diff --git a/website/src/lib/components/Logo.svelte b/website/src/lib/components/Logo.svelte
index 77f47ea2a..e6ef15573 100644
--- a/website/src/lib/components/Logo.svelte
+++ b/website/src/lib/components/Logo.svelte
@@ -9,7 +9,7 @@
     }: {
         iconOnly?: boolean;
         company?: 'gpx.studio' | 'github' | 'crowdin' | 'facebook' | 'reddit';
-        [key: string]: any;
+        [key: string]: unknown;
     } = $props();
 </script>
 
diff --git a/website/src/lib/components/map/gpx-layer/gpx-layer.ts b/website/src/lib/components/map/gpx-layer/gpx-layer.ts
index 5c143a925..1e0c3d302 100644
--- a/website/src/lib/components/map/gpx-layer/gpx-layer.ts
+++ b/website/src/lib/components/map/gpx-layer/gpx-layer.ts
@@ -66,9 +66,9 @@ export class GPXLayer {
     unsubscribe: (() => void)[] = [];
 
     updateBinded: () => void = this.update.bind(this);
-    layerOnMouseEnterBinded: (e: any) => void = this.layerOnMouseEnter.bind(this);
+    layerOnMouseEnterBinded: (e: MapLayerMouseEvent) => void = this.layerOnMouseEnter.bind(this);
     layerOnMouseLeaveBinded: () => void = this.layerOnMouseLeave.bind(this);
-    layerOnMouseMoveBinded: (e: any) => void = this.layerOnMouseMove.bind(this);
+    layerOnMouseMoveBinded: (e: MapLayerMouseEvent) => void = this.layerOnMouseMove.bind(this);
     layerOnClickBinded: (e: MapLayerMouseEvent) => void = this.layerOnClick.bind(this);
     layerOnContextMenuBinded: (e: MapLayerMouseEvent) => void = this.layerOnContextMenu.bind(this);
     waypointLayerOnMouseEnterBinded: (e: MapLayerMouseEvent) => void =
@@ -386,10 +386,10 @@ export class GPXLayer {
         }
     }
 
-    layerOnMouseEnter(e: any) {
+    layerOnMouseEnter(e: MapLayerMouseEvent) {
         if (
             get(currentTool) === Tool.SCISSORS &&
-            isCovered(this.selectionState, this.segmentNode(e.features[0].properties))
+            isCovered(this.selectionState, this.segmentNode(e.features![0].properties))
         ) {
             mapCursor.notify(MapCursorState.SCISSORS, true);
         } else {
@@ -402,9 +402,9 @@ export class GPXLayer {
         mapCursor.notify(MapCursorState.LAYER_HOVER, false);
     }
 
-    async layerOnMouseMove(e: any) {
+    async layerOnMouseMove(e: MapLayerMouseEvent) {
         if (e.originalEvent.shiftKey) {
-            const { segmentId } = e.features[0].properties;
+            const { segmentId } = e.features![0].properties;
             const lngLat = { lng: e.lngLat.lng, lat: e.lngLat.lat };
             const index = closestPointIndex(await engine.segmentCoordinates(segmentId), lngLat);
             const trackpoint =
@@ -469,7 +469,7 @@ export class GPXLayer {
         }
     }
 
-    layerOnContextMenu(e: any) {
+    layerOnContextMenu(e: MapLayerMouseEvent) {
         if (e.originalEvent.ctrlKey) {
             this.layerOnClick(e);
         }
diff --git a/website/src/lib/components/map/layer-control/CustomLayers.svelte b/website/src/lib/components/map/layer-control/CustomLayers.svelte
index 3eec6927b..d9bb06329 100644
--- a/website/src/lib/components/map/layer-control/CustomLayers.svelte
+++ b/website/src/lib/components/map/layer-control/CustomLayers.svelte
@@ -182,7 +182,7 @@
         }
     }
 
-    function tryDeleteLayer(node: any, id: string): any {
+    function tryDeleteLayer<T>(node: Record<string, T>, id: string): Record<string, T> {
         if (Object.hasOwn(node, id)) {
             delete node[id];
         }
diff --git a/website/src/lib/components/map/layer-control/overpass-layer.ts b/website/src/lib/components/map/layer-control/overpass-layer.ts
index 727c09dda..c6c339dcb 100644
--- a/website/src/lib/components/map/layer-control/overpass-layer.ts
+++ b/website/src/lib/components/map/layer-control/overpass-layer.ts
@@ -4,7 +4,7 @@ import { get, writable } from 'svelte/store';
 import { overpassQueryData } from '$lib/data/layers';
 import { MapPopup } from '$lib/components/map/map-popup';
 import { settings } from '$lib/state/settings';
-import type { GeoJSONSource, Map as MapLibreMap } from 'maplibre-gl';
+import type { GeoJSONSource, MapLayerMouseEvent, Map as MapLibreMap } from 'maplibre-gl';
 import { ANCHOR_LAYER_KEY } from '$lib/components/map/style';
 import type { MapLayerEventManager } from '$lib/components/map/map-layer-event-manager';
 import { loadSVGIcon } from '$lib/utils';
@@ -140,12 +140,12 @@ export class OverpassLayer {
         }
     }
 
-    onHover(e: any) {
+    onHover(e: MapLayerMouseEvent) {
         this.popup.setItem({
             kind: 'overpass',
             item: {
-                ...e.features[0].properties,
-                sym: overpassQueryData[e.features[0].properties.query].symbol ?? '',
+                ...e.features![0].properties,
+                sym: overpassQueryData[e.features![0].properties.query].symbol ?? '',
             },
         });
     }
diff --git a/website/src/lib/components/toolbar/tools/Clean.svelte b/website/src/lib/components/toolbar/tools/Clean.svelte
index da333e2a2..4f539ec36 100644
--- a/website/src/lib/components/toolbar/tools/Clean.svelte
+++ b/website/src/lib/components/toolbar/tools/Clean.svelte
@@ -16,7 +16,7 @@
     import { getURLForLanguage } from '$lib/utils';
     import { Trash2 } from '@lucide/svelte';
     import { map } from '$lib/components/map/map';
-    import type { GeoJSONSource, LngLat } from 'maplibre-gl';
+    import type { GeoJSONSource, LngLat, MapMouseEvent, MapTouchEvent } from 'maplibre-gl';
     import { engine } from '$lib/engine';
     import { mapCursor, MapCursorState } from '$lib/state/map-cursor';
     import { ANCHOR_LAYER_KEY } from '$lib/components/map/style';
@@ -81,12 +81,12 @@
     });
 
     let mousedown = false;
-    function onMouseDown(e: any) {
+    function onMouseDown(e: MapMouseEvent | MapTouchEvent) {
         mousedown = true;
         rectangleCoordinates = [e.lngLat, e.lngLat];
     }
 
-    function onMouseMove(e: any) {
+    function onMouseMove(e: MapMouseEvent | MapTouchEvent) {
         if (mousedown) {
             rectangleCoordinates[1] = e.lngLat;
         }
diff --git a/website/src/lib/components/toolbar/tools/routing/Routing.svelte b/website/src/lib/components/toolbar/tools/routing/Routing.svelte
index a5de58aee..71ae16ad0 100644
--- a/website/src/lib/components/toolbar/tools/routing/Routing.svelte
+++ b/website/src/lib/components/toolbar/tools/routing/Routing.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-    import type { Popup } from 'maplibre-gl';
+    import type { MapMouseEvent, Popup } from 'maplibre-gl';
     import * as Select from '$lib/components/ui/select';
     import { Switch } from '$lib/components/ui/switch';
     import { Label } from '$lib/components/ui/label/index.js';
@@ -58,7 +58,7 @@
     // the tool works on files, routes, tracks and segments, not on waypoints
     let validSelection = $derived(coversSegments($selection));
 
-    function createFileWithPoint(e: any) {
+    function createFileWithPoint(e: MapMouseEvent) {
         if ($selection.type === 'empty') {
             // the engine selects the new file, which starts with the trackpoint: one undo step
             engine.newFile(newFileName(), { lng: e.lngLat.lng, lat: e.lngLat.lat });
diff --git a/website/src/lib/components/toolbar/tools/routing/routing-controls.ts b/website/src/lib/components/toolbar/tools/routing/routing-controls.ts
index 656717fda..3acebbb1a 100644
--- a/website/src/lib/components/toolbar/tools/routing/routing-controls.ts
+++ b/website/src/lib/components/toolbar/tools/routing/routing-controls.ts
@@ -556,8 +556,9 @@ export class RoutingControls {
         let response;
         try {
             response = await route(targets);
-        } catch (e: any) {
-            toast.error(i18n._(e.message, e.message));
+        } catch (e) {
+            const message = e instanceof Error ? e.message : String(e);
+            toast.error(i18n._(message, message));
             return false;
         }
 
@@ -802,7 +803,7 @@ export class RoutingControls {
         this.moveAnchorFeature(this.anchorWithId(this.anchors.length)!, position);
     }
 
-    temporaryAnchorCloseToOtherAnchor(e: any) {
+    temporaryAnchorCloseToOtherAnchor(e: MapMouseEvent) {
         const map_ = get(map);
         if (!map_) {
             return false;
diff --git a/website/src/lib/components/toolbar/tools/scissors/split-controls.ts b/website/src/lib/components/toolbar/tools/scissors/split-controls.ts
index 605904b44..f31578fd4 100644
--- a/website/src/lib/components/toolbar/tools/scissors/split-controls.ts
+++ b/website/src/lib/components/toolbar/tools/scissors/split-controls.ts
@@ -29,9 +29,9 @@ export class SplitControls {
     selection: Selection = { type: 'empty' };
     statistics: SelectionStatistics | undefined = undefined;
 
-    layerOnMouseEnterBinded: (e: any) => void = this.layerOnMouseEnter.bind(this);
+    layerOnMouseEnterBinded: () => void = this.layerOnMouseEnter.bind(this);
     layerOnMouseLeaveBinded: () => void = this.layerOnMouseLeave.bind(this);
-    layerOnClickBinded: (e: any) => void = this.layerOnClick.bind(this);
+    layerOnClickBinded: (e: MapLayerMouseEvent) => void = this.layerOnClick.bind(this);
 
     constructor(map: Map, layerEventManager: MapLayerEventManager) {
         this.map = map;
diff --git a/website/src/lib/components/toolbar/tools/waypoint/Waypoint.svelte b/website/src/lib/components/toolbar/tools/waypoint/Waypoint.svelte
index c302dfd8e..249ba14c8 100644
--- a/website/src/lib/components/toolbar/tools/waypoint/Waypoint.svelte
+++ b/website/src/lib/components/toolbar/tools/waypoint/Waypoint.svelte
@@ -16,7 +16,7 @@
     import { selectedWaypoint } from './waypoint';
     import { map } from '$lib/components/map/map';
     import { mapCursor, MapCursorState } from '$lib/state/map-cursor';
-    import { Marker } from 'maplibre-gl';
+    import { Marker, type MapMouseEvent } from 'maplibre-gl';
     import { getSvgForSymbol } from '$lib/components/map/gpx-layer/gpx-layer';
 
     let props: {
@@ -108,7 +108,7 @@
         reset();
     }
 
-    function setCoordinates(e: any) {
+    function setCoordinates(e: MapMouseEvent) {
         if (
             $map?.queryRenderedFeatures(e.point, {
                 layers: $map.getLayersOrder().filter((layerId) => layerId.endsWith('-waypoints')),
@@ -117,8 +117,8 @@
             // Clicked on a waypoint, ignoring
             return;
         }
-        latitude = e.lngLat.lat.toFixed(6);
-        longitude = e.lngLat.lng.toFixed(6);
+        latitude = parseFloat(e.lngLat.lat.toFixed(6));
+        longitude = parseFloat(e.lngLat.lng.toFixed(6));
     }
 
     $effect(() => {
diff --git a/website/src/lib/state/settings.ts b/website/src/lib/state/settings.ts
index 15d620a9b..7904dc778 100644
--- a/website/src/lib/state/settings.ts
+++ b/website/src/lib/state/settings.ts
@@ -165,16 +165,14 @@ export const settings = {
     ),
     /** Takes the saved values (see `Engine.openStorage`). */
     connect(stored: StoredSettings) {
-        for (const key in settings) {
-            const setting = (settings as any)[key];
+        for (const setting of Object.values(settings)) {
             if (setting instanceof Setting || setting instanceof SettingInitOnFirstRead) {
                 setting.connect(stored);
             }
         }
     },
     initialize() {
-        for (const key in settings) {
-            const setting = (settings as any)[key];
+        for (const setting of Object.values(settings)) {
             if (setting instanceof SettingInitOnFirstRead) {
                 setting.initialize();
             }