diff --git a/frontend/src/components/Map/index.tsx b/frontend/src/components/Map/index.tsx
index 0fc3155..fd4440a 100644
--- a/frontend/src/components/Map/index.tsx
+++ b/frontend/src/components/Map/index.tsx
@@ -1,54 +1,61 @@
-import React, {useState, useCallback, useMemo, useEffect} from 'react'
-import classnames from 'classnames'
-import {connect} from 'react-redux'
-import _ from 'lodash'
-import ReactMapGl, {WebMercatorViewport, ScaleControl, NavigationControl} from 'react-map-gl'
-import turfBbox from '@turf/bbox'
-import {useHistory, useLocation} from 'react-router-dom'
+import React, { useState, useCallback, useMemo, useEffect } from "react";
+import classnames from "classnames";
+import { connect } from "react-redux";
+import _ from "lodash";
+import ReactMapGl, {
+  WebMercatorViewport,
+  ScaleControl,
+  NavigationControl,
+} from "react-map-gl";
+import turfBbox from "@turf/bbox";
+import { useHistory, useLocation } from "react-router-dom";
 
-import {useConfig} from 'config'
+import { useConfig } from "config";
 
-import {baseMapStyles} from '../../mapstyles'
+import { useCallbackRef } from "../../utils";
+import { baseMapStyles } from "../../mapstyles";
 
-import styles from './styles.module.less'
+import styles from "./styles.module.less";
 
 interface Viewport {
-  longitude: number
-  latitude: number
-  zoom: number
+  longitude: number;
+  latitude: number;
+  zoom: number;
 }
-const EMPTY_VIEWPORT: Viewport = {longitude: 0, latitude: 0, zoom: 0}
+const EMPTY_VIEWPORT: Viewport = { longitude: 0, latitude: 0, zoom: 0 };
 
-export const withBaseMapStyle = connect((state) => ({baseMapStyle: state.mapConfig?.baseMap?.style ?? 'positron'}))
+export const withBaseMapStyle = connect((state) => ({
+  baseMapStyle: state.mapConfig?.baseMap?.style ?? "positron",
+}));
 
 function parseHash(v: string): Viewport | null {
-  if (!v) return null
-  const m = v.match(/^#([0-9\.]+)\/([0-9\.]+)\/([0-9\.]+)$/)
-  if (!m) return null
+  if (!v) return null;
+  const m = v.match(/^#([0-9\.]+)\/([0-9\.]+)\/([0-9\.]+)$/);
+  if (!m) return null;
   return {
     zoom: Number.parseFloat(m[1]),
     latitude: Number.parseFloat(m[2]),
     longitude: Number.parseFloat(m[3]),
-  }
+  };
 }
 
 function buildHash(v: Viewport): string {
-  return `${v.zoom.toFixed(2)}/${v.latitude}/${v.longitude}`
+  return `${v.zoom.toFixed(2)}/${v.latitude}/${v.longitude}`;
 }
 
 function useViewportFromUrl(): [Viewport | null, (v: Viewport) => void] {
-  const history = useHistory()
-  const location = useLocation()
-  const value = useMemo(() => parseHash(location.hash), [location.hash])
+  const history = useHistory();
+  const location = useLocation();
+  const value = useMemo(() => parseHash(location.hash), [location.hash]);
   const setter = useCallback(
     (v) => {
       history.replace({
         hash: buildHash(v),
-      })
+      });
     },
     [history]
-  )
-  return [value || EMPTY_VIEWPORT, setter]
+  );
+  return [value || EMPTY_VIEWPORT, setter];
 }
 
 function Map({
@@ -58,29 +65,58 @@ function Map({
   baseMapStyle,
   ...props
 }: {
-  viewportFromUrl?: boolean
-  children: React.ReactNode
-  boundsFromJson: GeoJSON.Geometry
-  baseMapStyle: string
+  viewportFromUrl?: boolean;
+  children: React.ReactNode;
+  boundsFromJson: GeoJSON.Geometry;
+  baseMapStyle: string;
 }) {
-  const [viewportState, setViewportState] = useState(EMPTY_VIEWPORT)
-  const [viewportUrl, setViewportUrl] = useViewportFromUrl()
+  const [viewportState, setViewportState] = useState(EMPTY_VIEWPORT);
+  const [viewportUrl, setViewportUrl] = useViewportFromUrl();
 
-  const [viewport, setViewport] = viewportFromUrl ? [viewportUrl, setViewportUrl] : [viewportState, setViewportState]
+  const [viewport, setViewport] = viewportFromUrl
+    ? [viewportUrl, setViewportUrl]
+    : [viewportState, setViewportState];
 
-  const config = useConfig()
+  const config = useConfig();
   useEffect(() => {
-    if (config?.mapHome && viewport?.latitude === 0 && viewport?.longitude === 0 && !boundsFromJson) {
-      setViewport(config.mapHome)
+    if (
+      config?.mapHome &&
+      viewport?.latitude === 0 &&
+      viewport?.longitude === 0 &&
+      !boundsFromJson
+    ) {
+      setViewport(config.mapHome);
     }
-  }, [config, boundsFromJson])
+  }, [config, boundsFromJson]);
+
+  const mapSourceHosts = useMemo(
+    () =>
+      _.uniq(
+        config?.obsMapSource?.tiles?.map(
+          (tileUrl: string) => new URL(tileUrl).host
+        ) ?? []
+      ),
+    [config?.obsMapSource]
+  );
+
+  const transformRequest = useCallbackRef((url, resourceType) => {
+    if (resourceType === "Tile" && mapSourceHosts.includes(new URL(url).host)) {
+      return {
+        url,
+        credentials: "include",
+      };
+    }
+  });
 
   useEffect(() => {
     if (boundsFromJson) {
       const bbox = turfBbox(boundsFromJson);
-      if (bbox.every(v => Math.abs(v) !== Infinity)) {
+      if (bbox.every((v) => Math.abs(v) !== Infinity)) {
         const [minX, minY, maxX, maxY] = bbox;
-        const vp = new WebMercatorViewport({width: 1000, height: 800}).fitBounds(
+        const vp = new WebMercatorViewport({
+          width: 1000,
+          height: 800,
+        }).fitBounds(
           [
             [minX, minY],
             [maxX, maxY],
@@ -89,11 +125,11 @@ function Map({
             padding: 20,
             offset: [0, -100],
           }
-        )
-        setViewport(_.pick(vp, ['zoom', 'latitude', 'longitude']))
+        );
+        setViewport(_.pick(vp, ["zoom", "latitude", "longitude"]));
       }
     }
-  }, [boundsFromJson])
+  }, [boundsFromJson]);
 
   return (
     <ReactMapGl
@@ -101,16 +137,21 @@ function Map({
       width="100%"
       height="100%"
       onViewportChange={setViewport}
+      {...{ transformRequest }}
       {...viewport}
       {...props}
       className={classnames(styles.map, props.className)}
     >
-      <NavigationControl style={{left: 10, top: 10}} />
-      <ScaleControl maxWidth={200} unit="metric" style={{left: 10, bottom: 10}} />
+      <NavigationControl style={{ left: 10, top: 10 }} />
+      <ScaleControl
+        maxWidth={200}
+        unit="metric"
+        style={{ left: 10, bottom: 10 }}
+      />
 
       {children}
     </ReactMapGl>
-  )
+  );
 }
 
-export default withBaseMapStyle(Map)
+export default withBaseMapStyle(Map);
diff --git a/frontend/src/config.ts b/frontend/src/config.ts
index 5e657eb..2a439be 100644
--- a/frontend/src/config.ts
+++ b/frontend/src/config.ts
@@ -1,50 +1,45 @@
-import React from 'react'
+import React from "react";
 
-export type MapSoure =
-  | {
-      type: 'vector'
-      url: string
-    }
-  | {
-      type: 'vector'
-      tiles: string[]
-      minzoom: number
-      maxzoom: number
-    }
+export type MapSource = {
+  type: "vector";
+  tiles: string[];
+  minzoom: number;
+  maxzoom: number;
+};
 
 export interface Config {
-  apiUrl: string
+  apiUrl: string;
   mapHome: {
-    latitude: number
-    longitude: number
-    zoom: number
-  }
-  obsMapSource?: MapSoure
-  imprintUrl?: string
-  privacyPolicyUrl?: string
+    latitude: number;
+    longitude: number;
+    zoom: number;
+  };
+  obsMapSource?: MapSource;
+  imprintUrl?: string;
+  privacyPolicyUrl?: string;
   banner?: {
-    text: string
-    style?: 'warning' | 'info'
-  }
+    text: string;
+    style?: "warning" | "info";
+  };
 }
 
 async function loadConfig(): Promise<Config> {
-  const response = await fetch(__webpack_public_path__ + 'config.json')
-  const config = await response.json()
-  return config
+  const response = await fetch(__webpack_public_path__ + "config.json");
+  const config = await response.json();
+  return config;
 }
 
-let _configPromise: Promise<Config> = loadConfig()
-let _configCache: null | Config = null
+let _configPromise: Promise<Config> = loadConfig();
+let _configCache: null | Config = null;
 
 export function useConfig() {
-  const [config, setConfig] = React.useState<Config>(_configCache)
+  const [config, setConfig] = React.useState<Config>(_configCache);
   React.useEffect(() => {
     if (!_configCache) {
-      _configPromise.then(setConfig)
+      _configPromise.then(setConfig);
     }
-  }, [])
-  return config
+  }, []);
+  return config;
 }
 
-export default _configPromise
+export default _configPromise;
diff --git a/frontend/src/pages/MapPage/LayerSidebar.tsx b/frontend/src/pages/MapPage/LayerSidebar.tsx
index caecb65..718bfd7 100644
--- a/frontend/src/pages/MapPage/LayerSidebar.tsx
+++ b/frontend/src/pages/MapPage/LayerSidebar.tsx
@@ -32,10 +32,14 @@ const ROAD_ATTRIBUTE_OPTIONS = [
   "zone",
 ];
 
+type User = Object;
+
 function LayerSidebar({
   mapConfig,
+  login,
   setMapConfigFlag,
 }: {
+  login: User | null;
   mapConfig: MapConfig;
   setMapConfigFlag: (flag: string, value: unknown) => void;
 }) {
@@ -44,6 +48,7 @@ function LayerSidebar({
     baseMap: { style },
     obsRoads: { show: showRoads, showUntagged, attribute, maxCount },
     obsEvents: { show: showEvents },
+    filters: { currentUser: filtersCurrentUser },
   } = mapConfig;
 
   return (
@@ -134,22 +139,40 @@ function LayerSidebar({
                   />
                 </List.Item>
               </>
-            ) : attribute.endsWith('zone') ? (
-             <>
-              <List.Item>
-                <Label size="small" style={{background: "blue",color:"white"}}>{t("general.zone.urban")} (1.5&nbsp;m)</Label>
-                <Label size="small" style={{background: "cyan", color:"black"}}>{t("general.zone.rural")}(2&nbsp;m)</Label>
-              </List.Item></>
-            ) :
-            (
+            ) : attribute.endsWith("zone") ? (
               <>
                 <List.Item>
-                  <List.Header>{_.upperFirst(t("general.zone.urban"))}</List.Header>
-                  <DiscreteColorMapLegend map={colorByDistance('distance_overtaker')[3][5].slice(2)} />
+                  <Label
+                    size="small"
+                    style={{ background: "blue", color: "white" }}
+                  >
+                    {t("general.zone.urban")} (1.5&nbsp;m)
+                  </Label>
+                  <Label
+                    size="small"
+                    style={{ background: "cyan", color: "black" }}
+                  >
+                    {t("general.zone.rural")}(2&nbsp;m)
+                  </Label>
+                </List.Item>
+              </>
+            ) : (
+              <>
+                <List.Item>
+                  <List.Header>
+                    {_.upperFirst(t("general.zone.urban"))}
+                  </List.Header>
+                  <DiscreteColorMapLegend
+                    map={colorByDistance("distance_overtaker")[3][5].slice(2)}
+                  />
                 </List.Item>
                 <List.Item>
-                  <List.Header>{_.upperFirst(t("general.zone.rural"))}</List.Header>
-                  <DiscreteColorMapLegend map={colorByDistance('distance_overtaker')[3][3].slice(2)} />
+                  <List.Header>
+                    {_.upperFirst(t("general.zone.rural"))}
+                  </List.Header>
+                  <DiscreteColorMapLegend
+                    map={colorByDistance("distance_overtaker")[3][3].slice(2)}
+                  />
                 </List.Item>
               </>
             )}
@@ -172,15 +195,38 @@ function LayerSidebar({
         {showEvents && (
           <>
             <List.Item>
-              <List.Header>{_.upperFirst(t('general.zone.urban'))}</List.Header>
-              <DiscreteColorMapLegend map={colorByDistance('distance_overtaker')[3][5].slice(2)} />
+              <List.Header>{_.upperFirst(t("general.zone.urban"))}</List.Header>
+              <DiscreteColorMapLegend
+                map={colorByDistance("distance_overtaker")[3][5].slice(2)}
+              />
             </List.Item>
             <List.Item>
-              <List.Header>{_.upperFirst(t('general.zone.rural'))}</List.Header>
-              <DiscreteColorMapLegend map={colorByDistance('distance_overtaker')[3][3].slice(2)} />
+              <List.Header>{_.upperFirst(t("general.zone.rural"))}</List.Header>
+              <DiscreteColorMapLegend
+                map={colorByDistance("distance_overtaker")[3][3].slice(2)}
+              />
             </List.Item>
           </>
         )}
+        <Divider />
+        <List.Item>
+          <Header as="h4" style={{ marginBottom: 8 }}>
+            Filter
+          </Header>
+          {login && (
+            <Checkbox
+              toggle
+              size="small"
+              id="filters.currentUser"
+              checked={filtersCurrentUser}
+              onChange={() =>
+                setMapConfigFlag("filters.currentUser", !filtersCurrentUser)
+              }
+              label="Show only my own data"
+            />
+          )}
+          {!login && <div>No filters available without login.</div>}
+        </List.Item>
       </List>
     </div>
   );
@@ -194,6 +240,7 @@ export default connect(
       (state as any).mapConfig as MapConfig
       //
     ),
+    login: state.login,
   }),
   { setMapConfigFlag: setMapConfigFlagAction }
   //
diff --git a/frontend/src/pages/MapPage/index.tsx b/frontend/src/pages/MapPage/index.tsx
index a3196dd..7298a46 100644
--- a/frontend/src/pages/MapPage/index.tsx
+++ b/frontend/src/pages/MapPage/index.tsx
@@ -1,44 +1,45 @@
-import React, {useState, useCallback, useMemo} from 'react'
-import _ from 'lodash'
-import {Button} from 'semantic-ui-react'
-import {Layer, Source} from 'react-map-gl'
-import produce from 'immer'
+import React, { useState, useCallback, useMemo } from "react";
+import _ from "lodash";
+import { connect } from "react-redux";
+import { Button } from "semantic-ui-react";
+import { Layer, Source } from "react-map-gl";
+import produce from "immer";
 
 import {Page, Map} from 'components'
 import {useConfig} from 'config'
 import {colorByDistance, colorByCount, borderByZone, reds, isValidAttribute} from 'mapstyles'
 import {useMapConfig} from 'reducers/mapConfig'
 
-import RoadInfo from './RoadInfo'
-import LayerSidebar from './LayerSidebar'
-import styles from './styles.module.less'
+import RoadInfo from "./RoadInfo";
+import LayerSidebar from "./LayerSidebar";
+import styles from "./styles.module.less";
 
 const untaggedRoadsLayer = {
-  id: 'obs_roads_untagged',
-  type: 'line',
-  source: 'obs',
-  'source-layer': 'obs_roads',
-  filter: ['!', ['to-boolean', ['get', 'distance_overtaker_mean']]],
+  id: "obs_roads_untagged",
+  type: "line",
+  source: "obs",
+  "source-layer": "obs_roads",
+  filter: ["!", ["to-boolean", ["get", "distance_overtaker_mean"]]],
   layout: {
-    'line-cap': 'round',
-    'line-join': 'round',
+    "line-cap": "round",
+    "line-join": "round",
   },
   paint: {
-    'line-width': ['interpolate', ['exponential', 1.5], ['zoom'], 12, 2, 17, 2],
-    'line-color': '#ABC',
-    'line-opacity': ['interpolate', ['linear'], ['zoom'], 14, 0, 15, 1],
-    'line-offset': [
-      'interpolate',
-      ['exponential', 1.5],
-      ['zoom'],
+    "line-width": ["interpolate", ["exponential", 1.5], ["zoom"], 12, 2, 17, 2],
+    "line-color": "#ABC",
+    "line-opacity": ["interpolate", ["linear"], ["zoom"], 14, 0, 15, 1],
+    "line-offset": [
+      "interpolate",
+      ["exponential", 1.5],
+      ["zoom"],
       12,
-      ['get', 'offset_direction'],
+      ["get", "offset_direction"],
       19,
-      ['*', ['get', 'offset_direction'], 8],
+      ["*", ["get", "offset_direction"], 8],
     ],
   },
   minzoom: 12,
-}
+};
 
 const getUntaggedRoadsLayer = (colorAttribute, maxCount) =>
   produce(untaggedRoadsLayer, (draft) => {
@@ -48,110 +49,122 @@ const getUntaggedRoadsLayer = (colorAttribute, maxCount) =>
 
 const getRoadsLayer = (colorAttribute, maxCount) =>
   produce(untaggedRoadsLayer, (draft) => {
-    draft.id = 'obs_roads_normal'
+    draft.id = "obs_roads_normal";
     draft.filter = isValidAttribute(colorAttribute)
-    draft.paint['line-width'][6] = 6 // scale bigger on zoom
-    draft.paint['line-color'] = colorAttribute.startsWith('distance_')
+    draft.paint["line-width"][6] = 6; // scale bigger on zoom
+    draft.paint["line-color"] = colorAttribute.startsWith("distance_")
       ? colorByDistance(colorAttribute)
-      : colorAttribute.endsWith('_count')
+      : colorAttribute.endsWith("_count")
       ? colorByCount(colorAttribute, maxCount)
       : colorAttribute.endsWith('zone')
       ? borderByZone()
-      : '#DDD'
-    draft.paint['line-opacity'][3] = 12
-    draft.paint['line-opacity'][5] = 13
-  })
+      : "#DDD";
+    draft.paint["line-opacity"][3] = 12;
+    draft.paint["line-opacity"][5] = 13;
+  });
 
 const getEventsLayer = () => ({
-  id: 'obs_events',
-  type: 'circle',
-  source: 'obs',
-  'source-layer': 'obs_events',
+  id: "obs_events",
+  type: "circle",
+  source: "obs",
+  "source-layer": "obs_events",
   paint: {
-    'circle-radius': ['interpolate', ['linear'], ['zoom'], 14, 3, 17, 8],
-    'circle-color': colorByDistance('distance_overtaker'),
+    "circle-radius": ["interpolate", ["linear"], ["zoom"], 14, 3, 17, 8],
+    "circle-color": colorByDistance("distance_overtaker"),
   },
   minzoom: 11,
-})
+});
 
 const getEventsTextLayer = () => ({
-  id: 'obs_events_text',
-  type: 'symbol',
+  id: "obs_events_text",
+  type: "symbol",
   minzoom: 18,
-  source: 'obs',
-  'source-layer': 'obs_events',
+  source: "obs",
+  "source-layer": "obs_events",
   layout: {
-    'text-field': [
-      'number-format',
-      ['get', 'distance_overtaker'],
-      {'min-fraction-digits': 2, 'max-fraction-digits': 2},
+    "text-field": [
+      "number-format",
+      ["get", "distance_overtaker"],
+      { "min-fraction-digits": 2, "max-fraction-digits": 2 },
     ],
-    'text-allow-overlap': true,
-    'text-font': ['Open Sans Bold', 'Arial Unicode MS Regular'],
-    'text-size': 14,
-    'text-keep-upright': false,
-    'text-anchor': 'left',
-    'text-radial-offset': 1,
-    'text-rotate': ['-', 90, ['*', ['get', 'course'], 180 / Math.PI]],
-    'text-rotation-alignment': 'map',
+    "text-allow-overlap": true,
+    "text-font": ["Open Sans Bold", "Arial Unicode MS Regular"],
+    "text-size": 14,
+    "text-keep-upright": false,
+    "text-anchor": "left",
+    "text-radial-offset": 1,
+    "text-rotate": ["-", 90, ["*", ["get", "course"], 180 / Math.PI]],
+    "text-rotation-alignment": "map",
   },
   paint: {
-    'text-halo-color': 'rgba(255, 255, 255, 1)',
-    'text-halo-width': 1,
-    'text-opacity': ['interpolate', ['linear'], ['zoom'], 15, 0, 15.3, 1],
+    "text-halo-color": "rgba(255, 255, 255, 1)",
+    "text-halo-width": 1,
+    "text-opacity": ["interpolate", ["linear"], ["zoom"], 15, 0, 15.3, 1],
   },
-})
+});
 
-export default function MapPage() {
-  const {obsMapSource} = useConfig() || {}
-  const [clickLocation, setClickLocation] = useState<{longitude: number; latitude: number} | null>(null)
+function MapPage({ login }) {
+  const { obsMapSource } = useConfig() || {};
+  const [clickLocation, setClickLocation] = useState<{
+    longitude: number;
+    latitude: number;
+  } | null>(null);
 
-  const mapConfig = useMapConfig()
+  const mapConfig = useMapConfig();
 
   const onClick = useCallback(
     (e) => {
-      let node = e.target
+      let node = e.target;
       while (node) {
         if (node?.classList?.contains(styles.mapInfoBox)) {
-          return
+          return;
         }
-        node = node.parentNode
+        node = node.parentNode;
       }
 
-      setClickLocation({longitude: e.lngLat[0], latitude: e.lngLat[1]})
+      setClickLocation({ longitude: e.lngLat[0], latitude: e.lngLat[1] });
     },
     [setClickLocation]
-  )
+  );
 
-  const [layerSidebar, setLayerSidebar] = useState(true)
+  const [layerSidebar, setLayerSidebar] = useState(true);
 
   const {
-    obsRoads: {attribute, maxCount},
-  } = mapConfig
+    obsRoads: { attribute, maxCount },
+  } = mapConfig;
 
-  const layers = []
+  const layers = [];
 
   const untaggedRoadsLayerCustom = useMemo(() => getUntaggedRoadsLayer(attribute), [attribute])
   if (mapConfig.obsRoads.show && mapConfig.obsRoads.showUntagged) {
     layers.push(untaggedRoadsLayerCustom)
   }
 
-  const roadsLayer = useMemo(() => getRoadsLayer(attribute, maxCount), [attribute, maxCount])
+  const roadsLayer = useMemo(
+    () => getRoadsLayer(attribute, maxCount),
+    [attribute, maxCount]
+  );
   if (mapConfig.obsRoads.show) {
-    layers.push(roadsLayer)
+    layers.push(roadsLayer);
   }
 
-  const eventsLayer = useMemo(() => getEventsLayer(), [])
-  const eventsTextLayer = useMemo(() => getEventsTextLayer(), [])
+  const eventsLayer = useMemo(() => getEventsLayer(), []);
+  const eventsTextLayer = useMemo(() => getEventsTextLayer(), []);
   if (mapConfig.obsEvents.show) {
-    layers.push(eventsLayer)
-    layers.push(eventsTextLayer)
+    layers.push(eventsLayer);
+    layers.push(eventsTextLayer);
   }
 
   if (!obsMapSource) {
-    return null
+    return null;
   }
 
+  const tiles = obsMapSource?.tiles?.map(
+    (tileUrl: string) =>
+      tileUrl +
+      (login && mapConfig.filters.currentUser ? `?user=${login.username}` : "")
+  );
+
   return (
     <Page fullScreen title="Map">
       <div className={styles.mapContainer}>
@@ -164,7 +177,7 @@ export default function MapPage() {
           <Map viewportFromUrl onClick={onClick}>
             <Button
               style={{
-                position: 'absolute',
+                position: "absolute",
                 left: 44,
                 top: 9,
               }}
@@ -173,16 +186,20 @@ export default function MapPage() {
               active={layerSidebar}
               onClick={() => setLayerSidebar(layerSidebar ? false : true)}
             />
-            <Source id="obs" {...obsMapSource}>
+            <Source id="obs" {...obsMapSource} tiles={tiles}>
               {layers.map((layer) => (
                 <Layer key={layer.id} {...layer} />
               ))}
             </Source>
 
-            <RoadInfo {...{clickLocation}} />
+            <RoadInfo {...{ clickLocation }} />
           </Map>
         </div>
       </div>
     </Page>
-  )
+  );
 }
+
+export default connect(
+  (state) => ({login: state.login}),
+)(MapPage);
diff --git a/frontend/src/reducers/mapConfig.ts b/frontend/src/reducers/mapConfig.ts
index e7c14cf..4d8d8dc 100644
--- a/frontend/src/reducers/mapConfig.ts
+++ b/frontend/src/reducers/mapConfig.ts
@@ -27,6 +27,9 @@ export type MapConfig = {
   obsEvents: {
     show: boolean;
   };
+  filters: {
+    currentUser: boolean;
+  };
 };
 
 export const initialState: MapConfig = {
@@ -42,6 +45,9 @@ export const initialState: MapConfig = {
   obsEvents: {
     show: false,
   },
+  filters: {
+    currentUser: false,
+  },
 };
 
 type MapConfigAction = {
diff --git a/frontend/src/utils.js b/frontend/src/utils.js
index 25d2977..2fdb1a7 100644
--- a/frontend/src/utils.js
+++ b/frontend/src/utils.js
@@ -1,3 +1,5 @@
+import {useRef, useCallback} from 'react'
+
 // Wraps the register callback from useForm into a new ref function, such that
 // any child of the provided element that is an input component will be
 // registered.
@@ -22,3 +24,9 @@ export function* pairwise(it) {
     lastValue = i
   }
 }
+
+export function useCallbackRef(fn) {
+  const fnRef = useRef()
+  fnRef.current = fn
+  return useCallback(((...args) => fnRef.current(...args)), [])
+}