DEV Community: Jürgen Kofler

OpenMicrofrontends Specification Released

Jürgen Kofler — Mon, 10 Nov 2025 13:51:01 +0000

The OpenMicrofrontends project aims to provide a formal specification for Microfrontends provided by a server. Think of it as OpenAPI for Microfrontends.

The project just released version 1.0.0 of the specification and a generator to create type-safe integration code on the Microfrontend- and the Host Application-side.

Example Description:

$schema: https://open-microfrontends.org/schemas/1-0-0.json
openMicrofrontends: 1.0.0
servers:
- url: 'http://localhost:7890'
  description: Local Test Server
microfrontends:
- name: My First Microfrontend
  assets:
    basePath: /public
    js:
      moduleSystem: ESM
      initial:
        - Microfrontend.js
  rendererFunctionName: startMyFirstMicrofrontend
  config:
    schema:
      type: object
      properties:
        welcomeMessage:
          type: string
      required: ["welcomeMessage"]
    default:
      welcomeMessage: Hello World!
  messages:
    ping:
      publish: true
      subscribe: true
      schema:
        type: object
        properties:
          ping:
            const: true
        required: ["ping"]

Find out more on the project homepage.

Mashroom Server 2.3 released

Jürgen Kofler — Fri, 10 Feb 2023 14:06:37 +0000

We've released Version 2.3 of the Microfrontend Integration Platform Mashroom Server today.
It comes now with improved TypeScript support and a lot of other neat features.
Checkout the full post: https://medium.com/mashroom-server/mashroom-server-2-3-released-889c9a519ce4

Mashroom Server v2 released

Jürgen Kofler — Mon, 25 Apr 2022 13:24:02 +0000

Today, we've released the second major version of the Microfrontend Integration Platform Mashroom Server.

With this version we've added hybrid rendering capabilities (support for SPAs/Microfrontends with server-side rendering) and performance and SEO optimisations. This makes the platform more suitable for websites.

Check out the details here: https://medium.com/mashroom-server/mashroom-server-2-0-released-3b62d2e1011e

Creating a Microfrontend Platform with Mashroom Portal on Kubernetes

Jürgen Kofler — Mon, 03 Feb 2020 08:24:44 +0000

Wouldn’t it be cool to deploy and operate Microfrontends just like Microservices in independent containers on an orchestration platform such as Kubernetes?

Here a short article that describes how to create such a platform: https://medium.com/mashroom-server/creating-a-microfrontend-platform-with-mashroom-portal-on-kubernetes-4bf4c9d60940

Mashroom Server - Micro-Frontend Integration Platform

Jürgen Kofler — Sat, 16 Nov 2019 17:19:25 +0000

A few months ago we've open sourced Mashroom Server, a platform that allows you to easily build Web-Portals from Microfrontends (either server-side rendered Express.js web-apps or client-side SPAs). React, Vue or Angular apps can be developed completely independent (and without any lock-in) and then later integrated into Portal pages (even via Drag'n'Drop). The platform also comes with security, theming, i18n, storage and communication out of the box.

Version 1.2 has just been released today: https://medium.com/mashroom-server/mashroom-server-1-2-released-f4e5502d855d

Check out the homepage for the current features: https://www.mashroom-server.com/