洪 民憙 (Hong Minhee)

Hello! I'm Hong Minhee (洪 民憙), an open source software engineer in my late 30s, living in Seoul, Korea. I'm bisexual and non-binary (they/them), and an enthusiastic advocate of free/open source software and the fediverse.

I work full-time on @fedify, an ActivityPub server framework in TypeScript, funded by @sovtechfund. I'm also the creator of @hollo, a single-user ActivityPub microblog; @botkit, an ActivityPub bot framework; Hackers' Pub, a fediverse platform for software developers; and LogTape, a logging library for JavaScript and TypeScript.

I have a long interest in East Asian languages (CJK) and Unicode. I post mostly in English here, though occasionally in Japanese or in mixed-script Korean (國漢文混用體), a traditional writing style that interleaves Chinese characters with the native Korean alphabet. Wanting to write in that style was actually one of the reasons I joined the fediverse. Feel free to talk to me in English, Korean, Japanese, or even Literary Chinese!

#introduction

はじめまして！ソウル在住の30代後半のオープンソースソフトウェアエンジニア、洪 民憙（ホン・ミンヒ）と申します。バイセクシュアル（bisexual）・ノンバイナリー（non-binary）で、自由・オープンソースソフトウェア（F/OSS）とフェディバース（fediverse）の熱烈な支持者です。

STF（@sovtechfund）の支援を受け、TypeScript用ActivityPubサーバーフレームワーク「@fedify」の開発に専念しています。他にも、おひとり様向けのActivityPubマイクロブログ「@hollo」、ActivityPubボットフレームワーク「@botkit」、ソフトウェア開発者向けフェディバースプラットフォームHackers' Pub、JavaScript・TypeScript用ロギングライブラリLogTapeなどの制作者でもあります。

東アジア言語（いわゆるCJK）とUnicodeにも興味があります。このアカウントでは主に英語で投稿していますが、時々日本語や国漢文混用体（漢字ハングル混じり文）の韓国語でも書いています。実はこの文体で書きたくてフェディバースを始めた、という経緯もあります。日本語、英語、韓国語、漢文でも気軽に話しかけてください！

#自己紹介

安寧(안녕)하세요! 저는 서울에 살고 있는 30代(대) 後半(후반)의 오픈 소스 소프트웨어 엔지니어 洪民憙(홍민희)입니다. 兩性愛者(양성애자)(bisexual)이자 논바이너리(non-binary)이며, 自由(자유)·오픈 소스 소프트웨어(F/OSS)와 聯合宇宙(연합우주)(fediverse)의 熱烈(열렬)한 支持者(지지자)이기도 합니다.

STF(@sovtechfund)의 支援(지원)을 받아 TypeScript用(용) ActivityPub 서버 프레임워크 @fedify 開發(개발)에 專業(전업)으로 任(임)하고 있습니다. 그 外(외)에도 싱글 유저用(용) ActivityPub 마이크로블로그 @hollo, ActivityPub 봇 프레임워크 @botkit, 소프트웨어 開發者(개발자)를 위한 聯合宇宙(연합우주) 플랫폼 Hackers' Pub, JavaScript·TypeScript用(용) 로깅 라이브러리 LogTape 等(등)의 製作者(제작자)이기도 합니다.

東(동)아시아 言語(언어)(이른바 CJK)와 Unicode에도 關心(관심)이 많습니다. 이 計定(계정)에서는 主(주)로 英語(영어)로 포스팅하지만, 때때로 日本語(일본어)나 國漢文混用體(국한문 혼용체) 韓國語(한국어)로도 씁니다. 聯合宇宙(연합우주)에 오게 된 動機(동기) 中(중) 하나가 바로 國漢文混用體(국한문 혼용체)로 글을 쓰고 싶었기 때문이기도 하고요. 韓國語(한국어), 英語(영어), 日本語(일본어), 아니면 漢文(한문)으로도 말을 걸어주세요!

#툿친소 #연친소 #별친소 #자기소개

はじめまして！ソウル在住の30代後半のオープンソースソフトウェアエンジニア、洪 民憙（ホン・ミンヒ）と申します。バイセクシュアル（bisexual）・ノンバイナリー（non-binary）で、自由・オープンソースソフトウェア（F/OSS）とフェディバース（fediverse）の熱烈な支持者です。

STF（@sovtechfund）の支援を受け、TypeScript用ActivityPubサーバーフレームワーク「@fedify」の開発に専念しています。他にも、おひとり様向けのActivityPubマイクロブログ「@hollo」、ActivityPubボットフレームワーク「@botkit」、ソフトウェア開発者向けフェディバースプラットフォームHackers' Pub、JavaScript・TypeScript用ロギングライブラリLogTapeなどの制作者でもあります。

東アジア言語（いわゆるCJK）とUnicodeにも興味があります。このアカウントでは主に英語で投稿していますが、時々日本語や国漢文混用体（漢字ハングル混じり文）の韓国語でも書いています。実はこの文体で書きたくてフェディバースを始めた、という経緯もあります。日本語、英語、韓国語、漢文でも気軽に話しかけてください！

#自己紹介

安寧(안녕)하세요! 저는 서울에 살고 있는 30代(대) 後半(후반)의 오픈 소스 소프트웨어 엔지니어 洪民憙(홍민희)입니다. 兩性愛者(양성애자)(bisexual)이자 논바이너리(non-binary)이며, 自由(자유)·오픈 소스 소프트웨어(F/OSS)와 聯合宇宙(연합우주)(fediverse)의 熱烈(열렬)한 支持者(지지자)이기도 합니다.

STF(@sovtechfund)의 支援(지원)을 받아 TypeScript用(용) ActivityPub 서버 프레임워크 @fedify 開發(개발)에 專業(전업)으로 任(임)하고 있습니다. 그 外(외)에도 싱글 유저用(용) ActivityPub 마이크로블로그 @hollo, ActivityPub 봇 프레임워크 @botkit, 소프트웨어 開發者(개발자)를 위한 聯合宇宙(연합우주) 플랫폼 Hackers' Pub, JavaScript·TypeScript用(용) 로깅 라이브러리 LogTape 等(등)의 製作者(제작자)이기도 합니다.

東(동)아시아 言語(언어)(이른바 CJK)와 Unicode에도 關心(관심)이 많습니다. 이 計定(계정)에서는 主(주)로 英語(영어)로 포스팅하지만, 때때로 日本語(일본어)나 國漢文混用體(국한문 혼용체) 韓國語(한국어)로도 씁니다. 聯合宇宙(연합우주)에 오게 된 動機(동기) 中(중) 하나가 바로 國漢文混用體(국한문 혼용체)로 글을 쓰고 싶었기 때문이기도 하고요. 韓國語(한국어), 英語(영어), 日本語(일본어), 아니면 漢文(한문)으로도 말을 걸어주세요!

#툿친소 #연친소 #별친소 #자기소개

Hello! I'm Hong Minhee (洪 民憙), an open source software engineer in my late 30s, living in Seoul, Korea. I'm bisexual and non-binary (they/them), and an enthusiastic advocate of free/open source software and the fediverse.

I work full-time on @fedify, an ActivityPub server framework in TypeScript, funded by @sovtechfund. I'm also the creator of @hollo, a single-user ActivityPub microblog; @botkit, an ActivityPub bot framework; Hackers' Pub, a fediverse platform for software developers; and LogTape, a logging library for JavaScript and TypeScript.

I have a long interest in East Asian languages (CJK) and Unicode. I post mostly in English here, though occasionally in Japanese or in mixed-script Korean (國漢文混用體), a traditional writing style that interleaves Chinese characters with the native Korean alphabet. Wanting to write in that style was actually one of the reasons I joined the fediverse. Feel free to talk to me in English, Korean, Japanese, or even Literary Chinese!

#introduction

The languages are from entirely different language trees.

Hokkien / Teochew are southern Min languages, Cantonese is a Yue language

Mutual intelligibility is debatable, but many (especially older folks) just learn all the ones they need informally. My parents speak Hokkien, Teochew, Cantonese, Hakka, Mandarin.

https://www.omniglot.com/chinese/spoken.htm

https://en.wikipedia.org/wiki/Varieties_of_Chinese

#Languages #Chinese

In many Chinese families it’s pretty common for people to talk to each other in completely different languages. My New York aunt speaks to me in Mandarin / Hokkien. She speaks to her husband in Toishanese. They speak Cantonese to other people. We all sort of understand each other when we are speaking different languages, but respond in our own language. From time to time we might dip into another language to illustrate a point.

My grandma used to call this ‘chicken and duck talk’

#Languages #Chinese

@evanprodromou @evan Thank you for spreading the word! By the way, I don't know why, but the first link seems broken. Could you replace the link with https://hackers.pub/@fedidevkr/2026/fediverse-social-web-track-at-coscup-2026-cfp?

The #CFP for the Fediverse & Social Web track at COSCUP 2026 (Taipei, Aug 8–9) is now open! If you're working on #ActivityPub, the #fediverse, or anything in the open social web space, we'd love to hear from you. The deadline is May 9. #COSCUP is free to attend.

👉 https://hackers.pub/@fedidevkr/2026/fediverse-social-web-track-at-coscup-2026-cfp

(Boosts appreciated!)

#SocialWeb #fedidev

"I used AI. It worked. I hated it." by @mttaggart https://taggart-tech.com/reckoning/

This is a really good blogpost. And I"m sure it'll make some people unhappy to read whether they're pro or anti genAI. What's good about @mttaggart's blogpost is he talks honestly about how using Claude Code did actually solve the problem he set out to do. It needed various guardrails, but they were possible to set up, and the project worked. But the post is also completely clear and honest about how miserable it was:

- It removed the joy from the process
- If you aim to do the right thing and carefully evaluate the output, your job ends up eventually becoming "tapping the Y key"
- Ramifications on people learning things
- Plenty of other ethical analysis
- And the nagging wonder whether to use it next time, despite it being miserable.

I think this is important, because it *is* true that these tools are getting to the point where they can accomplish a lot of tasks, but the caveat space is very large (cotd)

I just wrapped up my appearance on the @firesidefedi live stream today. @ozoned, thank you so much for having me today. You made me feel so comfortable that I think I was able to do a good job without getting too nervous.

@bookstardust 1980年代(년대)까지는 韓國語(한국어)도 日本語(일본어)처럼 漢字(한자)를 함께 썼어요. 이제는 한글만 쓰니까 더 便(편)해졌죠!

當然(당연)하게도 現代(현대) 韓國語(한국어)는 大部分(대부분) 한글專用(전용)으로 作成(작성)되어 있기에 【日食(일식)】과 【日蝕(일식)】을 區分(구분)하는 現代(현대) 韓國語(한국어) 말뭉치는 어디에도 없는 듯… 내가 스스로 말뭉치를 만들어야 하게 생겼다. 😂

I don't like RMS, but I like some of his ideas.

The movement of European digital sovereignty feels kinda off for me.

afaict the major reason is to prevent being affected by powerful foreign governments (mainly the US). But what makes European things automatically better? We are also right wing enough here, what prevents them from being enshitificated by the own European governments and even EU?

The focus should not be whether it's European (which feels racist), but should rather about whether it's structurally dictator-resistant.

Interesting to see combinator conditions on #typescript for CLI.

This is something that's hard to do in any CLI library. Easier with typed languages, but still can be complex. Very cool to see with #optique and their approach leveraging the type system. 😎

https://optique.dev/why

Why Lean? ~ Leonardo de Moura. https://leodemoura.github.io/blog/2026-4-2-why-lean/ #LeanProver #ITP

Fedify security updates: 1.9.7, 1.10.6, 2.0.10, and 2.1.3

If you use Fedify, update to a patched release now. A high-severity denial-of-service vulnerability (CVE-2026-34148) affects Fedify's remote document loader and authenticated document loader. Both follow HTTP redirects without a redirect limit or loop detection. An attacker-controlled server can return a redirect loop for a keyId or actor URL fetch, causing a single inbound ActivityPub request to keep issuing outbound requests until the fetch times out.

All versions up to and including 2.1.0 are affected. Patched releases are 1.9.7, 1.10.6, 2.0.10, and 2.1.3. Update with your package manager:

npm update @fedify/fedify
yarn upgrade @fedify/fedify
pnpm update @fedify/fedify
bun update @fedify/fedify
deno update @fedify/fedify

After updating, redeploy. If you run other Fedify-based servers, update those too.

Thanks to Abhinav Jaswal for the report and responsible disclosure. Disclosure was coordinated with Ghost so they had time to ship their update.

If anything is unclear, ask below.

Actually, this is also one of the small reasons why I want to escape from GitHub.

On some of my old accounts like GitHub, I use the handle dahlia instead of hongminhee, which comes from a song by X JAPAN, a Japanese rock band I liked in middle school. After entering the workforce, I thought it would be better to use my real name so I stopped using it, but I have no choice but to keep it on some accounts to maintain permalinks.

@knowtheory.net Of course!

Warning to open source maintainers: the Axios supply chain attack started with some
very sophisticated social engineering targeted at one of their developers https://simonwillison.net/2026/Apr/3/supply-chain-social-engineering/

@sabrinkmann Thank you very much for your first contribution to Fedify! 🙏

My first PR has been merged into the main branch of the @fedify project! It's the first step in integrating #fep0837 into Fedify. The next step is to build on the software.
Thank you, @hongminhee, for your patience and work!
I learnt a lot about JSON-LD. I still think there is more for me to learn...

@julian When I asked @reiver last time, he said he'd make sure FediCon 2026 doesn't overlap with COSCUP 2026, but I'm not sure how it'll turn out.

@evan @trwnh I'm maintaining the @fedify/vocab package which depends on the jsonld package from Digital Bazaar. It's written in 100% TypeScript, and has worked well on production services!

@liaizon @aral I guess @PizzaV is saying Gemini CLI?

@jaz Great, the CFP for the track is now open!

https://hackers.pub/@fedidevkr/2026/fediverse-social-web-track-at-coscup-2026-cfp

FediLUG 로고 귀엽다

@evan Hi, I've filed an issue on tags.pub regarding RFC 9421 HTTP Message Signatures compatibility. tags.pub rejects Content-Digest headers with “No digest provided,” which prevents Fedify 2.1+ servers from following tags.pub accounts.

https://github.com/social-web-foundation/tags.pub/issues/22

Friends, if you haven't already, it would be a big favour to me if you could enable tags.pub to boost your public tagged posts.

Just search for @_followback in your Mastodon UI. Click the follow button there. (Don't try to follow from the profile page; it doesn't work yet.)

It will follow you back, and when you make a post with a hashtag in it, the server will boost your post from the appropriate hashtag.

#tagspub #hashtags #activitypub