Understanding Decentralized Social Networks: 'Practical Fedify: ActivityPub Microblogging Development' Published
Impress Corporation, part of the Impress Group, is publishing 'Practical Fedify: ActivityPub Microblogging Development' by Hong Minhee as part of its 'Gijutsu-no-Izumi' (Fountain of Technology) series. The book serves as a practical guide for building microblogging platforms by implementing the ActivityPub protocol using JavaScript/TypeScript.
📋 Article Processing Timeline
- 📰 Published: May 19, 2026 at 20:00
- 🔍 Collected: May 19, 2026 at 11:31
- 🤖 AI Analyzed: May 21, 2026 at 17:32 (54h 0m after Collected)
Impress Corporation (Headquarters: Chiyoda-ku, Tokyo; President: Takashi Takahashi), which operates IT-related media businesses within the Impress Group, will publish 'Practical Fedify: ActivityPub Microblogging Development' (Author: Hong Minhee) through Impress NextPublishing.
The 'Gijutsu-no-Izumi' series, which shares the latest technical insights, publishes commercial books based on technical self-published works from events like 'Gijutsu-sho-ten' and 'Gijutsu-sho Dojinshi Hakurankai', aiming to contribute to the promotion and development of technical dojinshi.
■ Overview
Title: 'Practical Fedify: ActivityPub Microblogging Development'
Author: Hong Minhee
Retail Price: E-book Edition 1,800 JPY (excl. tax) / Printed Edition 2,000 JPY (excl. tax)
ISBN: 978-4-295-60461-7
Publisher: Impress NextPublishing
■ Content Introduction
This book is aimed at readers with basic knowledge of JavaScript/TypeScript and explains how to implement the ActivityPub protocol, which supports the Fediverse, a decentralized social network. Using the Fedify framework, it provides step-by-step practical procedures for building a microblog, accompanied by extensive code examples and diagrams. It covers everything from developing an environment with Node.js and database integration to user account management, post implementation, and integration with other ActivityPub instances.
■ About the Author
Hong Minhee: Born in Seoul, South Korea, in 1988. He began web development in 2000 and primarily uses languages such as Python, Haskell, C#, and TypeScript. As an ardent supporter of open source and the Fediverse, he developed 'Fedify', an ActivityPub server framework, and 'Hollo', a Fedify-based personal ActivityPub implementation.
The 'Gijutsu-no-Izumi' series, which shares the latest technical insights, publishes commercial books based on technical self-published works from events like 'Gijutsu-sho-ten' and 'Gijutsu-sho Dojinshi Hakurankai', aiming to contribute to the promotion and development of technical dojinshi.
■ Overview
Title: 'Practical Fedify: ActivityPub Microblogging Development'
Author: Hong Minhee
Retail Price: E-book Edition 1,800 JPY (excl. tax) / Printed Edition 2,000 JPY (excl. tax)
ISBN: 978-4-295-60461-7
Publisher: Impress NextPublishing
■ Content Introduction
This book is aimed at readers with basic knowledge of JavaScript/TypeScript and explains how to implement the ActivityPub protocol, which supports the Fediverse, a decentralized social network. Using the Fedify framework, it provides step-by-step practical procedures for building a microblog, accompanied by extensive code examples and diagrams. It covers everything from developing an environment with Node.js and database integration to user account management, post implementation, and integration with other ActivityPub instances.
■ About the Author
Hong Minhee: Born in Seoul, South Korea, in 1988. He began web development in 2000 and primarily uses languages such as Python, Haskell, C#, and TypeScript. As an ardent supporter of open source and the Fediverse, he developed 'Fedify', an ActivityPub server framework, and 'Hollo', a Fedify-based personal ActivityPub implementation.
FAQ
What kind of server can I build with Fedify?
You can build your own decentralized microblogging server that is interoperable with Mastodon and other ActivityPub-based platforms.
Is TypeScript knowledge mandatory to read this book?
Basic knowledge of JavaScript/TypeScript is recommended, as the implementation examples and frameworks in this book rely on these languages.
Where can I buy the printed version?
You can order it from Amazon.co.jp or through local bookstores in Japan.