diff --git a/src/configurations/CalendarConfig.ts b/src/configurations/CalendarConfig.ts
index c3fcb9f..0e1123c 100644
--- a/src/configurations/CalendarConfig.ts
+++ b/src/configurations/CalendarConfig.ts
@@ -66,6 +66,7 @@ export class Configuration {
   public timeFormatConfig: ITimeFormatConfig;
   public currentWorkWeek: string;
   public selectedDate: Date;
+  public apiEndpoint: string = '/api';
 
   constructor(
     config: ICalendarConfig,
diff --git a/src/managers/ResizeHandleManager.ts b/src/managers/ResizeHandleManager.ts
index 863895a..42576f1 100644
--- a/src/managers/ResizeHandleManager.ts
+++ b/src/managers/ResizeHandleManager.ts
@@ -2,6 +2,7 @@ import { eventBus } from '../core/EventBus';
 import { CoreEvents } from '../constants/CoreEvents';
 import { Configuration } from '../configurations/CalendarConfig';
 import { IResizeEndEventPayload } from '../types/EventTypes';
+import { PositionUtils } from '../utils/PositionUtils';
 
 type SwpEventEl = HTMLElement & { updateHeight?: (h: number) => void };
 
@@ -18,7 +19,6 @@ export class ResizeHandleManager {
   private startDurationMin = 0;
   private direction: 'grow' | 'shrink' = 'grow';
 
-  private hourHeightPx: number;
   private snapMin: number;
   private minDurationMin: number;
   private animationId: number | null = null;
@@ -30,11 +30,12 @@ export class ResizeHandleManager {
   private pointerCaptured = false;
   private prevZ?: string;
   private config: Configuration;
+  private positionUtils: PositionUtils;
 
-  constructor(config: Configuration) {
+  constructor(config: Configuration, positionUtils: PositionUtils) {
     this.config = config;
+    this.positionUtils = positionUtils;
     const grid = this.config.gridSettings;
-    this.hourHeightPx = grid.hourHeight;
     this.snapMin = grid.snapInterval;
     this.minDurationMin = this.snapMin; // Use snap interval as minimum duration
   }
@@ -53,19 +54,6 @@ export class ResizeHandleManager {
     this.unsubscribers.forEach(u => u());
   }
 
-  private minutesPerPx(): number {
-    return 60 / this.hourHeightPx;
-  }
-
-  private pxFromMinutes(min: number): number {
-    return (min / 60) * this.hourHeightPx;
-  }
-
-  private roundSnap(min: number, dir: 'grow' | 'shrink'): number {
-    const q = min / this.snapMin;
-    return (dir === 'grow' ? Math.ceil(q) : Math.floor(q)) * this.snapMin;
-  }
-
   private refreshEventCache(): void {
     this.cachedEvents = Array.from(
       document.querySelectorAll<SwpEventEl>('swp-day-columns swp-event')
@@ -167,7 +155,7 @@ export class ResizeHandleManager {
     const startHeight = el.offsetHeight;
     this.startDurationMin = Math.max(
       this.minDurationMin,
-      Math.round(startHeight * this.minutesPerPx())
+      Math.round(this.positionUtils.pixelsToMinutes(startHeight))
     );
 
     this.prevZ = (el.closest<HTMLElement>('swp-event-group') ?? el).style.zIndex;
@@ -193,9 +181,9 @@ export class ResizeHandleManager {
     this.direction = dy >= 0 ? 'grow' : 'shrink';
 
     // Calculate raw height from pixel delta (no snapping - 100% smooth like drag & drop)
-    const startHeight = this.pxFromMinutes(this.startDurationMin);
+    const startHeight = this.positionUtils.minutesToPixels(this.startDurationMin);
     const rawHeight = startHeight + dy;
-    const minHeight = this.pxFromMinutes(this.minDurationMin);
+    const minHeight = this.positionUtils.minutesToPixels(this.minDurationMin);
 
     this.targetHeight = Math.max(minHeight, rawHeight); // Raw height, no snap
 
@@ -228,9 +216,9 @@ export class ResizeHandleManager {
 
     // Snap to grid on pointer up (like DragDropManager does on mouseUp)
     const currentHeight = this.targetEl.offsetHeight;
-    const snapDistancePx = this.pxFromMinutes(this.snapMin);
+    const snapDistancePx = this.positionUtils.minutesToPixels(this.snapMin);
     const snappedHeight = Math.round(currentHeight / snapDistancePx) * snapDistancePx;
-    const minHeight = this.pxFromMinutes(this.minDurationMin);
+    const minHeight = this.positionUtils.minutesToPixels(this.minDurationMin);
     const finalHeight = Math.max(minHeight, snappedHeight) - 3; // lille gap til grid-linjer
 
     this.targetEl.updateHeight?.(finalHeight);
diff --git a/src/repositories/ApiEventRepository.ts b/src/repositories/ApiEventRepository.ts
index a433a04..5cb816c 100644
--- a/src/repositories/ApiEventRepository.ts
+++ b/src/repositories/ApiEventRepository.ts
@@ -17,7 +17,7 @@ export class ApiEventRepository {
   private apiEndpoint: string;
 
   constructor(config: Configuration) {
-    this.apiEndpoint = config.apiEndpoint || '/api';
+    this.apiEndpoint = config.apiEndpoint;
   }
 
   /**