diff --git a/backend/src/collections/imagedb/imagedb.service.ts b/backend/src/collections/imagedb/imagedb.service.ts
index ab5a827..d7e67b1 100644
--- a/backend/src/collections/imagedb/imagedb.service.ts
+++ b/backend/src/collections/imagedb/imagedb.service.ts
@@ -1,6 +1,5 @@
 import { Injectable } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
-import { plainToClass } from 'class-transformer';
 import Crypto from 'crypto';
 import {
   AsyncFailable,
@@ -36,8 +35,7 @@ export class ImageDBService {
       return Fail(e?.message);
     }
 
-    // Strips unwanted data
-    return plainToClass(EImageBackend, imageEntity);
+    return imageEntity;
   }
 
   public async findOne<B extends true | undefined = undefined>(
diff --git a/backend/src/collections/roledb/roledb.service.ts b/backend/src/collections/roledb/roledb.service.ts
index 4eebf99..a261c84 100644
--- a/backend/src/collections/roledb/roledb.service.ts
+++ b/backend/src/collections/roledb/roledb.service.ts
@@ -52,10 +52,7 @@ export class RolesService {
     }
 
     try {
-      // Makes sure we can return the id
-      const cloned = plainToClass(ERoleBackend, roleToModify);
-      await this.rolesRepository.remove(roleToModify);
-      return cloned;
+      return await this.rolesRepository.remove(roleToModify);
     } catch (e: any) {
       return Fail(e?.message);
     }
diff --git a/backend/src/collections/syspreferencesdb/syspreferencedb.service.ts b/backend/src/collections/syspreferencesdb/syspreferencedb.service.ts
index b8a25d7..8d61f09 100644
--- a/backend/src/collections/syspreferencesdb/syspreferencedb.service.ts
+++ b/backend/src/collections/syspreferencesdb/syspreferencedb.service.ts
@@ -1,10 +1,11 @@
 import { Injectable, Logger } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
-import { PrefValueType, PrefValueTypeStrings } from 'picsur-shared/dist/dto/preferences.dto';
 import {
-  InternalSysPrefRepresentation,
-  SysPreference
-} from 'picsur-shared/dist/dto/syspreferences.dto';
+  DecodedSysPref,
+  PrefValueType,
+  PrefValueTypeStrings
+} from 'picsur-shared/dist/dto/preferences.dto';
+import { SysPreference } from 'picsur-shared/dist/dto/syspreferences.dto';
 import {
   AsyncFailable,
   Fail,
@@ -33,7 +34,7 @@ export class SysPreferenceService {
   public async setPreference(
     key: string,
     value: PrefValueType,
-  ): AsyncFailable<InternalSysPrefRepresentation> {
+  ): AsyncFailable<DecodedSysPref> {
     // Validate
     let sysPreference = await this.validatePref(key, value);
     if (HasFailed(sysPreference)) return sysPreference;
@@ -58,9 +59,7 @@ export class SysPreferenceService {
     };
   }
 
-  public async getPreference(
-    key: string,
-  ): AsyncFailable<InternalSysPrefRepresentation> {
+  public async getPreference(key: string): AsyncFailable<DecodedSysPref> {
     // Validate
     let validatedKey = this.validatePrefKey(key);
     if (HasFailed(validatedKey)) return validatedKey;
@@ -116,9 +115,7 @@ export class SysPreferenceService {
     return pref.value;
   }
 
-  public async getAllPreferences(): AsyncFailable<
-    InternalSysPrefRepresentation[]
-  > {
+  public async getAllPreferences(): AsyncFailable<DecodedSysPref[]> {
     // TODO: We are fetching each value invidually, we should fetch all at once
     let internalSysPrefs = await Promise.all(
       SysPreferenceList.map((key) => this.getPreference(key)),
@@ -127,21 +124,21 @@ export class SysPreferenceService {
       return Fail('Could not get all preferences');
     }
 
-    return internalSysPrefs as InternalSysPrefRepresentation[];
+    return internalSysPrefs as DecodedSysPref[];
   }
 
   // Private
 
   private async saveDefault(
     key: SysPreference, // Force enum here because we dont validate
-  ): AsyncFailable<InternalSysPrefRepresentation> {
+  ): AsyncFailable<DecodedSysPref> {
     return this.setPreference(key, this.defaultsService.sysDefaults[key]());
   }
 
   // This converts the raw string representation of the value to the correct type
   private retrieveConvertedValue(
     preference: ESysPreferenceBackend,
-  ): Failable<InternalSysPrefRepresentation> {
+  ): Failable<DecodedSysPref> {
     const key = this.validatePrefKey(preference.key);
     if (HasFailed(key)) return key;
 
diff --git a/backend/src/collections/userdb/userdb.service.ts b/backend/src/collections/userdb/userdb.service.ts
index 3c50045..ee1a225 100644
--- a/backend/src/collections/userdb/userdb.service.ts
+++ b/backend/src/collections/userdb/userdb.service.ts
@@ -53,7 +53,7 @@ export class UsersService {
 
     let user = new EUserBackend();
     user.username = username;
-    user.password = hashedPassword;
+    user.hashedPassword = hashedPassword;
     if (byPassRoleCheck) {
       const rolesToAdd = roles ?? [];
       user.roles = makeUnique(rolesToAdd);
@@ -64,13 +64,10 @@ export class UsersService {
     }
 
     try {
-      user = await this.usersRepository.save(user, { reload: true });
+      return await this.usersRepository.save(user);
     } catch (e: any) {
       return Fail(e?.message);
     }
-
-    // Strips unwanted data
-    return plainToClass(EUserBackend, user);
   }
 
   public async delete(uuid: string): AsyncFailable<EUserBackend> {
@@ -153,8 +150,7 @@ export class UsersService {
     if (HasFailed(userToModify)) return userToModify;
 
     const strength = await this.getBCryptStrength();
-    const hashedPassword = await bcrypt.hash(password, strength);
-    userToModify.password = hashedPassword;
+    userToModify.hashedPassword = await bcrypt.hash(password, strength);
 
     try {
       userToModify = await this.usersRepository.save(userToModify);
@@ -180,7 +176,7 @@ export class UsersService {
       return Fail('Wrong username');
     }
 
-    if (!(await bcrypt.compare(password, user.password)))
+    if (!(await bcrypt.compare(password, user.hashedPassword)))
       return Fail('Wrong password');
 
     return await this.findOne(user.id);
@@ -199,7 +195,11 @@ export class UsersService {
     try {
       const found = await this.usersRepository.findOne({
         where: { username },
-        select: getPrivate ? GetCols(this.usersRepository) : undefined,
+        ...(getPrivate
+          ? {
+              select: GetCols(this.usersRepository),
+            }
+          : {}),
       });
 
       if (!found) return Fail('User not found');
diff --git a/backend/src/managers/auth/guards/main.guard.ts b/backend/src/managers/auth/guards/main.guard.ts
index c746408..581eceb 100644
--- a/backend/src/managers/auth/guards/main.guard.ts
+++ b/backend/src/managers/auth/guards/main.guard.ts
@@ -41,6 +41,10 @@ export class MainAuthGuard extends AuthGuard(['jwt', 'guest']) {
     const user = await this.validateUser(
       context.switchToHttp().getRequest().user,
     );
+    if (!user.id) {
+      this.logger.error('User has no id, this should not happen');
+      throw new InternalServerErrorException();
+    }
 
     // These are the permissions required to access the route
     const permissions = this.extractPermissions(context);
diff --git a/backend/src/models/entities/image.entity.ts b/backend/src/models/entities/image.entity.ts
index a869f56..6a0f57e 100644
--- a/backend/src/models/entities/image.entity.ts
+++ b/backend/src/models/entities/image.entity.ts
@@ -1,19 +1,23 @@
+import { IsNotEmpty, IsOptional } from 'class-validator';
 import { EImage } from 'picsur-shared/dist/entities/image.entity';
 import { Column, Entity, Index, PrimaryGeneratedColumn } from 'typeorm';
 
 @Entity()
 export class EImageBackend extends EImage {
-  @PrimaryGeneratedColumn("uuid")
-  override id: string;
+  @PrimaryGeneratedColumn('uuid')
+  override id?: string;
 
   @Index()
   @Column({ unique: true, nullable: false })
   override hash: string;
 
-  // Binary data
-  @Column({ type: 'bytea', nullable: false, select: false })
-  override data?: Buffer;
-
   @Column({ nullable: false })
   override mime: string;
+
+  // Binary data
+  @Column({ type: 'bytea', nullable: false, select: false })
+  @IsOptional()
+  @IsNotEmpty()
+  // @ts-ignore
+  override data?: Buffer;
 }
diff --git a/backend/src/models/entities/role.entity.ts b/backend/src/models/entities/role.entity.ts
index 2cd21ea..0632857 100644
--- a/backend/src/models/entities/role.entity.ts
+++ b/backend/src/models/entities/role.entity.ts
@@ -5,7 +5,7 @@ import { Permissions } from '../dto/permissions.dto';
 @Entity()
 export class ERoleBackend extends ERole {
   @PrimaryGeneratedColumn("uuid")
-  override id: string;
+  override id?: string;
 
   @Index()
   @Column({ nullable: false, unique: true })
diff --git a/backend/src/models/entities/user.entity.ts b/backend/src/models/entities/user.entity.ts
index 9d14bf8..8079833 100644
--- a/backend/src/models/entities/user.entity.ts
+++ b/backend/src/models/entities/user.entity.ts
@@ -1,3 +1,4 @@
+import { IsOptional, IsString } from 'class-validator';
 import { EUser } from 'picsur-shared/dist/entities/user.entity';
 import { Column, Entity, Index, PrimaryGeneratedColumn } from 'typeorm';
 
@@ -6,7 +7,7 @@ import { Column, Entity, Index, PrimaryGeneratedColumn } from 'typeorm';
 @Entity()
 export class EUserBackend extends EUser {
   @PrimaryGeneratedColumn("uuid")
-  override id: string;
+  override id?: string;
 
   @Index()
   @Column({ nullable: false, unique: true })
@@ -16,5 +17,9 @@ export class EUserBackend extends EUser {
   override roles: string[];
 
   @Column({ nullable: false, select: false })
-  override password?: string;
+  @IsOptional()
+  @IsString()
+  // @ts-ignore
+  override hashedPassword?: string;
 }
+
diff --git a/backend/src/models/transformers/image.transformer.ts b/backend/src/models/transformers/image.transformer.ts
new file mode 100644
index 0000000..b13ed3f
--- /dev/null
+++ b/backend/src/models/transformers/image.transformer.ts
@@ -0,0 +1,14 @@
+import { EImage } from 'picsur-shared/dist/entities/image.entity';
+import { EImageBackend } from '../entities/image.entity';
+
+export function EImageBackend2EImage(
+  eImage: EImageBackend,
+): EImage {
+  if (eImage.data === undefined) 
+    return eImage as EImage;
+
+  return {
+    ...eImage,
+    data: undefined,
+  };
+}
diff --git a/backend/src/models/transformers/user.transformer.ts b/backend/src/models/transformers/user.transformer.ts
new file mode 100644
index 0000000..5e832a6
--- /dev/null
+++ b/backend/src/models/transformers/user.transformer.ts
@@ -0,0 +1,14 @@
+import { EUser } from 'picsur-shared/dist/entities/user.entity';
+import { EUserBackend } from '../entities/user.entity';
+
+export function EUserBackend2EUser(
+  eUser: EUserBackend,
+): EUser {
+  if (eUser.hashedPassword === undefined) 
+    return eUser as EUser;
+
+  return {
+    ...eUser,
+    hashedPassword: undefined,
+  };
+}
diff --git a/backend/src/routes/api/user/user.controller.ts b/backend/src/routes/api/user/user.controller.ts
index f3de767..e45d204 100644
--- a/backend/src/routes/api/user/user.controller.ts
+++ b/backend/src/routes/api/user/user.controller.ts
@@ -24,6 +24,7 @@ import {
 import { AuthManagerService } from '../../../managers/auth/auth.service';
 import { Permission } from '../../../models/dto/permissions.dto';
 import AuthFasityRequest from '../../../models/requests/authrequest.dto';
+import { EUserBackend2EUser } from '../../../models/transformers/user.transformer';
 
 @Controller('api/user')
 export class UserController {
@@ -60,12 +61,14 @@ export class UserController {
       throw new InternalServerErrorException('Could not register user');
     }
 
-    return user;
+    return EUserBackend2EUser(user);
   }
 
   @Get('me')
   @RequiredPermissions(Permission.UserKeepLogin)
   async me(@Request() req: AuthFasityRequest): Promise<UserMeResponse> {
+    if (!req.user.id) throw new InternalServerErrorException('User is corrupt');
+
     const user = await this.usersService.findOne(req.user.id);
 
     if (HasFailed(user)) {
@@ -79,7 +82,7 @@ export class UserController {
       throw new InternalServerErrorException('Could not get new token');
     }
 
-    return { user, token };
+    return { user: EUserBackend2EUser(user), token };
   }
 
   // You can always check your permissions
@@ -88,6 +91,8 @@ export class UserController {
   async refresh(
     @Request() req: AuthFasityRequest,
   ): Promise<UserMePermissionsResponse> {
+    if (!req.user.id) throw new InternalServerErrorException('User is corrupt');
+
     const permissions = await this.usersService.getPermissions(req.user.id);
     if (HasFailed(permissions)) {
       this.logger.warn(permissions.getReason());
diff --git a/backend/src/routes/api/user/usermanage.controller.ts b/backend/src/routes/api/user/usermanage.controller.ts
index fc117a5..88e968d 100644
--- a/backend/src/routes/api/user/usermanage.controller.ts
+++ b/backend/src/routes/api/user/usermanage.controller.ts
@@ -24,7 +24,12 @@ import { HasFailed } from 'picsur-shared/dist/types';
 import { UsersService } from '../../../collections/userdb/userdb.service';
 import { RequiredPermissions } from '../../../decorators/permissions.decorator';
 import { Permission } from '../../../models/dto/permissions.dto';
-import { ImmutableUsersList, LockedLoginUsersList, UndeletableUsersList } from '../../../models/dto/specialusers.dto';
+import {
+  ImmutableUsersList,
+  LockedLoginUsersList,
+  UndeletableUsersList
+} from '../../../models/dto/specialusers.dto';
+import { EUserBackend2EUser } from '../../../models/transformers/user.transformer';
 
 @Controller('api/user')
 @RequiredPermissions(Permission.UserManage)
@@ -53,7 +58,7 @@ export class UserManageController {
     }
 
     return {
-      users,
+      users: users.map(EUserBackend2EUser),
       count: users.length,
       page: body.page,
     };
@@ -73,20 +78,18 @@ export class UserManageController {
       throw new InternalServerErrorException('Could not create user');
     }
 
-    return user;
+    return EUserBackend2EUser(user);
   }
 
   @Post('delete')
-  async delete(
-    @Body() body: UserDeleteRequest,
-  ): Promise<UserDeleteResponse> {
+  async delete(@Body() body: UserDeleteRequest): Promise<UserDeleteResponse> {
     const user = await this.usersService.delete(body.id);
     if (HasFailed(user)) {
       this.logger.warn(user.getReason());
       throw new InternalServerErrorException('Could not delete user');
     }
 
-    return user;
+    return EUserBackend2EUser(user);
   }
 
   @Post('info')
@@ -97,7 +100,7 @@ export class UserManageController {
       throw new InternalServerErrorException('Could not find user');
     }
 
-    return user;
+    return EUserBackend2EUser(user);
   }
 
   @Post('update')
@@ -111,7 +114,7 @@ export class UserManageController {
     }
 
     if (body.roles) {
-      user = await this.usersService.setRoles(user.id, body.roles);
+      user = await this.usersService.setRoles(body.id, body.roles);
       if (HasFailed(user)) {
         this.logger.warn(user.getReason());
         throw new InternalServerErrorException('Could not update user');
@@ -119,14 +122,14 @@ export class UserManageController {
     }
 
     if (body.password) {
-      user = await this.usersService.updatePassword(user.id, body.password);
+      user = await this.usersService.updatePassword(body.id, body.password);
       if (HasFailed(user)) {
         this.logger.warn(user.getReason());
         throw new InternalServerErrorException('Could not update user');
       }
     }
 
-    return user;
+    return EUserBackend2EUser(user);
   }
 
   @Get('special')
diff --git a/backend/src/routes/image/imageroute.controller.ts b/backend/src/routes/image/imageroute.controller.ts
index 61a5eb0..f04be4d 100644
--- a/backend/src/routes/image/imageroute.controller.ts
+++ b/backend/src/routes/image/imageroute.controller.ts
@@ -1,11 +1,12 @@
 import {
-  Controller,
-  Get,
-  InternalServerErrorException,
-  Logger,
-  NotFoundException,
-  Param,
-  Post, Res
+    Controller,
+    Get,
+    InternalServerErrorException,
+    Logger,
+    NotFoundException,
+    Param,
+    Post,
+    Res
 } from '@nestjs/common';
 import { FastifyReply } from 'fastify';
 import { ImageMetaResponse } from 'picsur-shared/dist/dto/api/image.dto';
@@ -15,6 +16,7 @@ import { RequiredPermissions } from '../../decorators/permissions.decorator';
 import { ImageManagerService } from '../../managers/imagemanager/imagemanager.service';
 import { Permission } from '../../models/dto/permissions.dto';
 import { ImageUploadDto } from '../../models/requests/imageroute.dto';
+import { EImageBackend2EImage } from '../../models/transformers/image.transformer';
 import { ImageIdValidator } from './imageid.validator';
 
 // This is the only controller with CORS enabled
@@ -52,7 +54,7 @@ export class ImageController {
       throw new NotFoundException('Could not find image');
     }
 
-    return image;
+    return EImageBackend2EImage(image);
   }
 
   @Post()
@@ -67,6 +69,6 @@ export class ImageController {
       throw new InternalServerErrorException('Could not upload image');
     }
 
-    return image;
+    return EImageBackend2EImage(image);
   }
 }
diff --git a/frontend/src/app/routes/settings/syspref/settings-syspref.component.ts b/frontend/src/app/routes/settings/syspref/settings-syspref.component.ts
index e8f69ae..beb237e 100644
--- a/frontend/src/app/routes/settings/syspref/settings-syspref.component.ts
+++ b/frontend/src/app/routes/settings/syspref/settings-syspref.component.ts
@@ -1,5 +1,5 @@
 import { Component } from '@angular/core';
-import { SysPreferenceBaseResponse } from 'picsur-shared/dist/dto/api/syspref.dto';
+import { DecodedSysPref } from 'picsur-shared/dist/dto/preferences.dto';
 import { Observable } from 'rxjs';
 import { SysprefService as SysPrefService } from 'src/app/services/api/syspref.service';
 
@@ -7,7 +7,7 @@ import { SysprefService as SysPrefService } from 'src/app/services/api/syspref.s
   templateUrl: './settings-syspref.component.html',
 })
 export class SettingsSysprefComponent {
-  preferences: Observable<SysPreferenceBaseResponse[]>;
+  preferences: Observable<DecodedSysPref[]>;
 
   constructor(sysprefService: SysPrefService) {
     this.preferences = sysprefService.live;
diff --git a/frontend/src/app/routes/settings/syspref/syspref-option/settings-syspref-option.component.ts b/frontend/src/app/routes/settings/syspref/syspref-option/settings-syspref-option.component.ts
index 6b75449..489f11c 100644
--- a/frontend/src/app/routes/settings/syspref/syspref-option/settings-syspref-option.component.ts
+++ b/frontend/src/app/routes/settings/syspref/syspref-option/settings-syspref-option.component.ts
@@ -1,7 +1,6 @@
 import { Component, Input, OnInit } from '@angular/core';
 import { AutoUnsubscribe } from 'ngx-auto-unsubscribe-decorator';
-import { SysPreferenceBaseResponse } from 'picsur-shared/dist/dto/api/syspref.dto';
-import { PrefValueType } from 'picsur-shared/dist/dto/preferences.dto';
+import { DecodedSysPref, PrefValueType } from 'picsur-shared/dist/dto/preferences.dto';
 import { SysPreference } from 'picsur-shared/dist/dto/syspreferences.dto';
 import { HasFailed } from 'picsur-shared/dist/types';
 import { Subject, throttleTime } from 'rxjs';
@@ -16,7 +15,7 @@ import { UtilService } from 'src/app/util/util.service';
   styleUrls: ['./settings-syspref-option.component.scss'],
 })
 export class SettingsSysprefOptionComponent implements OnInit {
-  @Input() pref: SysPreferenceBaseResponse;
+  @Input() pref: DecodedSysPref;
 
   private updateSubject = new Subject<PrefValueType>();
 
diff --git a/frontend/src/app/routes/settings/users/settings-users.component.ts b/frontend/src/app/routes/settings/users/settings-users.component.ts
index 9420c93..c432834 100644
--- a/frontend/src/app/routes/settings/users/settings-users.component.ts
+++ b/frontend/src/app/routes/settings/users/settings-users.component.ts
@@ -73,7 +73,7 @@ export class SettingsUsersComponent implements OnInit {
     });
 
     if (pressedButton === 'delete') {
-      const result = await this.userManageService.deleteUser(user.id);
+      const result = await this.userManageService.deleteUser(user.id ?? '');
       if (HasFailed(result)) {
         this.utilService.showSnackBar(
           'Failed to delete user',
diff --git a/frontend/src/app/services/api/syspref.service.ts b/frontend/src/app/services/api/syspref.service.ts
index 8057082..5f79204 100644
--- a/frontend/src/app/services/api/syspref.service.ts
+++ b/frontend/src/app/services/api/syspref.service.ts
@@ -3,12 +3,11 @@ import { AutoUnsubscribe } from 'ngx-auto-unsubscribe-decorator';
 import {
   GetSyspreferenceResponse,
   MultipleSysPreferencesResponse,
-  SysPreferenceBaseResponse,
   UpdateSysPreferenceRequest,
   UpdateSysPreferenceResponse
 } from 'picsur-shared/dist/dto/api/syspref.dto';
 import { Permission } from 'picsur-shared/dist/dto/permissions.dto';
-import { PrefValueType } from 'picsur-shared/dist/dto/preferences.dto';
+import { DecodedSysPref, PrefValueType } from 'picsur-shared/dist/dto/preferences.dto';
 import { AsyncFailable, Fail, HasFailed, Map } from 'picsur-shared/dist/types';
 import { BehaviorSubject } from 'rxjs';
 import { SnackBarType } from 'src/app/models/dto/snack-bar-type.dto';
@@ -25,7 +24,7 @@ export class SysprefService {
 
   private hasPermission = false;
 
-  private sysprefObservable = new BehaviorSubject<SysPreferenceBaseResponse[]>(
+  private sysprefObservable = new BehaviorSubject<DecodedSysPref[]>(
     []
   );
 
@@ -57,7 +56,7 @@ export class SysprefService {
     }
   }
 
-  public async getPreferences(): AsyncFailable<SysPreferenceBaseResponse[]> {
+  public async getPreferences(): AsyncFailable<DecodedSysPref[]> {
     if (!this.hasPermission)
       return Fail('You do not have permission to edit system preferences');
 
@@ -105,7 +104,7 @@ export class SysprefService {
     return response;
   }
 
-  private updatePrefArray(pref: SysPreferenceBaseResponse) {
+  private updatePrefArray(pref: DecodedSysPref) {
     const prefArray = this.snapshot;
     // Replace the old pref with the new one
     const index = prefArray.findIndex((i) => pref.key === i.key);
diff --git a/shared/src/dto/api/api.dto.ts b/shared/src/dto/api/api.dto.ts
index 1d5b262..c41eae2 100644
--- a/shared/src/dto/api/api.dto.ts
+++ b/shared/src/dto/api/api.dto.ts
@@ -1,7 +1,5 @@
 import {
-  IsBoolean,
-  IsDefined,
-  IsInt,
+  IsBoolean, IsInt,
   IsNotEmpty,
   IsString,
   Max,
@@ -10,21 +8,17 @@ import {
 
 class BaseApiResponse<T extends Object, W extends boolean> {
   @IsBoolean()
-  @IsDefined()
   success: W;
 
   @IsInt()
   @Min(0)
   @Max(1000)
-  @IsDefined()
   statusCode: number;
 
   @IsString()
-  @IsNotEmpty()
   timestamp: string;
 
-  //@ValidateNested()
-  @IsDefined()
+  @IsNotEmpty()
   data: T;
 }
 
@@ -35,7 +29,6 @@ export class ApiSuccessResponse<T extends Object> extends BaseApiResponse<
 
 export class ApiErrorData {
   @IsString()
-  @IsNotEmpty()
   message: string;
 }
 export class ApiErrorResponse extends BaseApiResponse<ApiErrorData, false> {}
diff --git a/shared/src/dto/api/info.dto.ts b/shared/src/dto/api/info.dto.ts
index 0984a99..4feca98 100644
--- a/shared/src/dto/api/info.dto.ts
+++ b/shared/src/dto/api/info.dto.ts
@@ -1,24 +1,19 @@
-import { IsBoolean, IsDefined, IsSemVer, IsString } from 'class-validator';
+import { IsBoolean, IsSemVer } from 'class-validator';
 import { IsStringList } from '../../validators/string-list.validator';
 
 export class InfoResponse {
   @IsBoolean()
-  @IsDefined()
   production: boolean;
 
   @IsBoolean()
-  @IsDefined()
   demo: boolean;
 
-  @IsDefined()
-  @IsString()
   @IsSemVer()
   version: string;
 }
 
 // AllPermissions
 export class AllPermissionsResponse {
-  @IsDefined()
   @IsStringList()
   permissions: string[];
 }
diff --git a/shared/src/dto/api/roles.dto.ts b/shared/src/dto/api/roles.dto.ts
index 76c19bf..ef3e822 100644
--- a/shared/src/dto/api/roles.dto.ts
+++ b/shared/src/dto/api/roles.dto.ts
@@ -1,23 +1,21 @@
-import { Type } from 'class-transformer';
-import { IsArray, IsDefined, ValidateNested } from 'class-validator';
-import {
-  ERole,
-  RoleNameObject,
-  RoleNamePermsObject
-} from '../../entities/role.entity';
+import { IsArray } from 'class-validator';
+import { ERole, SimpleRole } from '../../entities/role.entity';
+import { IsNested } from '../../validators/nested.validator';
 import { IsPosInt } from '../../validators/positive-int.validator';
+import { IsRoleName } from '../../validators/role.validators';
 import { IsStringList } from '../../validators/string-list.validator';
 
 // RoleInfo
-export class RoleInfoRequest extends RoleNameObject {}
+export class RoleInfoRequest {
+  @IsRoleName()
+  name: string;
+}
 export class RoleInfoResponse extends ERole {}
 
 // RoleList
 export class RoleListResponse {
   @IsArray()
-  @IsDefined()
-  @ValidateNested()
-  @Type(() => ERole)
+  @IsNested(ERole)
   roles: ERole[];
 
   @IsPosInt()
@@ -25,32 +23,31 @@ export class RoleListResponse {
 }
 
 // RoleUpdate
-export class RoleUpdateRequest extends RoleNamePermsObject {}
+export class RoleUpdateRequest extends SimpleRole {}
 export class RoleUpdateResponse extends ERole {}
 
 // RoleCreate
-export class RoleCreateRequest extends RoleNamePermsObject {}
+export class RoleCreateRequest extends SimpleRole {}
 export class RoleCreateResponse extends ERole {}
 
 // RoleDelete
-export class RoleDeleteRequest extends RoleNameObject {}
+export class RoleDeleteRequest {
+  @IsRoleName()
+  name: string;
+}
 export class RoleDeleteResponse extends ERole {}
 
 // SpecialRoles
 export class SpecialRolesResponse {
-  @IsDefined()
   @IsStringList()
   SoulBoundRoles: string[];
 
-  @IsDefined()
   @IsStringList()
   ImmutableRoles: string[];
 
-  @IsDefined()
   @IsStringList()
   UndeletableRoles: string[];
 
-  @IsDefined()
   @IsStringList()
   DefaultRoles: string[];
 }
diff --git a/shared/src/dto/api/syspref.dto.ts b/shared/src/dto/api/syspref.dto.ts
index f6b899a..9744f3d 100644
--- a/shared/src/dto/api/syspref.dto.ts
+++ b/shared/src/dto/api/syspref.dto.ts
@@ -1,36 +1,21 @@
-import { Type } from 'class-transformer';
 import {
-  IsArray, IsEnum, IsNotEmpty, IsString, ValidateNested
+  IsArray
 } from 'class-validator';
+import { IsNested } from '../../validators/nested.validator';
 import { IsPosInt } from '../../validators/positive-int.validator';
-import { IsSysPrefValue } from '../../validators/syspref.validator';
-import { PrefValueType, PrefValueTypes, PrefValueTypeStrings } from '../preferences.dto';
+import { IsPrefValue } from '../../validators/pref-value.validator';
+import { DecodedSysPref, PrefValueType } from '../preferences.dto';
 
-export class SysPreferenceBaseResponse {
-  @IsNotEmpty()
-  @IsString()
-  key: string;
-
-  @IsNotEmpty()
-  @IsSysPrefValue()
-  value: PrefValueType;
-
-  @IsNotEmpty()
-  @IsEnum(PrefValueTypes)
-  type: PrefValueTypeStrings;
-}
 
 // Get Syspreference
 // Request is done via url parameters
-export class GetSyspreferenceResponse extends SysPreferenceBaseResponse {}
+export class GetSyspreferenceResponse extends DecodedSysPref {}
 
 // Get syspreferences
 export class MultipleSysPreferencesResponse {
   @IsArray()
-  @IsNotEmpty()
-  @ValidateNested({ each: true })
-  @Type(() => SysPreferenceBaseResponse)
-  preferences: SysPreferenceBaseResponse[];
+  @IsNested(DecodedSysPref)
+  preferences: DecodedSysPref[];
 
   @IsPosInt()
   total: number;
@@ -38,10 +23,9 @@ export class MultipleSysPreferencesResponse {
 
 // Update Syspreference
 export class UpdateSysPreferenceRequest {
-  @IsNotEmpty()
-  @IsSysPrefValue()
+  @IsPrefValue()
   value: PrefValueType;
 }
-export class UpdateSysPreferenceResponse extends SysPreferenceBaseResponse {}
+export class UpdateSysPreferenceResponse extends DecodedSysPref {}
 
 
diff --git a/shared/src/dto/api/user.dto.ts b/shared/src/dto/api/user.dto.ts
index 009f3e1..8100993 100644
--- a/shared/src/dto/api/user.dto.ts
+++ b/shared/src/dto/api/user.dto.ts
@@ -1,45 +1,47 @@
-import { Type } from 'class-transformer';
 import {
-  IsDefined, IsJWT,
-  IsString,
-  ValidateNested
+  IsJWT
 } from 'class-validator';
-import { EUser, NamePassUser } from '../../entities/user.entity';
+import { EUser } from '../../entities/user.entity';
+import { IsNested } from '../../validators/nested.validator';
 import { IsStringList } from '../../validators/string-list.validator';
+import { IsPlainTextPwd, IsUsername } from '../../validators/user.validators';
 
 // Api
 
 // UserLogin
-export class UserLoginRequest extends NamePassUser {}
+export class UserLoginRequest {
+  @IsUsername()
+  username: string;
 
+  @IsPlainTextPwd()
+  password: string;
+}
 export class UserLoginResponse {
-  @IsString()
-  @IsDefined()
   @IsJWT()
   jwt_token: string;
 }
 
 // UserRegister
-export class UserRegisterRequest extends NamePassUser {}
+export class UserRegisterRequest {
+  @IsUsername()
+  username: string;
 
+  @IsPlainTextPwd()
+  password: string;
+}
 export class UserRegisterResponse extends EUser {}
 
 // UserMe
 export class UserMeResponse {
-  @IsDefined()
-  @ValidateNested()
-  @Type(() => EUser)
+  @IsNested(EUser)
   user: EUser;
 
-  @IsString()
-  @IsDefined()
   @IsJWT()
   token: string;
 }
 
 // UserMePermissions
 export class UserMePermissionsResponse {
-  @IsDefined()
   @IsStringList()
   permissions: string[];
 }
diff --git a/shared/src/dto/api/usermanage.dto.ts b/shared/src/dto/api/usermanage.dto.ts
index c23d01e..655a387 100644
--- a/shared/src/dto/api/usermanage.dto.ts
+++ b/shared/src/dto/api/usermanage.dto.ts
@@ -1,14 +1,10 @@
-import { Type } from 'class-transformer';
-import {
-  IsArray,
-  IsDefined,
-  IsOptional,
-  ValidateNested
-} from 'class-validator';
-import { EUser, NamePassUser } from '../../entities/user.entity';
+import { IsArray, IsOptional } from 'class-validator';
+import { EUser, SimpleUser } from '../../entities/user.entity';
+import { Newable } from '../../types';
+import { IsEntityID } from '../../validators/entity-id.validator';
+import { IsNested } from '../../validators/nested.validator';
 import { IsPosInt } from '../../validators/positive-int.validator';
 import { IsStringList } from '../../validators/string-list.validator';
-import { IsPlainTextPwd, IsUsername } from '../../validators/user.validators';
 import { EntityIDObject } from '../idobject.dto';
 
 // UserList
@@ -22,9 +18,7 @@ export class UserListRequest {
 
 export class UserListResponse {
   @IsArray()
-  @IsDefined()
-  @ValidateNested()
-  @Type(() => EUser)
+  @IsNested(EUser)
   users: EUser[];
 
   @IsPosInt()
@@ -35,11 +29,7 @@ export class UserListResponse {
 }
 
 // UserCreate
-export class UserCreateRequest extends NamePassUser {
-  @IsOptional()
-  @IsStringList()
-  roles?: string[];
-}
+export class UserCreateRequest extends SimpleUser {}
 export class UserCreateResponse extends EUser {}
 
 // UserDelete
@@ -51,33 +41,31 @@ export class UserInfoRequest extends EntityIDObject {}
 export class UserInfoResponse extends EUser {}
 
 // UserUpdate
-export class UserUpdateRequest extends EntityIDObject {
-  @IsOptional()
-  @IsUsername()
-  username?: string;
+export class UserUpdateRequest extends (SimpleUser as Newable<
+  Partial<SimpleUser>
+>) {
+  @IsEntityID()
+  id: string;
 
   @IsOptional()
-  @IsStringList()
-  roles?: string[];
+  override username?: string;
 
-  @IsPlainTextPwd()
   @IsOptional()
-  password?: string;
+  override password?: string;
+
+  @IsOptional()
+  override roles?: string[];
 }
-
 export class UserUpdateResponse extends EUser {}
 
 // GetSpecialUsers
 export class GetSpecialUsersResponse {
-  @IsDefined()
   @IsStringList()
   UndeletableUsersList: string[];
 
-  @IsDefined()
   @IsStringList()
   ImmutableUsersList: string[];
-  
-  @IsDefined()
+
   @IsStringList()
   LockedLoginUsersList: string[];
 }
diff --git a/shared/src/dto/idobject.dto.ts b/shared/src/dto/idobject.dto.ts
index 2d050cb..35558a5 100644
--- a/shared/src/dto/idobject.dto.ts
+++ b/shared/src/dto/idobject.dto.ts
@@ -1,6 +1,6 @@
-import { EntityID } from '../validators/entity-id.validator';
+import { IsEntityID } from '../validators/entity-id.validator';
 
 export class EntityIDObject {
-  @EntityID()
+  @IsEntityID()
   id: string;
 }
diff --git a/shared/src/dto/jwt.dto.ts b/shared/src/dto/jwt.dto.ts
index f30704f..0c072eb 100644
--- a/shared/src/dto/jwt.dto.ts
+++ b/shared/src/dto/jwt.dto.ts
@@ -1,11 +1,9 @@
-import { Type } from 'class-transformer';
-import { IsDefined, IsInt, IsOptional, ValidateNested } from 'class-validator';
+import { IsInt, IsOptional } from 'class-validator';
 import { EUser } from '../entities/user.entity';
+import { IsNested } from '../validators/nested.validator';
 
 export class JwtDataDto {
-  @IsDefined()
-  @ValidateNested()
-  @Type(() => EUser)
+  @IsNested(EUser)
   user: EUser;
 
   @IsOptional()
diff --git a/shared/src/dto/preferences.dto.ts b/shared/src/dto/preferences.dto.ts
index ea84f14..6aebcb8 100644
--- a/shared/src/dto/preferences.dto.ts
+++ b/shared/src/dto/preferences.dto.ts
@@ -1,4 +1,26 @@
+import { IsEnum, IsString } from 'class-validator';
+import { IsEntityID } from '../validators/entity-id.validator';
+import { IsPrefValue } from '../validators/pref-value.validator';
+
 // Variable value type
 export type PrefValueType = string | number | boolean;
 export type PrefValueTypeStrings = 'string' | 'number' | 'boolean';
 export const PrefValueTypes = ['string', 'number', 'boolean'];
+
+// Decoded Representations
+
+export class DecodedSysPref {
+  @IsString()
+  key: string;
+
+  @IsPrefValue()
+  value: PrefValueType;
+
+  @IsEnum(PrefValueTypes)
+  type: PrefValueTypeStrings;
+}
+
+export class DecodedUsrPref extends DecodedSysPref {
+  @IsEntityID()
+  user: string;
+}
diff --git a/shared/src/dto/syspreferences.dto.ts b/shared/src/dto/syspreferences.dto.ts
index 53e8443..711762e 100644
--- a/shared/src/dto/syspreferences.dto.ts
+++ b/shared/src/dto/syspreferences.dto.ts
@@ -1,4 +1,3 @@
-import { PrefValueType, PrefValueTypeStrings } from './preferences.dto';
 
 // This enum is only here to make accessing the values easier, and type checking in the backend
 export enum SysPreference {
@@ -9,10 +8,3 @@ export enum SysPreference {
   TestNumber = 'test_number',
   TestBoolean = 'test_boolean',
 }
-
-// Interfaces
-export interface InternalSysPrefRepresentation {
-  key: string;
-  value: PrefValueType;
-  type: PrefValueTypeStrings;
-}
diff --git a/shared/src/dto/usrpreferences.dto.ts b/shared/src/dto/usrpreferences.dto.ts
index 132fad7..a87e0a6 100644
--- a/shared/src/dto/usrpreferences.dto.ts
+++ b/shared/src/dto/usrpreferences.dto.ts
@@ -1,4 +1,3 @@
-import { PrefValueType, PrefValueTypeStrings } from './preferences.dto';
 
 // This enum is only here to make accessing the values easier, and type checking in the backend
 export enum UsrPreference {
@@ -7,10 +6,3 @@ export enum UsrPreference {
   TestBoolean = 'test_boolean',
 }
 
-// Interfaces
-export interface InternalUsrPrefRepresentation {
-  key: string;
-  value: PrefValueType;
-  type: PrefValueTypeStrings;
-  user: number;
-}
diff --git a/shared/src/entities/image.entity.ts b/shared/src/entities/image.entity.ts
index 16b1861..a9f4402 100644
--- a/shared/src/entities/image.entity.ts
+++ b/shared/src/entities/image.entity.ts
@@ -1,20 +1,19 @@
-import { Exclude } from 'class-transformer';
-import { IsHash, IsNotEmpty, IsOptional, IsString } from 'class-validator';
-import { EntityID } from '../validators/entity-id.validator';
+import { IsHash, IsOptional, IsString } from 'class-validator';
+import { IsEntityID } from '../validators/entity-id.validator';
+import { IsNotDefined } from '../validators/not-defined.validator';
 
 export class EImage {
-  @EntityID()
-  id: string;
+  @IsOptional()
+  @IsEntityID()
+  id?: string;
 
   @IsHash('sha256')
   hash: string;
 
-  // Binary data
-  @IsOptional()
-  @Exclude() // Dont send this by default
-  data?: object;
-  
-  @IsNotEmpty()
+  // Because typescript does not support exact types, we have to do this stupidness
+  @IsNotDefined()
+  data: undefined;
+
   @IsString()
   mime: string;
 }
diff --git a/shared/src/entities/role.entity.ts b/shared/src/entities/role.entity.ts
index d828ec3..7ef5785 100644
--- a/shared/src/entities/role.entity.ts
+++ b/shared/src/entities/role.entity.ts
@@ -1,23 +1,24 @@
-import { IsDefined } from 'class-validator';
-import { EntityID } from '../validators/entity-id.validator';
+import { IsOptional } from 'class-validator';
+import { IsEntityID } from '../validators/entity-id.validator';
 import { IsRoleName } from '../validators/role.validators';
 import { IsStringList } from '../validators/string-list.validator';
 
-// This entity is build from multiple smaller enitities
-// Theses smaller entities are used in other places
-
-export class RoleNameObject {
+export class SimpleRole {
   @IsRoleName()
   name: string;
-}
 
-export class RoleNamePermsObject extends RoleNameObject {
-  @IsDefined()
   @IsStringList()
   permissions: string[];
 }
 
-export class ERole extends RoleNamePermsObject {
-  @EntityID()
-  id: string;
+export class ERole {
+  @IsOptional()
+  @IsEntityID()
+  id?: string;
+
+  @IsRoleName()
+  name: string;
+
+  @IsStringList()
+  permissions: string[];
 }
diff --git a/shared/src/entities/syspreference.entity.ts b/shared/src/entities/syspreference.entity.ts
index 5fd78c7..1f8a228 100644
--- a/shared/src/entities/syspreference.entity.ts
+++ b/shared/src/entities/syspreference.entity.ts
@@ -1,15 +1,14 @@
-import { IsNotEmpty, IsString } from 'class-validator';
-import { EntityIDOptional } from '../validators/entity-id.validator';
+import { IsOptional, IsString } from 'class-validator';
+import { IsEntityID } from '../validators/entity-id.validator';
 
 export class ESysPreference {
-  @EntityIDOptional()
+  @IsOptional()
+  @IsEntityID()
   id?: string;
 
-  @IsNotEmpty()
   @IsString()
   key: string;
 
-  @IsNotEmpty()
   @IsString()
   value: string;
 }
diff --git a/shared/src/entities/user.entity.ts b/shared/src/entities/user.entity.ts
index cd7b27a..893c77c 100644
--- a/shared/src/entities/user.entity.ts
+++ b/shared/src/entities/user.entity.ts
@@ -1,37 +1,32 @@
-import { Exclude } from 'class-transformer';
-import { IsDefined, IsOptional, IsString } from 'class-validator';
-import { EntityID } from '../validators/entity-id.validator';
+import { IsOptional } from 'class-validator';
+import { IsEntityID } from '../validators/entity-id.validator';
+import { IsNotDefined } from '../validators/not-defined.validator';
 import { IsStringList } from '../validators/string-list.validator';
 import { IsPlainTextPwd, IsUsername } from '../validators/user.validators';
 
-// This entity is build from multiple smaller enitities
-// Theses smaller entities are used in other places
-
-export class UsernameUser {
+export class SimpleUser {
   @IsUsername()
   username: string;
-}
 
-// This is a simple user object with just the username and unhashed password
-export class NamePassUser extends UsernameUser {
   @IsPlainTextPwd()
   password: string;
-}
 
-// Add a user object with just the username and roles for jwt
-export class NameRolesUser extends UsernameUser {
-  @IsDefined()
   @IsStringList()
   roles: string[];
 }
 
-// Actual entity that goes in the db
-export class EUser extends NameRolesUser {
-  @EntityID()
-  id: string;
-
+export class EUser {
   @IsOptional()
-  @Exclude()
-  @IsString()
-  password?: string;
+  @IsEntityID()
+  id?: string;
+
+  @IsUsername()
+  username: string;
+
+  @IsStringList()
+  roles: string[];
+
+  // Because typescript does not support exact types, we have to do this stupidness
+  @IsNotDefined()
+  hashedPassword: undefined;
 }
diff --git a/shared/src/entities/usrpreference.ts b/shared/src/entities/usrpreference.ts
index 7245fee..c802625 100644
--- a/shared/src/entities/usrpreference.ts
+++ b/shared/src/entities/usrpreference.ts
@@ -1,20 +1,18 @@
-import { IsDefined, IsNotEmpty, IsString } from 'class-validator';
-import { EntityIDOptional } from '../validators/entity-id.validator';
+import { IsOptional, IsString } from 'class-validator';
+import { IsEntityID } from '../validators/entity-id.validator';
 import { IsPosInt } from '../validators/positive-int.validator';
 
 export class EUsrPreference {
-  @EntityIDOptional()
+  @IsOptional()
+  @IsEntityID()
   id?: string;
 
-  @IsNotEmpty()
   @IsString()
   key: string;
 
-  @IsNotEmpty()
   @IsString()
   value: string;
 
-  @IsDefined()
   @IsPosInt()
   userId: number;
 }
diff --git a/shared/src/util/decorator.ts b/shared/src/util/decorator.ts
index e2836b2..b35f051 100644
--- a/shared/src/util/decorator.ts
+++ b/shared/src/util/decorator.ts
@@ -3,7 +3,7 @@ type FCDecorator = MethodDecorator & ClassDecorator;
 export function CombineFCDecorators(...decorators: FCDecorator[]) {
   return (target: any, key: string, descriptor: PropertyDescriptor) => {
     decorators.forEach(decorator => {
-      decorator(target, key, descriptor);
+      decorator(target, key, descriptor as any);
     });
   }
 }
diff --git a/shared/src/util/validate.ts b/shared/src/util/validate.ts
index 1cbc3a6..3e36ba6 100644
--- a/shared/src/util/validate.ts
+++ b/shared/src/util/validate.ts
@@ -1,14 +1,14 @@
-import { validate } from 'class-validator';
+import { validate, ValidatorOptions } from 'class-validator';
 
 // For some stupid reason, the class-validator library does not have a way to set global defaults
 // So now we have to do it this way
 
-export const ValidateOptions = {
-  disableErrorMessages: true,
+export const ValidateOptions: ValidatorOptions = {
   forbidNonWhitelisted: true,
   forbidUnknownValues: true,
   stopAtFirstError: true,
   whitelist: true,
+  strictGroups: true,
 };
 
 export const strictValidate = (object: object) =>
diff --git a/shared/src/validators/entity-id.validator.ts b/shared/src/validators/entity-id.validator.ts
index 9a5fda9..5e65623 100644
--- a/shared/src/validators/entity-id.validator.ts
+++ b/shared/src/validators/entity-id.validator.ts
@@ -1,5 +1,4 @@
-import { IsNotEmpty, IsOptional, IsUUID } from 'class-validator';
+import { IsUUID } from 'class-validator';
 import { CombinePDecorators } from '../util/decorator';
 
-export const EntityID = CombinePDecorators(IsNotEmpty(), IsUUID('4'));
-export const EntityIDOptional = CombinePDecorators(IsOptional(), IsUUID('4'));
+export const IsEntityID = CombinePDecorators(IsUUID('4'));
diff --git a/shared/src/validators/nested.validator.ts b/shared/src/validators/nested.validator.ts
new file mode 100644
index 0000000..8ce0b21
--- /dev/null
+++ b/shared/src/validators/nested.validator.ts
@@ -0,0 +1,15 @@
+import { Type } from 'class-transformer';
+import { IsNotEmpty, ValidateNested } from 'class-validator';
+import { Newable } from '../types';
+
+export const IsNested = (nestedClass: Newable<any>) => {
+  const nestedValidator = ValidateNested();
+  const isNotEmptyValidator = IsNotEmpty();
+  const typeValidator = Type(() => nestedClass);
+  
+  return (target: Object, propertyKey: string | symbol): void => {
+    nestedValidator(target, propertyKey);
+    isNotEmptyValidator(target, propertyKey);
+    typeValidator(target, propertyKey);
+  };
+};
diff --git a/shared/src/validators/not-defined.validator.ts b/shared/src/validators/not-defined.validator.ts
new file mode 100644
index 0000000..949a65e
--- /dev/null
+++ b/shared/src/validators/not-defined.validator.ts
@@ -0,0 +1,26 @@
+import {
+  IsOptional,
+  registerDecorator,
+  ValidationArguments,
+  ValidationOptions
+} from 'class-validator';
+
+export function isNotDefined(value: any, args: ValidationArguments) {
+  return value === undefined || value === null;
+}
+
+export function IsNotDefined(validationOptions?: ValidationOptions) {
+  const optional = IsOptional();
+  return function (object: Object, propertyName: string) {
+    registerDecorator({
+      name: 'isNotDefined',
+      target: object.constructor,
+      propertyName: propertyName,
+      options: validationOptions ?? {},
+      validator: {
+        validate: isNotDefined,
+      },
+    });
+    optional(object, propertyName);
+  };
+}
diff --git a/shared/src/validators/positive-int.validator.ts b/shared/src/validators/positive-int.validator.ts
index 05b4cc5..6d352d3 100644
--- a/shared/src/validators/positive-int.validator.ts
+++ b/shared/src/validators/positive-int.validator.ts
@@ -1,4 +1,4 @@
-import { IsDefined, IsInt, Min } from 'class-validator';
+import { IsInt, Min } from 'class-validator';
 import { CombinePDecorators } from '../util/decorator';
 
-export const IsPosInt = CombinePDecorators(IsInt(), Min(0), IsDefined());
+export const IsPosInt = CombinePDecorators(IsInt(), Min(0));
diff --git a/shared/src/validators/syspref.validator.ts b/shared/src/validators/pref-value.validator.ts
similarity index 63%
rename from shared/src/validators/syspref.validator.ts
rename to shared/src/validators/pref-value.validator.ts
index a9016d8..7e7d8df 100644
--- a/shared/src/validators/syspref.validator.ts
+++ b/shared/src/validators/pref-value.validator.ts
@@ -1,20 +1,20 @@
 import { registerDecorator, ValidationArguments, ValidationOptions } from 'class-validator';
 import { PrefValueTypes } from '../dto/preferences.dto';
 
-export function isSysPrefValue(value: any, args: ValidationArguments) {
+export function isPrefValue(value: any, args: ValidationArguments) {
   const type = typeof value;
   return PrefValueTypes.includes(type);
 }
 
-export function IsSysPrefValue(validationOptions?: ValidationOptions) {
+export function IsPrefValue(validationOptions?: ValidationOptions) {
   return function (object: Object, propertyName: string) {
     registerDecorator({
-      name: 'isSysPrefValue',
+      name: 'isPrefValue',
       target: object.constructor,
       propertyName: propertyName,
-      options: validationOptions,
+      options: validationOptions ?? {},
       validator: {
-        validate: isSysPrefValue,
+        validate: isPrefValue,
       },
     });
   };
diff --git a/shared/src/validators/role.validators.ts b/shared/src/validators/role.validators.ts
index 02b4332..ac114ca 100644
--- a/shared/src/validators/role.validators.ts
+++ b/shared/src/validators/role.validators.ts
@@ -1,8 +1,7 @@
-import { IsAlphanumeric, IsNotEmpty, IsString, Length } from 'class-validator';
+import { IsAlphanumeric, IsString, Length } from 'class-validator';
 import { CombinePDecorators } from '../util/decorator';
 
 export const IsRoleName = CombinePDecorators(
-  IsNotEmpty(),
   IsString(),
   Length(4, 32),
   IsAlphanumeric(),
diff --git a/shared/src/validators/string-list.validator.ts b/shared/src/validators/string-list.validator.ts
index 132b4d7..41afe2b 100644
--- a/shared/src/validators/string-list.validator.ts
+++ b/shared/src/validators/string-list.validator.ts
@@ -1,12 +1,9 @@
 import {
-  IsArray,
-  IsNotEmpty,
-  IsString
+  IsArray, IsString
 } from 'class-validator';
 import { CombinePDecorators } from '../util/decorator';
 
 export const IsStringList = CombinePDecorators(
   IsArray(),
   IsString({ each: true }),
-  IsNotEmpty({ each: true }),
 );
diff --git a/shared/src/validators/user.validators.ts b/shared/src/validators/user.validators.ts
index d833cf9..dd8fac4 100644
--- a/shared/src/validators/user.validators.ts
+++ b/shared/src/validators/user.validators.ts
@@ -1,18 +1,16 @@
-import { IsAlphanumeric, IsNotEmpty, IsString, Length } from 'class-validator';
+import { IsAlphanumeric, IsString, Length } from 'class-validator';
 import { CombinePDecorators } from '../util/decorator';
 
 // Match this with user validators in frontend
 // (Frontend is not security focused, but it tells the user what is wrong)
 
 export const IsUsername = CombinePDecorators(
-  IsNotEmpty(),
   IsString(),
   Length(4, 32),
   IsAlphanumeric(),
 );
 
 export const IsPlainTextPwd = CombinePDecorators(
-  IsNotEmpty(),
   IsString(),
   Length(4, 1024),
 );