diff --git a/frontend/src/components/Block/Block.tsx b/frontend/src/components/Block/Block.tsx
index 0bbcc18a0..0de00f482 100644
--- a/frontend/src/components/Block/Block.tsx
+++ b/frontend/src/components/Block/Block.tsx
@@ -5,87 +5,40 @@ import classNames from "classnames";
 
 import useBoundStore from "@/util/stores";
 import { getNextRound, useBlock } from "@/API";
-import Consent from "@/components/Consent/Consent";
+import Consent, { ConsentProps } from "@/components/Consent/Consent";
 import DefaultPage from "@/components/Page/DefaultPage";
-import Explainer from "@/components/Explainer/Explainer";
-import Final from "@/components/Final/Final";
-import Loading from "@/components/Loading/Loading";
-import Playlist from "@/components/Playlist/Playlist";
-import Score from "@/components/Score/Score";
-import Trial, { IFeedbackForm } from "@/components/Trial/Trial";
-import Info from "@/components/Info/Info";
+import Explainer, { ExplainerProps } from "@/components/Explainer/Explainer";
+import Final, { FinalProps } from "@/components/Final/Final";
+import Loading, { LoadingProps } from "@/components/Loading/Loading";
+import Playlist, { PlaylistProps } from "@/components/Playlist/Playlist";
+import Score, { ScoreProps } from "@/components/Score/Score";
+import Trial, { TrialProps } from "@/components/Trial/Trial";
+import Info, { InfoProps } from "@/components/Info/Info";
 import FloatingActionButton from "@/components/FloatingActionButton/FloatingActionButton";
 import UserFeedback from "@/components/UserFeedback/UserFeedback";
 import FontLoader from "@/components/FontLoader/FontLoader";
 import useResultHandler from "@/hooks/useResultHandler";
 import Session from "@/types/Session";
-import { PlaybackArgs, PlaybackView } from "@/types/Playback";
-import { FeedbackInfo, Step } from "@/types/Block";
-import { TrialConfig } from "@/types/Trial";
-import Social from "@/types/Social";
+import { RedirectProps } from "../Redirect/Redirect";
 
-type BlockView = PlaybackView | "TRIAL_VIEW" | "EXPLAINER" | "SCORE" | "FINAL" | "PLAYLIST" | "LOADING" | "CONSENT" | "INFO" | "REDIRECT";
-
-interface ActionProps {
-
-    view: BlockView;
+interface SharedActionProps {
     title?: string;
-    url?: string;
-    next_round?: any[];
-
-    // Some views require additional data
-    button_label?: string;
-    instruction?: string;
-    timer?: number;
-    steps: Step[];
-    body?: string;
-    html?: string;
-    feedback_form?: IFeedbackForm;
-    playback?: PlaybackArgs;
-    config?: TrialConfig;
-
-    // TODO: Think about how to properly handle the typing of different views
-
-    // Score-related
-    score?: number;
-    score_message?: string;
-    texts?: {
-        score: string;
-        next: string;
-        listen_explainer: string;
-    };
-    feedback?: string;
-    icon?: string;
-
-    // Final related
-    feedback_info?: FeedbackInfo;
-    rank?: string;
-    button?: {
-        text: string;
-        link: string;
-    };
-    final_text?: string | TrustedHTML;
-    show_participant_link?: boolean;
-    participant_id_only?: boolean;
-    show_profile_link?: boolean;
-    action_texts?: {
-        all_experiments: string;
-        profile: string;
-        play_again: string;
-    }
-    points?: string;
-    social?: Social;
-    logo?: {
-        image: string;
-        link: string;
-    };
-
-    // Consent related
-    text?: string;
-    confirm?: string;
-    deny?: string;
+    config?: object;
+    style?: object;
 }
 
+type ActionProps = SharedActionProps &
+    (
+        | { view: "CONSENT" } & ConsentProps
+        | { view: "EXPLAINER" } & ExplainerProps
+        | { view: "INFO" } & InfoProps
+        | { view: "TRIAL_VIEW" } & TrialProps
+        | { view: 'SCORE' } & ScoreProps
+        | { view: 'FINAL' } & FinalProps
+        | { view: 'PLAYLIST' } & PlaylistProps
+        | { view: 'REDIRECT' } & RedirectProps
+        | { view: "LOADING" } & LoadingProps
+    )
 
 // Block handles the main (experiment) block flow:
 // - Loads the block and participant
@@ -111,7 +64,7 @@ const Block = () => {
     // Current block state
     const [actions, setActions] = useState([]);
     const [state, setState] = useState<ActionProps | null>(startState);
-    const [key, setKey] = useState(null);
+    const [key, setKey] = useState<number>(Math.random());
     const playlist = useRef(null);
 
     // API hooks
@@ -239,46 +192,57 @@ const Block = () => {
     });
 
     // Render block state
-    const render = (view: BlockView) => {
+    const render = () => {
+
+        if (!state) {
+            return (
+                <div className="text-white bg-danger">
+                    No valid state
+                </div>
+            );
+        }
+
         // Default attributes for every view
         const attrs = {
-            block,
-            participant,
+            block: block!,
+            participant: participant!,
             loadingText,
             onResult,
             onNext,
             playlist,
+            key,
             ...state,
         };
 
         // Show view, based on the unique view ID:
-        switch (view) {
+        switch (attrs.view) {
             // Block views
             // -------------------------
             case "TRIAL_VIEW":
-                return <Trial key={key} {...attrs} />;
+                return <Trial {...attrs} />;
 
             // Information & Scoring
             // -------------------------
             case "EXPLAINER":
-                return <Explainer key={key} {...attrs}/>;
+                return <Explainer {...attrs} />;
             case "SCORE":
-                return <Score key={key} {...attrs} />;
+                return <Score {...attrs} />;
             case "FINAL":
-                return <Final key={key} {...attrs} />;
+                return <Final {...attrs} />;
 
             // Generic / helpers
             // -------------------------
             case "PLAYLIST":
-                return <Playlist key={key} {...attrs} />;
+                return <Playlist {...attrs} />;
             case "LOADING":
-                return <Loading key={key} {...attrs} />;
+                return <Loading {...attrs} />;
             case "CONSENT":
-                return <Consent key={key} {...attrs} />;
+                return <Consent {...attrs} />;
             case "INFO":
-                return <Info key={key} {...attrs} />;
+                return <Info {...attrs} />;
             case "REDIRECT":
-                return window.location.replace(state.url);
+                window.location.replace(state.url);
+                return null;
 
             default:
                 return (
@@ -326,7 +290,7 @@ const Block = () => {
                         }
                         className={className}
                     >
-                        {render(view)}
+                        {render()}
 
                         {block?.feedback_info?.show_float_button && (
                             <FloatingActionButton>
diff --git a/frontend/src/components/Explainer/Explainer.tsx b/frontend/src/components/Explainer/Explainer.tsx
index 8137f6f79..d4a0ff7c1 100644
--- a/frontend/src/components/Explainer/Explainer.tsx
+++ b/frontend/src/components/Explainer/Explainer.tsx
@@ -6,7 +6,7 @@ interface ExplainerStep {
     description: string;
 }
 
-interface ExplainerProps {
+export interface ExplainerProps {
     instruction: string;
     button_label: string;
     steps?: Array<ExplainerStep>;
diff --git a/frontend/src/components/Final/Final.tsx b/frontend/src/components/Final/Final.tsx
index fb3f7679d..c6104a1c2 100644
--- a/frontend/src/components/Final/Final.tsx
+++ b/frontend/src/components/Final/Final.tsx
@@ -14,7 +14,7 @@ import ISocial from "@/types/Social";
 import Block, { FeedbackInfo } from "@/types/Block";
 import Participant from "@/types/Participant";
 
-interface FinalProps {
+export interface FinalProps {
     block: Block;
     participant: Participant;
     score: number;
diff --git a/frontend/src/components/Info/Info.tsx b/frontend/src/components/Info/Info.tsx
index b8de15166..b25affc2b 100644
--- a/frontend/src/components/Info/Info.tsx
+++ b/frontend/src/components/Info/Info.tsx
@@ -2,7 +2,7 @@ import { useEffect, useState } from "react";
 
 import Button from "../Button/Button";
 
-interface InfoProps {
+export interface InfoProps {
     heading?: string;
     body: string | TrustedHTML;
     button_label?: string;
diff --git a/frontend/src/components/Loading/Loading.tsx b/frontend/src/components/Loading/Loading.tsx
index df448691f..cdfbabbd6 100644
--- a/frontend/src/components/Loading/Loading.tsx
+++ b/frontend/src/components/Loading/Loading.tsx
@@ -1,6 +1,6 @@
 import Circle from "../Circle/Circle";
 
-interface LoadingProps {
+export interface LoadingProps {
     duration?: number;
     loadingText?: string;
 }
diff --git a/frontend/src/components/Playlist/Playlist.tsx b/frontend/src/components/Playlist/Playlist.tsx
index 5dab5120d..d62e3befe 100644
--- a/frontend/src/components/Playlist/Playlist.tsx
+++ b/frontend/src/components/Playlist/Playlist.tsx
@@ -1,7 +1,7 @@
 import { ExtendedBlock } from "@/types/Block";
 import { MutableRefObject, useEffect } from "react";
 
-interface PlaylistProps {
+export interface PlaylistProps {
     block: ExtendedBlock;
     instruction: string;
     onNext: () => void;
diff --git a/frontend/src/components/Redirect/Redirect.tsx b/frontend/src/components/Redirect/Redirect.tsx
index f3e929d23..2300dd696 100644
--- a/frontend/src/components/Redirect/Redirect.tsx
+++ b/frontend/src/components/Redirect/Redirect.tsx
@@ -1,7 +1,7 @@
 import { useEffect } from "react";
 import { useNavigate } from "react-router-dom";
 
-interface RedirectProps {
+export interface RedirectProps {
     to: string;
 }
 
diff --git a/frontend/src/components/Score/Score.tsx b/frontend/src/components/Score/Score.tsx
index d78c5caa5..49467b0ad 100644
--- a/frontend/src/components/Score/Score.tsx
+++ b/frontend/src/components/Score/Score.tsx
@@ -3,7 +3,7 @@ import classNames from "classnames";
 import Circle from "../Circle/Circle";
 import Button from "../Button/Button";
 
-interface ScoreProps {
+export interface ScoreProps {
     last_song?: string;
     score: number;
     score_message: string;
diff --git a/frontend/src/components/Trial/Trial.tsx b/frontend/src/components/Trial/Trial.tsx
index a4d717d7a..317af8074 100644
--- a/frontend/src/components/Trial/Trial.tsx
+++ b/frontend/src/components/Trial/Trial.tsx
@@ -1,7 +1,7 @@
 import { useState, useRef, useCallback } from "react";
 import classNames from "classnames";
 
-import { getCurrentTime, getTimeSince } from "../../util/time";
+import { getCurrentTime, getTimeSince } from "@/util/time";
 import FeedbackForm from "../FeedbackForm/FeedbackForm";
 import HTML from "../HTML/HTML";
 import Playback from "../Playback/Playback";
@@ -9,6 +9,7 @@ import Button from "../Button/Button";
 import Question from "@/types/Question";
 import { OnResultType } from "@/hooks/useResultHandler";
 import { TrialConfig } from "@/types/Trial";
+import { PlaybackArgs } from "@/types/Playback";
 
 export interface IFeedbackForm {
     form: Question[];
@@ -17,8 +18,8 @@ export interface IFeedbackForm {
     is_skippable: boolean;
 }
 
-interface TrialProps {
-    playback: any;
+export interface TrialProps {
+    playback: PlaybackArgs;
     html: { body: string | TrustedHTML };
     feedback_form: IFeedbackForm;
     config: TrialConfig;
diff --git a/frontend/src/util/section.js b/frontend/src/util/section.js
deleted file mode 100644
index 1172e6137..000000000
--- a/frontend/src/util/section.js
+++ /dev/null
@@ -1,16 +0,0 @@
- // Get a section url from given (nested) action
- export const getSectionUrl = (action) => {
-  if (!action) {
-      return "";
-  }
-
-  if (action.section && action.section.url) {
-      return action.section.url;
-  }
-
-  if (action.next_round) {
-      return getSectionUrl(action.next_round);
-  }
-
-  return "";
-};
diff --git a/frontend/src/util/section.ts b/frontend/src/util/section.ts
new file mode 100644
index 000000000..c7b2c9f8c
--- /dev/null
+++ b/frontend/src/util/section.ts
@@ -0,0 +1,18 @@
+/** Get a section url from given (nested) action
+ * TODO: This function is not used anywhere in the codebase, should it be removed?
+ */
+export const getSectionUrl = (action) => {
+    if (!action) {
+        return "";
+    }
+
+    if (action.section && action.section.url) {
+        return action.section.url;
+    }
+
+    if (action.next_round) {
+        return getSectionUrl(action.next_round);
+    }
+
+    return "";
+};
diff --git a/frontend/src/util/time.js b/frontend/src/util/time.js
deleted file mode 100644
index e9d919ad2..000000000
--- a/frontend/src/util/time.js
+++ /dev/null
@@ -1,3 +0,0 @@
-export const getCurrentTime = () => Date.now() / 1000;
-
-export const getTimeSince = (time) => getCurrentTime() - time;
diff --git a/frontend/src/util/time.ts b/frontend/src/util/time.ts
new file mode 100644
index 000000000..785f35eb8
--- /dev/null
+++ b/frontend/src/util/time.ts
@@ -0,0 +1,3 @@
+export const getCurrentTime = () => Date.now() / 1000;
+
+export const getTimeSince = (time: number) => getCurrentTime() - time;