+        "google-gax": {
+          "version": "2.7.0",
+          "resolved": "https://registry.npmjs.org/google-gax/-/google-gax-2.7.0.tgz",
+          "integrity": "sha512-0dBATy8mMVlfOBrT85Q+NzBpZ4OJZUMrPI9wJULpiIDq2w1zlN30Duor+fQUcMEjanYEc72G58M4iUVve0jfXw==",
+          "requires": {
+            "@grpc/grpc-js": "~1.1.1",
+            "@grpc/proto-loader": "^0.5.1",
+            "@types/long": "^4.0.0",
+            "abort-controller": "^3.0.0",
+            "duplexify": "^3.6.0",
+            "google-auth-library": "^6.0.0",
+            "is-stream-ended": "^0.1.4",
+            "lodash.at": "^4.6.0",
+            "lodash.has": "^4.5.2",
+            "node-fetch": "^2.6.0",
+            "protobufjs": "^6.9.0",
+            "retry-request": "^4.0.0",
+            "semver": "^6.0.0",
+            "walkdir": "^0.4.0"
+          }
+        }
       }
     },
     "@google-cloud/storage": {
@@ -200,9 +224,9 @@
       "integrity": "sha512-y+OQBmex5D1jIl723gAEUYcAWPEicIXppaAKw/zCMfpllQ08ZNweDPwoCLxEoatqd5pCu2XG6V8dl67JRq3RJw=="
     },
     "@koa/router": {
-      "version": "9.3.1",
-      "resolved": "https://registry.npmjs.org/@koa/router/-/router-9.3.1.tgz",
-      "integrity": "sha512-OOy4pOEO+Zz5vy+zqc8mWRGKYIpDqjgbVTF/U41fCwBwVWHGmkedvcJ9V5MLI7Ivy0iTv8o0XLDtGWtYHquvxg==",
+      "version": "9.4.0",
+      "resolved": "https://registry.npmjs.org/@koa/router/-/router-9.4.0.tgz",
+      "integrity": "sha512-dOOXgzqaDoHu5qqMEPLKEgLz5CeIA7q8+1W62mCvFVCOqeC71UoTGJ4u1xUSOpIl2J1x2pqrNULkFteUeZW3/A==",
       "requires": {
         "debug": "^4.1.1",
         "http-errors": "^1.7.3",
@@ -317,6 +341,88 @@
         "read-package-json-fast": "^1.1.3"
       }
     },
+    "@opentelemetry/api": {
+      "version": "0.10.2",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/api/-/api-0.10.2.tgz",
+      "integrity": "sha512-GtpMGd6vkzDMYcpu2t9LlhEgMy/SzBwRnz48EejlRArYqZzqSzAsKmegUK7zHgl+EOIaK9mKHhnRaQu3qw20cA==",
+      "requires": {
+        "@opentelemetry/context-base": "^0.10.2"
+      }
+    },
+    "@opentelemetry/context-base": {
+      "version": "0.10.2",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/context-base/-/context-base-0.10.2.tgz",
+      "integrity": "sha512-hZNKjKOYsckoOEgBziGMnBcX0M7EtstnCmwz5jZUOUYwlZ+/xxX6z3jPu1XVO2Jivk0eLfuP9GP+vFD49CMetw=="
+    },
+    "@opentelemetry/core": {
+      "version": "0.10.2",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/core/-/core-0.10.2.tgz",
+      "integrity": "sha512-DhkiTp5eje2zTGd+HAIKWpGE6IR6lq7tUpYt4nnkhOi6Hq9WQAANVDCWEZEbYOw57LkdXbE50FZ/kMvHDm450Q==",
+      "requires": {
+        "@opentelemetry/api": "^0.10.2",
+        "@opentelemetry/context-base": "^0.10.2",
+        "semver": "^7.1.3"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "7.3.2",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.2.tgz",
+          "integrity": "sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ=="
+        }
+      }
+    },
+    "@opentelemetry/resources": {
+      "version": "0.10.2",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/resources/-/resources-0.10.2.tgz",
+      "integrity": "sha512-5JGC2TPSAIHth615IURt+sSsTljY43zTfJD0JE9PHC6ipZPiQ0dpQDZOrLn8NAMfOHY1jeWwpIuLASjqbXUfuw==",
+      "requires": {
+        "@opentelemetry/api": "^0.10.2",
+        "@opentelemetry/core": "^0.10.2",
+        "gcp-metadata": "^3.5.0"
+      },
+      "dependencies": {
+        "gaxios": {
+          "version": "2.3.4",
+          "resolved": "https://registry.npmjs.org/gaxios/-/gaxios-2.3.4.tgz",
+          "integrity": "sha512-US8UMj8C5pRnao3Zykc4AAVr+cffoNKRTg9Rsf2GiuZCW69vgJj38VK2PzlPuQU73FZ/nTk9/Av6/JGcE1N9vA==",
+          "requires": {
+            "abort-controller": "^3.0.0",
+            "extend": "^3.0.2",
+            "https-proxy-agent": "^5.0.0",
+            "is-stream": "^2.0.0",
+            "node-fetch": "^2.3.0"
+          }
+        },
+        "gcp-metadata": {
+          "version": "3.5.0",
+          "resolved": "https://registry.npmjs.org/gcp-metadata/-/gcp-metadata-3.5.0.tgz",
+          "integrity": "sha512-ZQf+DLZ5aKcRpLzYUyBS3yo3N0JSa82lNDO8rj3nMSlovLcz2riKFBsYgDzeXcv75oo5eqB2lx+B14UvPoCRnA==",
+          "requires": {
+            "gaxios": "^2.1.0",
+            "json-bigint": "^0.3.0"
+          }
+        },
+        "json-bigint": {
+          "version": "0.3.1",
+          "resolved": "https://registry.npmjs.org/json-bigint/-/json-bigint-0.3.1.tgz",
+          "integrity": "sha512-DGWnSzmusIreWlEupsUelHrhwmPPE+FiQvg+drKfk2p+bdEYa5mp4PJ8JsCWqae0M2jQNb0HPvnwvf1qOTThzQ==",
+          "requires": {
+            "bignumber.js": "^9.0.0"
+          }
+        }
+      }
+    },
+    "@opentelemetry/tracing": {
+      "version": "0.10.2",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/tracing/-/tracing-0.10.2.tgz",
+      "integrity": "sha512-mNAhARn4dEdOjTa9OdysjI4fRHMbvr4YSbPuH7jhkyPzgoa+DnvnbY3GGpEay6kpuYJsrW8Ef9OIKAV/GndhbQ==",
+      "requires": {
+        "@opentelemetry/api": "^0.10.2",
+        "@opentelemetry/context-base": "^0.10.2",
+        "@opentelemetry/core": "^0.10.2",
+        "@opentelemetry/resources": "^0.10.2"
+      }
+    },
     "@protobufjs/aspromise": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
@@ -611,9 +717,9 @@
       "dev": true
     },
     "@types/express": {
-      "version": "4.17.6",
-      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.6.tgz",
-      "integrity": "sha512-n/mr9tZI83kd4azlPG5y997C/M4DNABK9yErhFM6hKdym4kkmd9j0vtsJyjFIwfRBxtrxZtAfGZCNRIBMFLK5w==",
+      "version": "4.17.7",
+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.7.tgz",
+      "integrity": "sha512-dCOT5lcmV/uC2J9k0rPafATeeyz+99xTt54ReX11/LObZgfzJqZNcW27zGhYyX+9iSEGXGt5qLPwRSvBZcLvtQ==",
       "dev": true,
       "requires": {
         "@types/body-parser": "*",
@@ -623,12 +729,13 @@
       }
     },
     "@types/express-serve-static-core": {
-      "version": "4.17.5",
-      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.17.5.tgz",
-      "integrity": "sha512-578YH5Lt88AKoADy0b2jQGwJtrBxezXtVe/MBqWXKZpqx91SnC0pVkVCcxcytz3lWW+cHBYDi3Ysh0WXc+rAYw==",
+      "version": "4.17.9",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.17.9.tgz",
+      "integrity": "sha512-DG0BYg6yO+ePW+XoDENYz8zhNGC3jDDEpComMYn7WJc4mY1Us8Rw9ax2YhJXxpyk2SF47PQAoQ0YyVT1a0bEkA==",
       "dev": true,
       "requires": {
         "@types/node": "*",
+        "@types/qs": "*",
         "@types/range-parser": "*"
       }
     },
@@ -649,6 +756,12 @@
       "integrity": "sha512-PGAK759pxyfXE78NbKxyfRcWYA/KwW17X290cNev/qAsn9eQIxkH4shoNBafH37wewhDG/0p1cHPbK6+SzZjWQ==",
       "dev": true
     },
+    "@types/http-errors": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/@types/http-errors/-/http-errors-1.8.0.tgz",
+      "integrity": "sha512-2aoSC4UUbHDj2uCsCxcG/vRMXey/m17bC7UwitVm5hn22nI8O8Y9iDpA76Orc+DWkQ4zZrOKEshCqR/jSuXAHA==",
+      "dev": true
+    },
     "@types/ioredis": {
       "version": "4.17.3",
       "resolved": "https://registry.npmjs.org/@types/ioredis/-/ioredis-4.17.3.tgz",
@@ -677,15 +790,16 @@
       "dev": true
     },
     "@types/koa": {
-      "version": "2.11.3",
-      "resolved": "https://registry.npmjs.org/@types/koa/-/koa-2.11.3.tgz",
-      "integrity": "sha512-ABxVkrNWa4O/Jp24EYI/hRNqEVRlhB9g09p48neQp4m3xL1TJtdWk2NyNQSMCU45ejeELMQZBYyfstyVvO2H3Q==",
+      "version": "2.11.4",
+      "resolved": "https://registry.npmjs.org/@types/koa/-/koa-2.11.4.tgz",
+      "integrity": "sha512-Etqs0kdqbuAsNr5k6mlZQelpZKVwMu9WPRHVVTLnceZlhr0pYmblRNJbCgoCMzKWWePldydU0AYEOX4Q9fnGUQ==",
       "dev": true,
       "requires": {
         "@types/accepts": "*",
         "@types/content-disposition": "*",
         "@types/cookies": "*",
         "@types/http-assert": "*",
+        "@types/http-errors": "*",
         "@types/keygrip": "*",
         "@types/koa-compose": "*",
         "@types/node": "*"
@@ -758,9 +872,9 @@
       "dev": true
     },
     "@types/mime": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/@types/mime/-/mime-2.0.1.tgz",
-      "integrity": "sha512-FwI9gX75FgVBJ7ywgnq/P7tw+/o1GUbtP0KzbtusLigAOgIgNISRK0ZPl4qertvXSIE8YbsVJueQ90cDt9YYyw==",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/@types/mime/-/mime-2.0.3.tgz",
+      "integrity": "sha512-Jus9s4CDbqwocc5pOAnh8ShfrnMcPHuJYzVcSUU7lrh8Ni5HuIqX3oilL86p3dlTrk0LzHRCgA/GQ7uNCw6l2Q==",
       "dev": true
     },
     "@types/node": {
@@ -784,9 +898,9 @@
       }
     },
     "@types/qs": {
-      "version": "6.9.1",
-      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.1.tgz",
-      "integrity": "sha512-lhbQXx9HKZAPgBkISrBcmAcMpZsmpe/Cd/hY7LGZS5OfkySUBItnPZHgQPssWYUET8elF+yCFBbP1Q0RZPTdaw==",
+      "version": "6.9.4",
+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.4.tgz",
+      "integrity": "sha512-+wYo+L6ZF6BMoEjtf8zB2esQsqdV6WsjRK/GP9WOgLPrq87PbNWgIxS76dS5uvl/QXtHGakZmwTznIfcPXcKlQ==",
       "dev": true
     },
     "@types/range-parser": {
@@ -811,9 +925,9 @@
       }
     },
     "@types/serve-static": {
-      "version": "1.13.3",
-      "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.3.tgz",
-      "integrity": "sha512-oprSwp094zOglVrXdlo/4bAHtKTAxX6VT8FOZlBKrmyLbNvE1zxZyJ6yikMVtHIvwP45+ZQGJn+FdXGKTozq0g==",
+      "version": "1.13.5",
+      "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.5.tgz",
+      "integrity": "sha512-6M64P58N+OXjU432WoLLBQxbA0LRGBCRm7aAGQJ+SMC1IMl0dgRVi9EFfoDcS2a7Xogygk/eGN94CfwU9UF7UQ==",
       "dev": true,
       "requires": {
         "@types/express-serve-static-core": "*",
@@ -836,12 +950,12 @@
       "dev": true
     },
     "@typescript-eslint/eslint-plugin": {
-      "version": "3.9.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-3.9.0.tgz",
-      "integrity": "sha512-UD6b4p0/hSe1xdTvRCENSx7iQ+KR6ourlZFfYuPC7FlXEzdHuLPrEmuxZ23b2zW96KJX9Z3w05GE/wNOiEzrVg==",
+      "version": "3.9.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-3.9.1.tgz",
+      "integrity": "sha512-XIr+Mfv7i4paEdBf0JFdIl9/tVxyj+rlilWIfZ97Be0lZ7hPvUbS5iHt9Glc8kRI53dsr0PcAEudbf8rO2wGgg==",
       "dev": true,
       "requires": {
-        "@typescript-eslint/experimental-utils": "3.9.0",
+        "@typescript-eslint/experimental-utils": "3.9.1",
         "debug": "^4.1.1",
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-        "minizlib": "^2.1.0",
+        "minizlib": "^2.1.1",
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+          "resolved": "https://registry.npmjs.org/minizlib/-/minizlib-2.1.2.tgz",
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@@ -6323,9 +6434,9 @@
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-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.10.0.tgz",
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+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.10.1.tgz",
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@@ -6364,9 +6475,9 @@
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-      "resolved": "https://registry.npmjs.org/update-notifier/-/update-notifier-4.1.0.tgz",
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+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/update-notifier/-/update-notifier-4.1.1.tgz",
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diff --git a/package.json b/package.json
index dd8f3936..c0f26504 100644
--- a/package.json
+++ b/package.json
@@ -19,10 +19,10 @@
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     "@google-cloud/datastore": "^6.1.0",
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     "@koa/multer": "^3.0.0",
-    "@koa/router": "^9.3.1",
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@@ -41,11 +41,11 @@
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     "koa-static": "^5.0.0",
     "multer": "^1.4.2",
-    "npm-check-updates": "^7.1.0",
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     "printf": "^0.5.3",
     "qrcode": "^1.4.4",
-    "request-zero": "^0.2.7",
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@@ -61,7 +61,7 @@
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-    "@types/koa": "^2.11.3",
+    "@types/koa": "^2.11.4",
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     "@types/koa-static": "^4.0.1",
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@@ -70,20 +70,20 @@
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-    "@typescript-eslint/parser": "^3.9.0",
+    "@typescript-eslint/eslint-plugin": "^3.9.1",
+    "@typescript-eslint/parser": "^3.9.1",
     "builtin-modules": "^3.1.0",
-    "eslint": "^7.6.0",
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     "eslint-config-prettier": "^6.11.0",
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-    "eslint-import-resolver-typescript": "^2.2.0",
+    "eslint-import-resolver-typescript": "^2.2.1",
     "eslint-plugin-import": "^2.22.0",
     "eslint-plugin-json": "^2.1.2",
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     "prettier": "^2.0.5",
-    "rollup": "^2.23.1",
-    "rollup-plugin-minify-html-literals": "^1.2.4",
+    "rollup": "^2.26.4",
+    "rollup-plugin-minify-html-literals": "^1.2.5",
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diff --git a/run/package-lock.json b/run/package-lock.json
index b784b963..e49ae6d2 100644
--- a/run/package-lock.json
+++ b/run/package-lock.json
@@ -41,6 +41,36 @@
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       }
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+    "@mapbox/jsonlint-lines-primitives": {
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+      "resolved": "https://registry.npmjs.org/@mapbox/jsonlint-lines-primitives/-/jsonlint-lines-primitives-2.0.2.tgz",
+      "integrity": "sha1-zlblOfg1UrWNENZy6k1vya3HsjQ="
+    },
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+      "resolved": "https://registry.npmjs.org/@mapbox/mapbox-gl-style-spec/-/mapbox-gl-style-spec-13.16.0.tgz",
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+      "requires": {
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+        "@mapbox/point-geometry": "^0.1.0",
+        "@mapbox/unitbezier": "^0.0.0",
+        "csscolorparser": "~1.0.2",
+        "json-stringify-pretty-compact": "^2.0.0",
+        "minimist": "^1.2.5",
+        "rw": "^1.3.3",
+        "sort-object": "^0.3.2"
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+      "resolved": "https://registry.npmjs.org/@mapbox/point-geometry/-/point-geometry-0.1.0.tgz",
+      "integrity": "sha1-ioP5M1x4YO/6Lu7KJUMyqgru2PI="
+    },
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+      "version": "0.0.0",
+      "resolved": "https://registry.npmjs.org/@mapbox/unitbezier/-/unitbezier-0.0.0.tgz",
+      "integrity": "sha1-FWUb1VOme4WB+zmIEMmK2Go0Uk4="
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@@ -95,6 +125,18 @@
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       "integrity": "sha1-p3c2C1s5oaLlEG+OhY8v0tBgxXA="
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+    "@types/arcgis-rest-api": {
+      "version": "10.4.4",
+      "resolved": "https://registry.npmjs.org/@types/arcgis-rest-api/-/arcgis-rest-api-10.4.4.tgz",
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+      "dev": true
+    },
+    "@types/geojson": {
+      "version": "7946.0.7",
+      "resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-7946.0.7.tgz",
+      "integrity": "sha512-wE2v81i4C4Ol09RtsWFAqg3BUitWbHSpSlIo+bNdsCJijO9sjme+zm+73ZMCa/qMC8UEERxzGbvmr1cffo2SiQ==",
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+    },
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+    "@types/ol": {
+      "version": "6.3.1",
+      "resolved": "https://registry.npmjs.org/@types/ol/-/ol-6.3.1.tgz",
+      "integrity": "sha512-EfScx11HU/aCha+hU8jo+34BuTDIBIwOHFGjwGYEPfMh7FbYlKLMDcWjn6RM2w4eRnOmQXHqDfL8uObyJs1EmQ==",
+      "dev": true,
+      "requires": {
+        "@types/arcgis-rest-api": "*",
+        "@types/geojson": "*",
+        "@types/topojson-specification": "*"
+      }
+    },
+    "@types/topojson-specification": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@types/topojson-specification/-/topojson-specification-1.0.1.tgz",
+      "integrity": "sha512-ZZYZUgkmUls9Uhxx2WZNt9f/h2+H3abUUjOVmq+AaaDFckC5oAwd+MDp95kBirk+XCXrYj0hfpI6DSUiJMrpYQ==",
+      "dev": true,
+      "requires": {
+        "@types/geojson": "*"
+      }
+    },
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@@ -260,6 +322,11 @@
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       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "csscolorparser": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/csscolorparser/-/csscolorparser-1.0.3.tgz",
+      "integrity": "sha1-s085HupNqPPpgjHizNjfnAQfFxs="
+    },
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@@ -509,6 +576,11 @@
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+    "ieee754": {
+      "version": "1.1.13",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",
+      "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg=="
+    },
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       "resolved": "https://registry.npmjs.org/inflation/-/inflation-2.0.0.tgz",
@@ -583,6 +655,11 @@
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/json-stringify-pretty-compact/-/json-stringify-pretty-compact-2.0.0.tgz",
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@@ -738,6 +815,11 @@
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+    "mapbox-to-css-font": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/mapbox-to-css-font/-/mapbox-to-css-font-2.4.0.tgz",
+      "integrity": "sha512-v674D0WtpxCXlA6E+sBlG1QJWdUkz/s9qAD91bJSXBGuBL5lL4tJXpoJEftecphCh2SVQCjWMS2vhylc3AIQTg=="
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@@ -766,6 +848,11 @@
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+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
+    },
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       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -786,6 +873,26 @@
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+    "ol": {
+      "version": "6.4.0",
+      "resolved": "https://registry.npmjs.org/ol/-/ol-6.4.0.tgz",
+      "integrity": "sha512-eZv9kwxpwF2YsOoBKPlyp8BtxHGDGL+cQqzrpirQzHFZnwKomSVWF4Xbr7llreJDvyd63SKqrQS9cAxy9jrkKQ==",
+      "requires": {
+        "ol-mapbox-style": "^6.1.1",
+        "pbf": "3.2.1",
+        "rbush": "^3.0.1"
+      }
+    },
+    "ol-mapbox-style": {
+      "version": "6.1.2",
+      "resolved": "https://registry.npmjs.org/ol-mapbox-style/-/ol-mapbox-style-6.1.2.tgz",
+      "integrity": "sha512-0n+6K1dhMH7/AMA1eAEb1Pt4ZRFWr1fiJWSgwHfDFQpK4yuhJgtLcn9dtxprB1NOpTHeJ5XbTKOrgTY/DR0oxQ==",
+      "requires": {
+        "@mapbox/mapbox-gl-style-spec": "^13.14.0",
+        "mapbox-to-css-font": "^2.4.0",
+        "webfont-matcher": "^1.1.0"
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       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
@@ -822,6 +929,15 @@
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+    "pbf": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/pbf/-/pbf-3.2.1.tgz",
+      "integrity": "sha512-ClrV7pNOn7rtmoQVF4TS1vyU0WhYRnP92fzbfF75jAIwpnzdJXf8iTd4CMEqO4yUenH6NDqLiwjqlh6QgZzgLQ==",
+      "requires": {
+        "ieee754": "^1.1.12",
+        "resolve-protobuf-schema": "^2.1.0"
+      }
+    },
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@@ -847,11 +963,21 @@
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+    "protocol-buffers-schema": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/protocol-buffers-schema/-/protocol-buffers-schema-3.4.0.tgz",
+      "integrity": "sha512-G/2kcamPF2S49W5yaMGdIpkG6+5wZF0fzBteLKgEHjbNzqjZQ85aAs1iJGto31EJaSTkNvHs5IXuHSaTLWBAiA=="
+    },
     "qs": {
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       "resolved": "https://registry.npmjs.org/qs/-/qs-6.9.4.tgz",
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+    "quickselect": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/quickselect/-/quickselect-2.0.0.tgz",
+      "integrity": "sha512-RKJ22hX8mHe3Y6wH/N3wCM6BWtjaxIyyUIkpHOvfFnxdI4yD4tBXEBKSbriGujF6jnSVkJrffuo6vxACiSSxIw=="
+    },
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@@ -863,6 +989,14 @@
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+    "rbush": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/rbush/-/rbush-3.0.1.tgz",
+      "integrity": "sha512-XRaVO0YecOpEuIvbhbpTrZgoiI6xBlz6hnlr6EHhd+0x9ase6EmeN+hdwwUaJvLcsFFQ8iWVF1GAK1yB0BWi0w==",
+      "requires": {
+        "quickselect": "^2.0.0"
+      }
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       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
@@ -896,6 +1030,14 @@
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+    "resolve-protobuf-schema": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/resolve-protobuf-schema/-/resolve-protobuf-schema-2.1.0.tgz",
+      "integrity": "sha512-kI5ffTiZWmJaS/huM8wZfEMer1eRd7oJQhDuxeCLe3t7N7mX3z94CN0xPxBQxFYQTSNz9T0i+v6inKqSdK8xrQ==",
+      "requires": {
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+      }
+    },
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       "resolved": "https://registry.npmjs.org/retry-request/-/retry-request-4.1.1.tgz",
@@ -914,6 +1056,11 @@
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+      "resolved": "https://registry.npmjs.org/rw/-/rw-1.3.3.tgz",
+      "integrity": "sha1-P4Yt+pGrdmsUiF700BEkv9oHT7Q="
+    },
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       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
@@ -939,6 +1086,25 @@
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+    "sort-asc": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/sort-asc/-/sort-asc-0.1.0.tgz",
+      "integrity": "sha1-q3md9h/HPqCVbHnEtTHtHp53J+k="
+    },
+    "sort-desc": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/sort-desc/-/sort-desc-0.1.1.tgz",
+      "integrity": "sha1-GYuMDN6wlcRjNBhh45JdTuNZqe4="
+    },
+    "sort-object": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/sort-object/-/sort-object-0.3.2.tgz",
+      "integrity": "sha1-mODRme3kDgfGGoRAPGHWw7KQ+eI=",
+      "requires": {
+        "sort-asc": "^0.1.0",
+        "sort-desc": "^0.1.1"
+      }
+    },
     "split-array-stream": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/split-array-stream/-/split-array-stream-2.0.0.tgz",
@@ -1036,6 +1202,11 @@
       "resolved": "https://registry.npmjs.org/walkdir/-/walkdir-0.4.1.tgz",
       "integrity": "sha512-3eBwRyEln6E1MSzcxcVpQIhRG8Q1jLvEqRmCZqS3dsfXEDR/AhOF4d+jHg1qvDCpYaVRZjENPQyrVxAkQqxPgQ=="
     },
+    "webfont-matcher": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/webfont-matcher/-/webfont-matcher-1.1.0.tgz",
+      "integrity": "sha1-mM6VCXsp4x++czBT4Q5XFkLRxsc="
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
diff --git a/run/package.json b/run/package.json
index 0952b7f6..c2587005 100644
--- a/run/package.json
+++ b/run/package.json
@@ -23,6 +23,10 @@
     "koa-router": "^9.1.0",
     "request-zero": "^0.2.7",
     "rss-parser": "^3.9.0",
+    "ol": "^6.4.0",
     "xmldom": "^0.3.0"
+  },
+  "devDependencies": {
+    "@types/ol": "^6.3.1"
   }
 }
diff --git a/run/src/server.ts b/run/src/server.ts
index d07a71e0..3fc5844d 100644
--- a/run/src/server.ts
+++ b/run/src/server.ts
@@ -11,8 +11,9 @@ import Router, { RouterContext } from '@koa/router';
 
 import { Keys } from '../../app/src/keys';
 import { postProcessTrack } from './process/process';
-import { refresh as refreshInreach } from './trackers/inreach';
-import { refresh as refreshSpot } from './trackers/spot';
+import * as inreach from './trackers/inreach';
+import * as skylines from './trackers/skylines';
+import * as spot from './trackers/spot';
 import { REFRESH_MAX_HOURS, REFRESH_TIMEOUT_SECONDS } from './trackers/trackers';
 
 const app = new Koa();
@@ -25,8 +26,9 @@ router.post('/refresh', async (ctx: RouterContext) => {
   const request = Number(await redis.get('trackers.request'));
   if (request > Date.now() - 10 * 60 * 1000) {
     // Refresh the trackers
-    numRefreshed += await refreshInreach(datastore, REFRESH_MAX_HOURS, REFRESH_TIMEOUT_SECONDS);
-    numRefreshed += await refreshSpot(datastore, REFRESH_MAX_HOURS, REFRESH_TIMEOUT_SECONDS);
+    numRefreshed += await inreach.refresh(datastore, REFRESH_MAX_HOURS, REFRESH_TIMEOUT_SECONDS);
+    numRefreshed += await spot.refresh(datastore, REFRESH_MAX_HOURS, REFRESH_TIMEOUT_SECONDS);
+    numRefreshed += await skylines.refresh(datastore, REFRESH_MAX_HOURS, REFRESH_TIMEOUT_SECONDS);
     // Merge the tracks for all the trackers that have been updated less than 20 minutes ago.
     // The resulting GeoJSON is stored in Redis to be read by the flyxc server.
     const query = datastore.createQuery('Tracker').filter('updated', '>', Date.now() - 20 * 60 * 1000);
diff --git a/run/src/trackers/skylines.ts b/run/src/trackers/skylines.ts
new file mode 100644
index 00000000..666cf6c3
--- /dev/null
+++ b/run/src/trackers/skylines.ts
@@ -0,0 +1,102 @@
+// Skylines API.
+
+/* eslint-disable @typescript-eslint/no-var-requires */
+const request = require('request-zero');
+/* eslint-enable @typescript-eslint/no-var-requires */
+
+import { decodeDeltas } from 'ol/format/Polyline';
+
+import { createFeatures, Point, REFRESH_EVERY_MINUTES } from './trackers';
+
+const SECONDS_IN_DAY = 60 * 60 * 24;
+
+// Queries the datastore for the devices that have not been updated in REFRESH_EVERY_MINUTES.
+// Queries the skylines API until the timeout is reached and store the data back into the datastore.
+export async function refresh(datastore: any, hour: number, timeoutSecs: number): Promise<number> {
+  const start = Date.now();
+
+  const query = datastore
+    .createQuery('Tracker')
+    .filter('device', '=', 'skylines')
+    .filter('updated', '<', start - REFRESH_EVERY_MINUTES * 60 * 1000)
+    .order('updated', { descending: true });
+
+  const devices = (await datastore.runQuery(query))[0];
+
+  let numDevices = 0;
+  const numActiveDevices = 0;
+
+  for (; numDevices < devices.length; numDevices++) {
+    const points: Point[] = [];
+    const device = devices[numDevices];
+    const id: string = device.skylines;
+    if (/^\d+$/i.test(id)) {
+      const url = `https://skylines.aero/api/live/${id}`;
+      const response = await request(url);
+      if (response.code == 200) {
+        console.log(`Refreshing skylines @ ${id}`);
+        const live = JSON.parse(response.body);
+
+        const flight = live.flights[0];
+
+        if (flight == null) {
+          // no recent flight.
+          continue;
+        }
+
+        const time = decodeDeltas(flight.barogram_t, 1, 1);
+        const lonlat = decodeDeltas(flight.points, 2);
+        const height = decodeDeltas(flight.barogram_h, 1, 1);
+        const geoid = flight.geoid ?? 0;
+        const name = live?.pilots[0]?.name ?? 'unknown';
+
+        // startSeconds reference is a number of seconds since midnight UTC the day the track started.
+        const startSeconds = time[0];
+        // startDaySeconds is the number of seconds since previous midnight UTC.
+        const startDaySeconds = time[0] % SECONDS_IN_DAY;
+        // Current timestamp in seconds.
+        const nowSeconds = Math.ceil(Date.now() / 1000);
+        // Number of seconds since midnight UTC.
+        const daySeconds = nowSeconds % SECONDS_IN_DAY;
+        const startedOnPreviousDay = startDaySeconds > daySeconds;
+        // Timestamp of the first fix.
+        // Start of the current day - 24h if the track was started on the previous day + seconds in day of the first fix.
+        const startTimestampSeconds =
+          nowSeconds - daySeconds - (startedOnPreviousDay ? SECONDS_IN_DAY : 0) + startDaySeconds;
+
+        time.forEach((seconds: number, i: number) => {
+          const tsSeconds = startTimestampSeconds + seconds - startSeconds;
+          if (nowSeconds - tsSeconds <= hour * 3600) {
+            points.push({
+              ts: tsSeconds * 1000,
+              lat: lonlat[i * 2],
+              lon: lonlat[i * 2 + 1],
+              alt: Math.round(height[i] + geoid),
+              name,
+              emergency: false,
+            });
+          }
+        });
+      } else {
+        console.log(`Error refreshing skylines @ ${id}`);
+      }
+    }
+
+    device.features = JSON.stringify(createFeatures(points));
+    device.updated = Date.now();
+    device.active = points.length > 0;
+
+    datastore.save({
+      key: device[datastore.KEY],
+      data: device,
+      excludeFromIndexes: ['features'],
+    });
+
+    if (Date.now() - start > timeoutSecs * 1000) {
+      console.error(`Timeout for skylines devices (${timeoutSecs}s)`);
+      break;
+    }
+  }
+  console.log(`Refreshed ${numDevices} skylines in ${(Date.now() - start) / 1000}s`);
+  return numActiveDevices;
+}