diff --git a/packages/server/src/application/Bootstrap.ts b/packages/server/src/application/Bootstrap.ts
index 7a72069..f200df8 100644
--- a/packages/server/src/application/Bootstrap.ts
+++ b/packages/server/src/application/Bootstrap.ts
@@ -5,23 +5,60 @@ import { AddressInfo } from 'net'
 import { Database } from '../database/Database'
 import { IDatabase } from '../database/IDatabase'
 import { loggerFactory, SqlLogger } from '../logger'
-import { configureServer } from './configureServer'
+import { ServerConfigurator } from './configureServer'
 import { createServer } from './createServer'
 import { IApplication } from './IApplication'
 import { IBootstrap } from './IBootstrap'
 import { IConfig } from './IConfig'
+import { IServerConfig } from './IServerConfig'
+
+export interface IBootstrapParams {
+  readonly config: IConfig
+  readonly configureServer: ServerConfigurator
+  readonly namespace?: Namespace
+  readonly exit?: (code: number) => void
+  readonly entities?: object
+  readonly migrations?: object
+}
+
+// tslint:disable-next-line
+function getFunctions(obj: object): Function[] {
+  return Object.keys(obj)
+  .map(k => (obj as any)[k])
+  .filter(f => typeof f === 'function')
+}
 
 export class Bootstrap implements IBootstrap {
+  protected config: IConfig
+  protected configureServer: ServerConfigurator
+  protected namespace: Namespace
+  protected exit: (code: number) => void
+
   protected server?: Server
   protected inUse: boolean = false
   readonly application: IApplication
   readonly database: IDatabase
 
-  constructor(
-    private readonly config: IConfig,
-    protected readonly namespace: Namespace = createNamespace('application'),
-    protected readonly exit: (code: number) => void = process.exit,
-  ) {
+  constructor(params: IBootstrapParams) {
+    this.config = {
+      ...params.config,
+      app: {
+        ...params.config.app,
+        db: {
+          ...params.config.app.db,
+          entities: params.entities
+            ? getFunctions(params.entities)
+            : params.config.app.db.entities,
+          migrations: params.migrations
+            ? getFunctions(params.migrations)
+            : params.config.app.db.migrations,
+        },
+      },
+    }
+    this.configureServer = params.configureServer
+    this.namespace = params.namespace || createNamespace('application')
+    this.exit = params.exit || process.exit
+
     this.database = this.createDatabase()
     this.application = this.createApplication(this.database)
   }
@@ -31,12 +68,13 @@ export class Bootstrap implements IBootstrap {
   }
 
   protected createDatabase(): IDatabase {
-    const sqlLogger = new SqlLogger(
-      loggerFactory.getLogger('sql'), this.namespace)
-    return new Database(this.namespace, sqlLogger, this.getConfig().app.db)
+    const {namespace} = this
+    const sqlLogger = new SqlLogger(loggerFactory.getLogger('sql'), namespace)
+    return new Database(namespace, sqlLogger, this.getConfig().app.db)
   }
 
   protected createApplication(database: IDatabase): IApplication {
+    const {configureServer} = this
     return createServer(configureServer(this.getConfig(), database))
   }
 
diff --git a/packages/server/src/application/configureServer.ts b/packages/server/src/application/configureServer.ts
index 750e56a..ddb7ddb 100644
--- a/packages/server/src/application/configureServer.ts
+++ b/packages/server/src/application/configureServer.ts
@@ -14,14 +14,14 @@ import { TransactionalRouter } from '../router'
 import { IRoutes, IContext } from '@rondo.dev/common'
 import { Express } from 'express-serve-static-core'
 
-export type AppConfigurator<
+export type ServerConfigurator<
   T extends IServerConfig = IServerConfig
 > = (
   config: IConfig,
   database: IDatabase,
 ) => T
 
-export const configureServer: AppConfigurator = (config, database) => {
+export const configureServer: ServerConfigurator = (config, database) => {
 
   const logger = loggerFactory.getLogger('api')
 
diff --git a/packages/server/src/bootstrap.ts b/packages/server/src/bootstrap.ts
index 0d145db..cec1db3 100644
--- a/packages/server/src/bootstrap.ts
+++ b/packages/server/src/bootstrap.ts
@@ -1,12 +1,8 @@
-if (!process.env.LOG) {
-  process.env.LOG = 'api,sql:warn'
-}
-
 import {config} from './config'
 import {Bootstrap} from './application/Bootstrap'
+import {configureServer} from './application/configureServer'
 
-export const bootstrap = new Bootstrap(config)
-// FIXME determine a port by parsing app url from config
-const port: string | number = process.env.PORT || 3000
-
-bootstrap.listen(port)
+export default new Bootstrap({
+  config,
+  configureServer,
+})
diff --git a/packages/server/src/index.ts b/packages/server/src/index.ts
index 6770366..85f1d9e 100644
--- a/packages/server/src/index.ts
+++ b/packages/server/src/index.ts
@@ -1,3 +1,8 @@
+if (require.main === module) {
+  if (!process.env.LOG) {
+    process.env.LOG = 'api,sql:warn'
+  }
+}
 export * from './application'
 export * from './database'
 export * from './entities'
@@ -14,3 +19,9 @@ export * from './validator'
 
 import * as rpc from './rpc'
 export {rpc}
+
+import bootstrap from './bootstrap'
+
+if (require.main === module) {
+  bootstrap.exec(process.argv[2])
+}
diff --git a/packages/server/src/test.ts b/packages/server/src/test.ts
index 95210cc..c1685f7 100644
--- a/packages/server/src/test.ts
+++ b/packages/server/src/test.ts
@@ -1,4 +1,5 @@
 import {Bootstrap} from './application/Bootstrap'
+import {configureServer} from './application/configureServer'
 import {IAPIDef} from '@rondo.dev/common'
 import {TestUtils} from './test-utils'
 import {config} from './config'
@@ -6,11 +7,12 @@ import {createNamespace} from 'cls-hooked'
 
 export const exit = jest.fn()
 
-export const bootstrap = new Bootstrap(
+export const bootstrap = new Bootstrap({
   config,
-  createNamespace('test'),
+  configureServer,
+  namespace: createNamespace('test'),
   exit,
-)
+})
 
 // TODO separate IAPIDef between projects
 export const test = new TestUtils<IAPIDef>(bootstrap)