diff --git a/backend/src/controllers/questions.ts b/backend/src/controllers/questions.ts
index f1426b38..26efb4f4 100644
--- a/backend/src/controllers/questions.ts
+++ b/backend/src/controllers/questions.ts
@@ -5,13 +5,13 @@ import {
     getAllQuestions,
     getAnswersByQuestion,
     getQuestion,
-    getQuestionsAboutLearningObjectInAssignment
+    getQuestionsAboutLearningObjectInAssignment,
 } from '../services/questions.js';
 import { FALLBACK_LANG, FALLBACK_SEQ_NUM } from '../config.js';
 import { LearningObjectIdentifier } from '../entities/content/learning-object-identifier.js';
 import { QuestionDTO, QuestionId } from '@dwengo-1/common/interfaces/question';
 import { Language } from '@dwengo-1/common/util/language';
-import {AnswerDTO, AnswerId} from "@dwengo-1/common/interfaces/answer";
+import { AnswerDTO, AnswerId } from '@dwengo-1/common/interfaces/answer';
 
 interface QuestionPathParams {
     hruid: string;
@@ -62,10 +62,10 @@ function getQuestionId<ReqBody, ResBody>(
 }
 
 interface GetAllQuestionsQueryParams extends QuestionQueryParams {
-    classId?: string,
-    assignmentId?: number,
-    forStudent?: string,
-    full?: boolean
+    classId?: string;
+    assignmentId?: number;
+    forStudent?: string;
+    full?: boolean;
 }
 
 export async function getAllQuestionsHandler(
@@ -118,10 +118,10 @@ export async function getQuestionHandler(
 }
 
 interface GetQuestionAnswersQueryParams extends QuestionQueryParams {
-    full: boolean
+    full: boolean;
 }
 export async function getQuestionAnswersHandler(
-    req: Request<GetQuestionIdPathParams, {answers: AnswerDTO[] | AnswerId[]}, unknown, GetQuestionAnswersQueryParams>,
+    req: Request<GetQuestionIdPathParams, { answers: AnswerDTO[] | AnswerId[] }, unknown, GetQuestionAnswersQueryParams>,
     res: Response
 ): Promise<void> {
     const questionId = getQuestionId(req, res);
diff --git a/backend/src/controllers/submissions.ts b/backend/src/controllers/submissions.ts
index ac6c3bb9..73f1317f 100644
--- a/backend/src/controllers/submissions.ts
+++ b/backend/src/controllers/submissions.ts
@@ -1,13 +1,8 @@
 import { Request, Response } from 'express';
-import {
-    createSubmission,
-    deleteSubmission,
-    getSubmission,
-    getSubmissionsForLearningObjectAndAssignment
-} from '../services/submissions.js';
+import { createSubmission, deleteSubmission, getSubmission, getSubmissionsForLearningObjectAndAssignment } from '../services/submissions.js';
 import { SubmissionDTO } from '@dwengo-1/common/interfaces/submission';
 import { Language, languageMap } from '@dwengo-1/common/util/language';
-import {Submission} from "../entities/assignments/submission.entity";
+import { Submission } from '../entities/assignments/submission.entity';
 
 interface SubmissionParams {
     hruid: string;
@@ -15,27 +10,22 @@ interface SubmissionParams {
 }
 
 interface SubmissionQuery {
-    language: string,
+    language: string;
     version: number;
 }
 
 interface SubmissionsQuery extends SubmissionQuery {
-    classId: string,
-    assignmentId: number,
-    studentUsername?: string
+    classId: string;
+    assignmentId: number;
+    studentUsername?: string;
 }
 
-export async function getSubmissionsHandler(
-    req: Request<SubmissionParams, Submission[], null, SubmissionsQuery>,
-    res: Response
-): Promise<void> {
+export async function getSubmissionsHandler(req: Request<SubmissionParams, Submission[], null, SubmissionsQuery>, res: Response): Promise<void> {
     const loHruid = req.params.hruid;
     const lang = languageMap[req.query.language] || Language.Dutch;
-    const version = (req.query.version || 1);
+    const version = req.query.version || 1;
 
-    const submissions = await getSubmissionsForLearningObjectAndAssignment(
-        loHruid, lang, version, req.query.classId, req.query.assignmentId
-    );
+    const submissions = await getSubmissionsForLearningObjectAndAssignment(loHruid, lang, version, req.query.classId, req.query.assignmentId);
 
     res.json(submissions);
 }
diff --git a/backend/src/data/assignments/assignment-repository.ts b/backend/src/data/assignments/assignment-repository.ts
index c6766af9..db12a74f 100644
--- a/backend/src/data/assignments/assignment-repository.ts
+++ b/backend/src/data/assignments/assignment-repository.ts
@@ -15,11 +15,11 @@ export class AssignmentRepository extends DwengoEntityRepository<Assignment> {
                 within: {
                     teachers: {
                         $some: {
-                            username: teacherUsername
-                        }
-                    }
-                }
-            }
+                            username: teacherUsername,
+                        },
+                    },
+                },
+            },
         });
     }
     public async findAllAssignmentsInClass(within: Class): Promise<Assignment[]> {
diff --git a/backend/src/data/assignments/submission-repository.ts b/backend/src/data/assignments/submission-repository.ts
index a79dc417..c82ed9c3 100644
--- a/backend/src/data/assignments/submission-repository.ts
+++ b/backend/src/data/assignments/submission-repository.ts
@@ -3,7 +3,7 @@ import { Group } from '../../entities/assignments/group.entity.js';
 import { Submission } from '../../entities/assignments/submission.entity.js';
 import { LearningObjectIdentifier } from '../../entities/content/learning-object-identifier.js';
 import { Student } from '../../entities/users/student.entity.js';
-import {Assignment} from "../../entities/assignments/assignment.entity";
+import { Assignment } from '../../entities/assignments/assignment.entity';
 
 export class SubmissionRepository extends DwengoEntityRepository<Submission> {
     public async findSubmissionByLearningObjectAndSubmissionNumber(
@@ -46,7 +46,7 @@ export class SubmissionRepository extends DwengoEntityRepository<Submission> {
         return this.find(
             { onBehalfOf: group },
             {
-                populate: ["onBehalfOf.members"]
+                populate: ['onBehalfOf.members'],
             }
         );
     }
@@ -60,24 +60,26 @@ export class SubmissionRepository extends DwengoEntityRepository<Submission> {
         assignment: Assignment,
         forStudentUsername?: string
     ): Promise<Submission[]> {
-        const onBehalfOf = forStudentUsername ? {
-            assignment,
-            members: {
-                $some: {
-                    username: forStudentUsername
-                }
-            }
-        } : {
-            assignment
-        };
+        const onBehalfOf = forStudentUsername
+            ? {
+                  assignment,
+                  members: {
+                      $some: {
+                          username: forStudentUsername,
+                      },
+                  },
+              }
+            : {
+                  assignment,
+              };
 
         return this.findAll({
             where: {
                 learningObjectHruid: loId.hruid,
                 learningObjectLanguage: loId.language,
                 learningObjectVersion: loId.version,
-                onBehalfOf
-            }
+                onBehalfOf,
+            },
         });
     }
 
@@ -85,9 +87,7 @@ export class SubmissionRepository extends DwengoEntityRepository<Submission> {
         const result = await this.find(
             { submitter: student },
             {
-                populate: [
-                    "onBehalfOf.members"
-                ]
+                populate: ['onBehalfOf.members'],
             }
         );
 
diff --git a/backend/src/data/questions/question-repository.ts b/backend/src/data/questions/question-repository.ts
index 714c3818..6b961e07 100644
--- a/backend/src/data/questions/question-repository.ts
+++ b/backend/src/data/questions/question-repository.ts
@@ -3,11 +3,11 @@ import { Question } from '../../entities/questions/question.entity.js';
 import { LearningObjectIdentifier } from '../../entities/content/learning-object-identifier.js';
 import { Student } from '../../entities/users/student.entity.js';
 import { LearningObject } from '../../entities/content/learning-object.entity.js';
-import {Group} from "../../entities/assignments/group.entity";
-import {Assignment} from "../../entities/assignments/assignment.entity";
+import { Group } from '../../entities/assignments/group.entity';
+import { Assignment } from '../../entities/assignments/assignment.entity';
 
 export class QuestionRepository extends DwengoEntityRepository<Question> {
-    public async createQuestion(question: { loId: LearningObjectIdentifier; author: Student; inGroup: Group, content: string }): Promise<Question> {
+    public async createQuestion(question: { loId: LearningObjectIdentifier; author: Student; inGroup: Group; content: string }): Promise<Question> {
         const questionEntity = this.create({
             learningObjectHruid: question.loId.hruid,
             learningObjectLanguage: question.loId.language,
@@ -75,24 +75,26 @@ export class QuestionRepository extends DwengoEntityRepository<Question> {
         assignment: Assignment,
         forStudentUsername?: string
     ): Promise<Question[]> {
-        const inGroup = forStudentUsername ? {
-            assignment,
-            members: {
-                $some: {
-                    username: forStudentUsername
-                }
-            }
-        } : {
-            assignment
-        };
+        const inGroup = forStudentUsername
+            ? {
+                  assignment,
+                  members: {
+                      $some: {
+                          username: forStudentUsername,
+                      },
+                  },
+              }
+            : {
+                  assignment,
+              };
 
         return this.findAll({
             where: {
                 learningObjectHruid: loId.hruid,
                 learningObjectLanguage: loId.language,
                 learningObjectVersion: loId.version,
-                inGroup
-            }
+                inGroup,
+            },
         });
     }
 }
diff --git a/backend/src/entities/assignments/assignment.entity.ts b/backend/src/entities/assignments/assignment.entity.ts
index 52773909..e3f75489 100644
--- a/backend/src/entities/assignments/assignment.entity.ts
+++ b/backend/src/entities/assignments/assignment.entity.ts
@@ -1,4 +1,4 @@
-import {Collection, Entity, Enum, ManyToOne, OneToMany, PrimaryKey, Property} from '@mikro-orm/core';
+import { Collection, Entity, Enum, ManyToOne, OneToMany, PrimaryKey, Property } from '@mikro-orm/core';
 import { Class } from '../classes/class.entity.js';
 import { Group } from './group.entity.js';
 import { Language } from '@dwengo-1/common/util/language';
diff --git a/backend/src/entities/assignments/group.entity.ts b/backend/src/entities/assignments/group.entity.ts
index 1a69ed4b..55770b7f 100644
--- a/backend/src/entities/assignments/group.entity.ts
+++ b/backend/src/entities/assignments/group.entity.ts
@@ -1,4 +1,4 @@
-import {Collection, Entity, ManyToMany, ManyToOne, PrimaryKey} from '@mikro-orm/core';
+import { Collection, Entity, ManyToMany, ManyToOne, PrimaryKey } from '@mikro-orm/core';
 import { Assignment } from './assignment.entity.js';
 import { Student } from '../users/student.entity.js';
 import { GroupRepository } from '../../data/assignments/group-repository.js';
diff --git a/backend/src/entities/assignments/submission.entity.ts b/backend/src/entities/assignments/submission.entity.ts
index 728dd436..82d49a40 100644
--- a/backend/src/entities/assignments/submission.entity.ts
+++ b/backend/src/entities/assignments/submission.entity.ts
@@ -22,7 +22,7 @@ export class Submission {
     submissionNumber?: number;
 
     @ManyToOne({
-        entity: () => Group
+        entity: () => Group,
     })
     onBehalfOf!: Group;
 
@@ -34,8 +34,6 @@ export class Submission {
     @Property({ type: 'datetime' })
     submissionTime!: Date;
 
-
-
     @Property({ type: 'json' })
     content!: string;
 }
diff --git a/backend/src/entities/questions/question.entity.ts b/backend/src/entities/questions/question.entity.ts
index c6df4e6a..44ff3e32 100644
--- a/backend/src/entities/questions/question.entity.ts
+++ b/backend/src/entities/questions/question.entity.ts
@@ -2,7 +2,7 @@ import { Entity, Enum, ManyToOne, PrimaryKey, Property } from '@mikro-orm/core';
 import { Student } from '../users/student.entity.js';
 import { QuestionRepository } from '../../data/questions/question-repository.js';
 import { Language } from '@dwengo-1/common/util/language';
-import {Group} from "../assignments/group.entity";
+import { Group } from '../assignments/group.entity';
 
 @Entity({ repository: () => QuestionRepository })
 export class Question {
diff --git a/backend/src/interfaces/group.ts b/backend/src/interfaces/group.ts
index d3785137..295c7e0f 100644
--- a/backend/src/interfaces/group.ts
+++ b/backend/src/interfaces/group.ts
@@ -1,11 +1,11 @@
 import { Group } from '../entities/assignments/group.entity.js';
-import {mapToAssignment, mapToAssignmentDTO, mapToAssignmentDTOId} from './assignment.js';
-import {mapToStudent, mapToStudentDTO} from './student.js';
-import {GroupDTO} from '@dwengo-1/common/interfaces/group';
-import {getGroupRepository} from "../data/repositories";
-import {AssignmentDTO} from "@dwengo-1/common/interfaces/assignment";
-import {Class} from "../entities/classes/class.entity";
-import {StudentDTO} from "@dwengo-1/common/interfaces/student";
+import { mapToAssignment, mapToAssignmentDTO, mapToAssignmentDTOId } from './assignment.js';
+import { mapToStudent, mapToStudentDTO } from './student.js';
+import { GroupDTO } from '@dwengo-1/common/interfaces/group';
+import { getGroupRepository } from '../data/repositories';
+import { AssignmentDTO } from '@dwengo-1/common/interfaces/assignment';
+import { Class } from '../entities/classes/class.entity';
+import { StudentDTO } from '@dwengo-1/common/interfaces/student';
 
 export function mapToGroup(groupDto: GroupDTO, clazz: Class): Group {
     const assignmentDto = groupDto.assignment as AssignmentDTO;
@@ -13,7 +13,7 @@ export function mapToGroup(groupDto: GroupDTO, clazz: Class): Group {
     return getGroupRepository().create({
         groupNumber: groupDto.groupNumber,
         assignment: mapToAssignment(assignmentDto, clazz),
-        members: groupDto.members!.map(studentDto => mapToStudent(studentDto as StudentDTO))
+        members: groupDto.members!.map((studentDto) => mapToStudent(studentDto as StudentDTO)),
     });
 }
 
diff --git a/backend/src/interfaces/question.ts b/backend/src/interfaces/question.ts
index 5419618a..a9347047 100644
--- a/backend/src/interfaces/question.ts
+++ b/backend/src/interfaces/question.ts
@@ -2,7 +2,7 @@ import { Question } from '../entities/questions/question.entity.js';
 import { mapToStudentDTO } from './student.js';
 import { QuestionDTO, QuestionId } from '@dwengo-1/common/interfaces/question';
 import { LearningObjectIdentifier } from '@dwengo-1/common/interfaces/learning-content';
-import { mapToGroupDTOId } from "./group";
+import { mapToGroupDTOId } from './group';
 
 function getLearningObjectIdentifier(question: Question): LearningObjectIdentifier {
     return {
diff --git a/backend/src/routes/submissions.ts b/backend/src/routes/submissions.ts
index 930e1a59..492b6439 100644
--- a/backend/src/routes/submissions.ts
+++ b/backend/src/routes/submissions.ts
@@ -1,10 +1,5 @@
 import express from 'express';
-import {
-    createSubmissionHandler,
-    deleteSubmissionHandler,
-    getSubmissionHandler,
-    getSubmissionsHandler
-} from '../controllers/submissions.js';
+import { createSubmissionHandler, deleteSubmissionHandler, getSubmissionHandler, getSubmissionsHandler } from '../controllers/submissions.js';
 const router = express.Router({ mergeParams: true });
 
 // Root endpoint used to search objects
diff --git a/backend/src/services/questions.ts b/backend/src/services/questions.ts
index 5f5c22b7..aa3e1298 100644
--- a/backend/src/services/questions.ts
+++ b/backend/src/services/questions.ts
@@ -1,9 +1,4 @@
-import {
-    getAnswerRepository, getAssignmentRepository,
-    getClassRepository,
-    getGroupRepository,
-    getQuestionRepository
-} from '../data/repositories.js';
+import { getAnswerRepository, getAssignmentRepository, getClassRepository, getGroupRepository, getQuestionRepository } from '../data/repositories.js';
 import { mapToQuestionDTO, mapToQuestionDTOId } from '../interfaces/question.js';
 import { Question } from '../entities/questions/question.entity.js';
 import { Answer } from '../entities/questions/answer.entity.js';
@@ -13,8 +8,8 @@ import { LearningObjectIdentifier } from '../entities/content/learning-object-id
 import { mapToStudent } from '../interfaces/student.js';
 import { QuestionDTO, QuestionId } from '@dwengo-1/common/interfaces/question';
 import { AnswerDTO, AnswerId } from '@dwengo-1/common/interfaces/answer';
-import { AssignmentDTO } from "@dwengo-1/common/interfaces/assignment";
-import { mapToAssignment } from "../interfaces/assignment";
+import { AssignmentDTO } from '@dwengo-1/common/interfaces/assignment';
+import { mapToAssignment } from '../interfaces/assignment';
 
 export async function getQuestionsAboutLearningObjectInAssignment(
     loId: LearningObjectIdentifier,
@@ -23,15 +18,14 @@ export async function getQuestionsAboutLearningObjectInAssignment(
     full: boolean,
     studentUsername?: string
 ): Promise<QuestionDTO[] | QuestionId[]> {
-    const assignment = await getAssignmentRepository()
-        .findByClassIdAndAssignmentId(classId, assignmentId);
+    const assignment = await getAssignmentRepository().findByClassIdAndAssignmentId(classId, assignmentId);
 
-    const questions = await getQuestionRepository()
-        .findAllQuestionsAboutLearningObjectInAssignment(loId, assignment!, studentUsername);
+    const questions = await getQuestionRepository().findAllQuestionsAboutLearningObjectInAssignment(loId, assignment!, studentUsername);
 
-    if (full)
-        {return questions.map(q => mapToQuestionDTO(q));}
-    return questions.map(q => mapToQuestionDTOId(q));
+    if (full) {
+        return questions.map((q) => mapToQuestionDTO(q));
+    }
+    return questions.map((q) => mapToQuestionDTOId(q));
 }
 
 export async function getAllQuestions(id: LearningObjectIdentifier, full: boolean): Promise<QuestionDTO[] | QuestionId[]> {
@@ -101,7 +95,7 @@ export async function createQuestion(questionDTO: QuestionDTO): Promise<Question
         version: questionDTO.learningObjectIdentifier.version ?? 1,
     };
 
-    const clazz = await getClassRepository().findById((questionDTO.inGroup.assignment as AssignmentDTO).class)
+    const clazz = await getClassRepository().findById((questionDTO.inGroup.assignment as AssignmentDTO).class);
     const assignment = mapToAssignment(questionDTO.inGroup.assignment as AssignmentDTO, clazz!);
     const inGroup = await getGroupRepository().findByAssignmentAndGroupNumber(assignment, questionDTO.inGroup.groupNumber);
 
diff --git a/backend/src/services/students.ts b/backend/src/services/students.ts
index be2d270b..960edb93 100644
--- a/backend/src/services/students.ts
+++ b/backend/src/services/students.ts
@@ -23,7 +23,7 @@ import { GroupDTO } from '@dwengo-1/common/interfaces/group';
 import { SubmissionDTO, SubmissionDTOId } from '@dwengo-1/common/interfaces/submission';
 import { QuestionDTO, QuestionId } from '@dwengo-1/common/interfaces/question';
 import { ClassJoinRequestDTO } from '@dwengo-1/common/interfaces/class-join-request';
-import {Submission} from "../entities/assignments/submission.entity";
+import { Submission } from '../entities/assignments/submission.entity';
 
 export async function getAllStudents(full: boolean): Promise<StudentDTO[] | string[]> {
     const studentRepository = getStudentRepository();
diff --git a/backend/src/services/submissions.ts b/backend/src/services/submissions.ts
index 08a19481..23659d63 100644
--- a/backend/src/services/submissions.ts
+++ b/backend/src/services/submissions.ts
@@ -1,4 +1,4 @@
-import {getAssignmentRepository, getSubmissionRepository} from '../data/repositories.js';
+import { getAssignmentRepository, getSubmissionRepository } from '../data/repositories.js';
 import { LearningObjectIdentifier } from '../entities/content/learning-object-identifier.js';
 import { mapToSubmission, mapToSubmissionDTO } from '../interfaces/submission.js';
 import { SubmissionDTO } from '@dwengo-1/common/interfaces/submission';
@@ -68,11 +68,9 @@ export async function getSubmissionsForLearningObjectAndAssignment(
     studentUsername?: string
 ): Promise<SubmissionDTO[]> {
     const loId = new LearningObjectIdentifier(learningObjectHruid, language, version);
-    const assignment = await getAssignmentRepository()
-                                                .findByClassIdAndAssignmentId(classId, assignmentId);
+    const assignment = await getAssignmentRepository().findByClassIdAndAssignmentId(classId, assignmentId);
 
-    const submissions = await getSubmissionRepository()
-                    .findAllSubmissionsForLearningObjectAndAssignment(loId, assignment!, studentUsername);
+    const submissions = await getSubmissionRepository().findAllSubmissionsForLearningObjectAndAssignment(loId, assignment!, studentUsername);
 
-    return submissions.map(s => mapToSubmissionDTO(s));
+    return submissions.map((s) => mapToSubmissionDTO(s));
 }
diff --git a/backend/tests/controllers/students.test.ts b/backend/tests/controllers/students.test.ts
index 35f9a9cf..93f35c48 100644
--- a/backend/tests/controllers/students.test.ts
+++ b/backend/tests/controllers/students.test.ts
@@ -147,7 +147,6 @@ describe('Student controllers', () => {
 
         const result = jsonMock.mock.lastCall?.[0];
         expect(result.submissions).to.have.length.greaterThan(0);
-
     });
 
     it('Student questions', async () => {
diff --git a/backend/tests/data/assignments/assignments.test.ts b/backend/tests/data/assignments/assignments.test.ts
index aad084e3..2bad08f2 100644
--- a/backend/tests/data/assignments/assignments.test.ts
+++ b/backend/tests/data/assignments/assignments.test.ts
@@ -32,10 +32,8 @@ describe('AssignmentRepository', () => {
     });
 
     it('should find all by username of the responsible teacher', async () => {
-        const result = await assignmentRepository.findAllByResponsibleTeacher("FooFighters")
-        const resultIds = result
-                                                .map(it => it.id)
-                                                .sort((a, b) => (a ?? 0) - (b ?? 0));
+        const result = await assignmentRepository.findAllByResponsibleTeacher('FooFighters');
+        const resultIds = result.map((it) => it.id).sort((a, b) => (a ?? 0) - (b ?? 0));
 
         expect(resultIds).toEqual([1, 3, 4]);
     });
diff --git a/backend/tests/data/assignments/submissions.test.ts b/backend/tests/data/assignments/submissions.test.ts
index c7920734..acc82384 100644
--- a/backend/tests/data/assignments/submissions.test.ts
+++ b/backend/tests/data/assignments/submissions.test.ts
@@ -1,6 +1,6 @@
-import {beforeAll, describe, expect, it} from 'vitest';
-import {setupTestApp} from '../../setup-tests';
-import {SubmissionRepository} from '../../../src/data/assignments/submission-repository';
+import { beforeAll, describe, expect, it } from 'vitest';
+import { setupTestApp } from '../../setup-tests';
+import { SubmissionRepository } from '../../../src/data/assignments/submission-repository';
 import {
     getAssignmentRepository,
     getClassRepository,
@@ -8,15 +8,15 @@ import {
     getStudentRepository,
     getSubmissionRepository,
 } from '../../../src/data/repositories';
-import {LearningObjectIdentifier} from '../../../src/entities/content/learning-object-identifier';
-import {Language} from '@dwengo-1/common/util/language';
-import {StudentRepository} from '../../../src/data/users/student-repository';
-import {GroupRepository} from '../../../src/data/assignments/group-repository';
-import {AssignmentRepository} from '../../../src/data/assignments/assignment-repository';
-import {ClassRepository} from '../../../src/data/classes/class-repository';
-import {Submission} from "../../../src/entities/assignments/submission.entity";
-import {Class} from "../../../src/entities/classes/class.entity";
-import {Assignment} from "../../../src/entities/assignments/assignment.entity";
+import { LearningObjectIdentifier } from '../../../src/entities/content/learning-object-identifier';
+import { Language } from '@dwengo-1/common/util/language';
+import { StudentRepository } from '../../../src/data/users/student-repository';
+import { GroupRepository } from '../../../src/data/assignments/group-repository';
+import { AssignmentRepository } from '../../../src/data/assignments/assignment-repository';
+import { ClassRepository } from '../../../src/data/classes/class-repository';
+import { Submission } from '../../../src/entities/assignments/submission.entity';
+import { Class } from '../../../src/entities/classes/class.entity';
+import { Assignment } from '../../../src/entities/assignments/assignment.entity';
 
 describe('SubmissionRepository', () => {
     let submissionRepository: SubmissionRepository;
@@ -69,9 +69,9 @@ describe('SubmissionRepository', () => {
         clazz = await classRepository.findById('id01');
         assignment = await assignmentRepository.findByClassAndId(clazz!, 1);
         loId = {
-            hruid: "id02",
+            hruid: 'id02',
             language: Language.English,
-            version: 1
+            version: 1,
         };
         const result = await submissionRepository.findAllSubmissionsForLearningObjectAndAssignment(loId, assignment!);
         sortSubmissions(result);
@@ -92,8 +92,7 @@ describe('SubmissionRepository', () => {
     });
 
     it("should find only the submissions for a certain learning object and assignment made for the user's group", async () => {
-        const result =
-            await submissionRepository.findAllSubmissionsForLearningObjectAndAssignment(loId, assignment!, "Tool");
+        const result = await submissionRepository.findAllSubmissionsForLearningObjectAndAssignment(loId, assignment!, 'Tool');
         // (student Tool is in group #2)
 
         expect(result).toHaveLength(1);
@@ -118,8 +117,12 @@ describe('SubmissionRepository', () => {
 
 function sortSubmissions(submissions: Submission[]): void {
     submissions.sort((a, b) => {
-        if (a.learningObjectHruid < b.learningObjectHruid) {return -1;}
-        if (a.learningObjectHruid > b.learningObjectHruid) {return 1;}
+        if (a.learningObjectHruid < b.learningObjectHruid) {
+            return -1;
+        }
+        if (a.learningObjectHruid > b.learningObjectHruid) {
+            return 1;
+        }
         return a.submissionNumber! - b.submissionNumber!;
     });
 }
diff --git a/backend/tests/data/questions/questions.test.ts b/backend/tests/data/questions/questions.test.ts
index e8069070..f24601bb 100644
--- a/backend/tests/data/questions/questions.test.ts
+++ b/backend/tests/data/questions/questions.test.ts
@@ -2,17 +2,18 @@ import { beforeAll, describe, expect, it } from 'vitest';
 import { setupTestApp } from '../../setup-tests';
 import { QuestionRepository } from '../../../src/data/questions/question-repository';
 import {
-    getAssignmentRepository, getClassRepository,
+    getAssignmentRepository,
+    getClassRepository,
     getGroupRepository,
     getQuestionRepository,
-    getStudentRepository
+    getStudentRepository,
 } from '../../../src/data/repositories';
 import { StudentRepository } from '../../../src/data/users/student-repository';
 import { LearningObjectIdentifier } from '../../../src/entities/content/learning-object-identifier';
 import { Language } from '@dwengo-1/common/util/language';
-import {Question} from "../../../src/entities/questions/question.entity";
-import {Class} from "../../../src/entities/classes/class.entity";
-import {Assignment} from "../../../src/entities/assignments/assignment.entity";
+import { Question } from '../../../src/entities/questions/question.entity';
+import { Class } from '../../../src/entities/classes/class.entity';
+import { Assignment } from '../../../src/entities/assignments/assignment.entity';
 
 describe('QuestionRepository', () => {
     let questionRepository: QuestionRepository;
@@ -36,7 +37,7 @@ describe('QuestionRepository', () => {
         const id = new LearningObjectIdentifier('id03', Language.English, 1);
         const student = await studentRepository.findByUsername('Noordkaap');
 
-        const clazz = await getClassRepository().findById("id01");
+        const clazz = await getClassRepository().findById('id01');
         const assignment = await getAssignmentRepository().findByClassAndId(clazz!, 1);
         const group = await getGroupRepository().findByAssignmentAndGroupNumber(assignment!, 1);
         await questionRepository.createQuestion({
@@ -58,9 +59,9 @@ describe('QuestionRepository', () => {
         clazz = await getClassRepository().findById('id01');
         assignment = await getAssignmentRepository().findByClassAndId(clazz!, 1);
         loId = {
-            hruid: "id05",
+            hruid: 'id05',
             language: Language.English,
-            version: 1
+            version: 1,
         };
         const result = await questionRepository.findAllQuestionsAboutLearningObjectInAssignment(loId, assignment!);
         sortQuestions(result);
@@ -83,8 +84,7 @@ describe('QuestionRepository', () => {
     });
 
     it("should find only the questions for a certain learning object and assignment asked by the user's group", async () => {
-        const result =
-            await questionRepository.findAllQuestionsAboutLearningObjectInAssignment(loId, assignment!, "Tool");
+        const result = await questionRepository.findAllQuestionsAboutLearningObjectInAssignment(loId, assignment!, 'Tool');
         // (student Tool is in group #2)
 
         expect(result).toHaveLength(1);
@@ -110,8 +110,11 @@ describe('QuestionRepository', () => {
 
 function sortQuestions(questions: Question[]): void {
     questions.sort((a, b) => {
-        if (a.learningObjectHruid < b.learningObjectHruid) {return -1}
-        else if (a.learningObjectHruid > b.learningObjectHruid) {return 1}
-        return a.sequenceNumber! - b.sequenceNumber!
+        if (a.learningObjectHruid < b.learningObjectHruid) {
+            return -1;
+        } else if (a.learningObjectHruid > b.learningObjectHruid) {
+            return 1;
+        }
+        return a.sequenceNumber! - b.sequenceNumber!;
     });
 }
diff --git a/backend/tests/services/learning-path/database-learning-path-provider.test.ts b/backend/tests/services/learning-path/database-learning-path-provider.test.ts
index 2c7ceb0b..0a0370a3 100644
--- a/backend/tests/services/learning-path/database-learning-path-provider.test.ts
+++ b/backend/tests/services/learning-path/database-learning-path-provider.test.ts
@@ -25,9 +25,9 @@ import { Student } from '../../../src/entities/users/student.entity.js';
 
 import { LearningObjectNode, LearningPathResponse } from '@dwengo-1/common/interfaces/learning-content';
 
-const STUDENT_A_USERNAME = "student_a";
-const STUDENT_B_USERNAME = "student_b";
-const CLASS_NAME = "test_class"
+const STUDENT_A_USERNAME = 'student_a';
+const STUDENT_B_USERNAME = 'student_b';
+const CLASS_NAME = 'test_class';
 
 async function initExampleData(): Promise<{ learningObject: LearningObject; learningPath: LearningPath }> {
     const learningObjectRepo = getLearningObjectRepository();
@@ -44,7 +44,7 @@ async function initPersonalizationTestData(): Promise<{
     studentA: Student;
     studentB: Student;
 }> {
-    const studentRepo = getStudentRepository()
+    const studentRepo = getStudentRepository();
     const classRepo = getClassRepository();
     const assignmentRepo = getAssignmentRepository();
     const groupRepo = getGroupRepository();
@@ -75,31 +75,31 @@ async function initPersonalizationTestData(): Promise<{
     // Create class for students
     const testClass = classRepo.create({
         classId: CLASS_NAME,
-        displayName: "Test class"
+        displayName: 'Test class',
     });
     await classRepo.save(testClass);
 
     // Create assignment for students and assign them to different groups
     const assignment = assignmentRepo.create({
         id: 0,
-        title: "Test assignment",
-        description: "Test description",
+        title: 'Test assignment',
+        description: 'Test description',
         learningPathHruid: learningContent.learningPath.hruid,
         learningPathLanguage: learningContent.learningPath.language,
-        within: testClass
-    })
+        within: testClass,
+    });
 
     const groupA = groupRepo.create({
         groupNumber: 0,
         members: [studentA],
-        assignment
+        assignment,
     });
     await groupRepo.save(groupA);
 
     const groupB = groupRepo.create({
         groupNumber: 1,
         members: [studentB],
-        assignment
+        assignment,
     });
     await groupRepo.save(groupB);
 
diff --git a/backend/tests/test_assets/questions/questions.testdata.ts b/backend/tests/test_assets/questions/questions.testdata.ts
index 1e4a37ef..10a04571 100644
--- a/backend/tests/test_assets/questions/questions.testdata.ts
+++ b/backend/tests/test_assets/questions/questions.testdata.ts
@@ -2,7 +2,7 @@ import { EntityManager } from '@mikro-orm/core';
 import { Question } from '../../../src/entities/questions/question.entity';
 import { Language } from '@dwengo-1/common/util/language';
 import { Student } from '../../../src/entities/users/student.entity';
-import {Group} from "../../../src/entities/assignments/group.entity";
+import { Group } from '../../../src/entities/assignments/group.entity';
 
 export function makeTestQuestions(em: EntityManager, students: Student[], groups: Group[]): Question[] {
     const question01 = em.create(Question, {
diff --git a/common/src/interfaces/question.ts b/common/src/interfaces/question.ts
index 9b00e1bd..bd689c34 100644
--- a/common/src/interfaces/question.ts
+++ b/common/src/interfaces/question.ts
@@ -1,6 +1,6 @@
 import { LearningObjectIdentifier } from './learning-content';
 import { StudentDTO } from './student';
-import {GroupDTO} from "./group";
+import { GroupDTO } from './group';
 
 export interface QuestionDTO {
     learningObjectIdentifier: LearningObjectIdentifier;