diff --git a/libs/plugin/core/generators.json b/libs/plugin/core/generators.json
index 298d1b0..2f7b049 100644
--- a/libs/plugin/core/generators.json
+++ b/libs/plugin/core/generators.json
@@ -20,6 +20,12 @@
       "schema": "./src/generators/presentation/schema.json",
       "description": "Add a presentation layer",
       "hidden": true
+    },
+    "repository": {
+      "factory": "./src/generators/repository/generator.compat#generatorSchematic",
+      "schema": "./src/generators/repository/schema.json",
+      "description": "Add a abstract and implementation repository",
+      "hidden": true
     }
   },
   "generators": {
@@ -37,6 +43,11 @@
       "factory": "./src/generators/presentation/generator",
       "schema": "./src/generators/presentation/schema.json",
       "description": "Presentation"
+    },
+    "repository": {
+      "factory": "./src/generators/repository/generator",
+      "schema": "./src/generators/repository/schema.json",
+      "description": "Add a abstract and implementation repository"
     }
   }
 }
\ No newline at end of file
diff --git a/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/__model__.inmemory.repository.spec.ts__template__ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/__model__.inmemory.repository.spec.ts__template__
new file mode 100644
index 0000000..63e1040
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/__model__.inmemory.repository.spec.ts__template__
@@ -0,0 +1,43 @@
+import { <%= entity.className %>InMemoryRepository } from './<%= entity.propertyName %>.inmemory.repository';
+import { <%= entity.className %>Repository } from '@<%= npmScope %>/<%= projectDomain %>';
+import { forkJoin } from 'rxjs';
+
+describe('<%= entity.className %> In Memory Repository', () => {
+  let repo: <%= entity.className %>Repository;
+
+  beforeEach(() => {
+    repo = new <%= entity.className %>InMemoryRepository([
+      {
+        id: '1',
+        title: 'one'
+      },
+      {
+        id: '2',
+        title: 'two'
+      },
+      {
+        id: '3',
+        title: 'three'
+      },
+    ]);
+  });
+
+  it('get all', (done) => {
+    repo.getAll<%= entity.className %>s().subscribe((<%= entity.propertyName %>s) => {
+      expect(<%= entity.propertyName %>s.length).toEqual(3);
+      done();
+    });
+  });
+
+  it('add <%= entity.propertyName %>', (done) => {
+    const name = 'bar';
+    const add$ = repo.add<%= entity.className %>({name});
+    const all$ = repo.getAll<%= entity.className %>s();
+
+    forkJoin([add$, all$]).subscribe(([<%= entity.propertyName %>, <%= entity.propertyName %>s]) => {
+      expect(<%= entity.propertyName %>.name).toEqual('bar');
+      expect(<%= entity.propertyName %>s.length).toEqual(4);
+      done();
+    });
+  });
+});
diff --git a/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/__model__.inmemory.repository.ts__template__ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/__model__.inmemory.repository.ts__template__
new file mode 100644
index 0000000..9db9e43
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/__model__.inmemory.repository.ts__template__
@@ -0,0 +1,44 @@
+import { <%= entity.className %>Repository, <%= entity.className %>Entity } from '@<%= npmScope %>/<%= projectDomain %>';
+import { <%= entity.className %>MockMapper } from './mapper/<%= entity.fileName %>-mock.mapper';
+import { <%= entity.className %>MockDto } from './dto/<%= entity.fileName %>-mock.dto';
+import { Observable, of } from 'rxjs';
+import { map } from 'rxjs/operators';
+
+export class <%= entity.className %>InMemoryRepository implements <%= entity.className %>Repository {
+  constructor(private data: <%= entity.className %>MockDto[] = []) {}
+
+  private mapper = new <%= entity.className %>MockMapper();
+
+  public getAll<%= entity.className %>s(): Observable<<%= entity.className %>Entity[]> {
+    return of(this.data).pipe(map((mocks) => mocks.map(this.mapper.mapTo)));
+  }
+
+  public add<%= entity.className %>({ name }: Pick<<%= entity.className %>Entity, 'name'>): Observable<<%= entity.className %>Entity> {
+    const id = 'item-' + new Date().getTime();
+    const <%= entity.propertyName %>: <%= entity.className %>Entity = <%= entity.className %>Entity.create({ id, name });
+
+    this.data.push(this.mapper.mapFrom(<%= entity.propertyName %>));
+    return of(<%= entity.propertyName %>);
+  }
+
+  public get<%= entity.className %>ById(id: string): Observable<<%= entity.className %>Entity> {
+    return of<<%= entity.className %>MockDto>(
+      this.data.find((<%= entity.propertyName %>) => <%= entity.propertyName %>.id === id) as <%= entity.className %>MockDto
+    ).pipe(map(this.mapper.mapTo));
+  }
+
+  public update<%= entity.className %>(id: string, <%= entity.propertyName %>: <%= entity.className %>Entity): Observable<<%= entity.className %>Entity> {
+    const record = this.data.findIndex((<%= entity.propertyName %>) => <%= entity.propertyName %>.id === id)
+    this.data[record] = this.mapper.mapFrom(<%= entity.propertyName %>);
+    return of(this.mapper.mapTo(this.data[record]));
+  }
+
+  public remove<%= entity.className %>(id: string): Observable<<%= entity.className %>Entity> {
+    const idx = this.data.findIndex((t) => t.id === id);
+    const <%= entity.propertyName %> = this.data.find((t) => t.id === id);
+
+    this.data.splice(idx, 1);
+
+    return of<<%= entity.className %>MockDto>(<%= entity.propertyName %> as <%= entity.className %>MockDto).pipe(map(this.mapper.mapTo));
+  }
+}
diff --git a/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/dto/__model__-mock.dto.ts__template__ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/dto/__model__-mock.dto.ts__template__
new file mode 100644
index 0000000..df7a7df
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/dto/__model__-mock.dto.ts__template__
@@ -0,0 +1,9 @@
+export class <%= entity.className %>MockDto {
+  id: string;
+  title: string;
+
+  constructor(params: <%= entity.className %>MockDto) {
+    this.id = params.id;
+    this.title = params.title;
+  }
+}
diff --git a/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/mapper/__model__-mock.mapper.ts__template__ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/mapper/__model__-mock.mapper.ts__template__
new file mode 100644
index 0000000..1d102df
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/data/files/lib/inmemory/mapper/__model__-mock.mapper.ts__template__
@@ -0,0 +1,21 @@
+import { <%= entity.className %>MockDto } from '../dto/<%= entity.propertyName %>-mock.dto';
+import { <%= entity.className %>Entity } from '@<%= npmScope %>/<%= projectDomain %>';
+import { Mapper } from '@nx-clean/core';
+
+export class <%= entity.className %>MockMapper implements Mapper<<%= entity.className %>Entity, <%= entity.className %>MockDto> {
+  mapFrom(input: <%= entity.className %>Entity): <%= entity.className %>MockDto {
+    return {
+      id: input?.id,
+      title: input?.name
+    };
+  }
+
+  mapTo(input: <%= entity.className %>MockDto): <%= entity.className %>Entity {
+    const <%= entity.propertyName %> = <%= entity.className %>Entity.create({
+      id: input?.id,
+      name: input?.title
+    });
+
+    return <%= entity.propertyName %>;
+  }
+}
diff --git a/libs/plugin/core/src/generators/repository/files/domain/files/lib/entity/__model__.entity.spec.ts__template__ b/libs/plugin/core/src/generators/repository/files/domain/files/lib/entity/__model__.entity.spec.ts__template__
new file mode 100644
index 0000000..6cc9677
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/domain/files/lib/entity/__model__.entity.spec.ts__template__
@@ -0,0 +1,13 @@
+import { <%= entity.className %>Entity } from './<%= entity.fileName %>.entity';
+
+describe('<%= entity.className %> Entity', () => {
+  it('should be properly initialized', () => {
+    const model = <%= entity.className %>Entity.create({
+      id: '1',
+      name: 'foo',
+    });
+
+    expect(model.id).toEqual('1');
+    expect(model.name).toEqual('foo');
+  });
+});
diff --git a/libs/plugin/core/src/generators/repository/files/domain/files/lib/entity/__model__.entity.ts__template__ b/libs/plugin/core/src/generators/repository/files/domain/files/lib/entity/__model__.entity.ts__template__
new file mode 100644
index 0000000..e3e2597
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/domain/files/lib/entity/__model__.entity.ts__template__
@@ -0,0 +1,13 @@
+export class <%= entity.className %>Entity {
+  id: string;
+  name: string;
+
+  private constructor(params: <%= entity.className %>Entity) {
+    this.id = params?.id;
+    this.name = params?.name;
+  }
+
+  static create(params: <%= entity.className %>Entity) {
+    return new this(params);
+  }
+}
diff --git a/libs/plugin/core/src/generators/repository/files/domain/files/lib/repository/__model__.repository.ts__template__ b/libs/plugin/core/src/generators/repository/files/domain/files/lib/repository/__model__.repository.ts__template__
new file mode 100644
index 0000000..21930aa
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/domain/files/lib/repository/__model__.repository.ts__template__
@@ -0,0 +1,10 @@
+import { <%= entity.className %>Entity } from '../entity/<%= entity.fileName %>.entity';
+import { Observable } from 'rxjs';
+
+export abstract class <%= entity.className %>Repository {
+  public abstract getAll<%= entity.className %>s(): Observable<<%= entity.className %>Entity[]>;
+  public abstract add<%= entity.className %>(<%= entity.propertyName %>: Pick<<%= entity.className %>Entity, 'name'>): Observable<<%= entity.className %>Entity>;
+  public abstract update<%= entity.className %>(id: string, <%= entity.propertyName %>: <%= entity.className %>Entity): Observable<<%= entity.className %>Entity>;
+  public abstract remove<%= entity.className %>(id: string): Observable<<%= entity.className %>Entity>;
+  public abstract get<%= entity.className %>ById(id: string): Observable<<%= entity.className %>Entity>;
+}
diff --git a/libs/plugin/core/src/generators/repository/files/src/index.ts__template__ b/libs/plugin/core/src/generators/repository/files/src/index.ts__template__
new file mode 100644
index 0000000..dde3cb6
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/files/src/index.ts__template__
@@ -0,0 +1 @@
+const variable = "<%= projectName %>";
\ No newline at end of file
diff --git a/libs/plugin/core/src/generators/repository/generator.compat.ts b/libs/plugin/core/src/generators/repository/generator.compat.ts
new file mode 100644
index 0000000..8bdd87d
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/generator.compat.ts
@@ -0,0 +1,4 @@
+import { convertNxGenerator } from '@nrwl/devkit';
+import generator from './generator';
+
+export const generatorSchematic = convertNxGenerator(generator);
\ No newline at end of file
diff --git a/libs/plugin/core/src/generators/repository/generator.ts b/libs/plugin/core/src/generators/repository/generator.ts
new file mode 100644
index 0000000..b8cce9b
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/generator.ts
@@ -0,0 +1,85 @@
+import {
+  Tree,
+  names,
+  generateFiles,
+  offsetFromRoot,
+  readProjectConfiguration,
+  readWorkspaceConfiguration,
+} from '@nrwl/devkit';
+import { join } from 'path';
+import {
+  ImplRepositoryGeneratorSchema,
+  NormalizedSchema,
+  RepositoryGeneratorSchema,
+  TemplateOptions,
+} from './schema';
+
+export default function (host: Tree, options: RepositoryGeneratorSchema): void;
+
+export default function (
+  host: Tree,
+  options: ImplRepositoryGeneratorSchema
+): void {
+  const normalizedOptions = normalizeOptions(host, options);
+
+  if (options.name && options.domain) {
+    const domain = readProjectConfiguration(host, options.domain);
+
+    addFiles(
+      host,
+      normalizedOptions,
+      __dirname + '/files/domain',
+      domain.sourceRoot
+    );
+  }
+
+  if (options.impl && options.data) {
+    if (!options.name) {
+      throw new Error('You need to add a name');
+    }
+
+    const data = readProjectConfiguration(host, options.data);
+
+    addFiles(
+      host,
+      normalizedOptions,
+      __dirname + '/files/data',
+      data.sourceRoot
+    );
+  }
+}
+
+function normalizeOptions(
+  host: Tree,
+  options: ImplRepositoryGeneratorSchema
+): NormalizedSchema {
+  const npmScope = readWorkspaceConfiguration(host).npmScope;
+  const projectDomain = options.domain;
+  const projectData = options.data;
+  return {
+    ...options,
+    projectDomain,
+    projectData,
+    npmScope,
+  };
+}
+
+function addFiles(
+  host: Tree,
+  options: NormalizedSchema,
+  dir: string,
+  target: string
+) {
+  const entity = names(options.name);
+
+  const templateOptions: TemplateOptions = {
+    ...options,
+    ...names(options.name),
+    model: entity.fileName,
+    offsetFromRoot: offsetFromRoot(target),
+    template: '',
+    entity,
+  };
+
+  generateFiles(host, join(dir, 'files'), target, templateOptions);
+}
diff --git a/libs/plugin/core/src/generators/repository/schema.d.ts b/libs/plugin/core/src/generators/repository/schema.d.ts
new file mode 100644
index 0000000..cd1b151
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/schema.d.ts
@@ -0,0 +1,31 @@
+export interface RepositoryGeneratorSchema {
+  name: string;
+  domain: string;
+  impl?: boolean;
+}
+
+export interface ImplRepositoryGeneratorSchema extends RepositoryGeneratorSchema {
+  impl: boolean;
+  data: string;
+}
+
+export interface NormalizedSchema extends RepositoryGeneratorSchema {
+  projectDomain: string;
+  projectData: string;
+  npmScope: string;
+}
+
+export interface Names {
+  name: string;
+  className: string;
+  propertyName: string;
+  constantName: string;
+  fileName: string;
+}
+
+export interface TemplateOptions extends NormalizedSchema, Names {
+  offsetFromRoot: string;
+  entity: Names;
+  model: string;
+  template: string;
+}
diff --git a/libs/plugin/core/src/generators/repository/schema.json b/libs/plugin/core/src/generators/repository/schema.json
new file mode 100644
index 0000000..7ae279c
--- /dev/null
+++ b/libs/plugin/core/src/generators/repository/schema.json
@@ -0,0 +1,38 @@
+{
+  "$schema": "http://json-schema.org/schema",
+  "cli": "nx",
+  "id": "Repository",
+  "title": "",
+  "type": "object",
+  "properties": {
+    "name": {
+      "type": "string",
+      "description": "",
+      "$default": {
+        "$source": "argv",
+        "index": 0
+      },
+      "x-prompt": "What name would you like to use?"
+    },
+    "domain": {
+      "type": "string",
+      "description": "The name of the domain library.",
+      "$default": {
+        "$source": "projectName"
+      }
+    },
+    "impl": {
+      "type": "boolean",
+      "description": "Would you like to add a implementation?",
+      "default": false
+    },
+    "data": {
+      "type": "string",
+      "description": "The name of the data library.",
+      "$default": {
+        "$source": "projectName"
+      }
+    }
+  },
+  "required": ["name", "domain"]
+}
diff --git a/libs/plugin/core/src/utils/add-files.ts b/libs/plugin/core/src/utils/add-files.ts
index c211525..c959868 100644
--- a/libs/plugin/core/src/utils/add-files.ts
+++ b/libs/plugin/core/src/utils/add-files.ts
@@ -10,19 +10,19 @@ export function addFiles(
   host: Tree,
   options: DomainPluginCoreNormalizedSchema,
   dir: string
-);
+): void
 
 export function addFiles(
   host: Tree,
   options: DataPluginCoreNormalizedSchema,
   dir: string
-);
+): void
 
 export function addFiles(
   host: Tree,
   options: PresentationPluginCoreNormalizedSchema,
   dir: string
-) {
+): void {
   const libNames = names(options.name);
 
   const templateOptions: Record<string, any> = {