Hello, I'm an open source software engineer in my late 30s living in #Seoul, #Korea, and an avid advocate of #FLOSS and the #fediverse.
I'm the creator of @fedify, an #ActivityPub server framework in #TypeScript, @hollo, an ActivityPub-enabled microblogging software for single users, and @botkit, a simple ActivityPub bot framework.
Deno 2.5 is out — ⭐ Permission sets in config ⭐ Setup and teardown APIs to Deno.test ⭐ HTML entrypoint support in deno bundle ⭐ Runtime API for deno bundle
난 이 글에 동의하지 않는데, 여러 측면에서 그렇지만, 한 측면에만 집중해서 얘기해 보자면: 좋은 아키텍처는 훌륭한 프로그래머를 요구하지만 타입 시스템은 훌륭한 프로그래머를 요구하지 않기 때문이다.
누구나 훌륭한 프로그래머가 되어야만 하는가? 혹은 될 수 있는가? 좋은 아키텍처를 그릴 수 있는 훌륭한 프로그래머가 아니라면 소프트웨어 개발을 해서는 안 될까? 좋은 아키텍처에만 의존하는 것은 잠재적으로 엘리트주의를 끌어들이기 쉽다: 「어떤 시스템이 오작동하는 것은 아키텍처가 나쁘기 때문이다. 아키텍처가 나쁜 이유는 그걸 설계한 프로그래머가 수준 미달이기 때문이다」와 같이.
반면 타입 시스템은 일단 도입만 하면 누구나 그 덕을 볼 수 있다. 팀 내의 프로그래머들의 역량이 뛰어나든 뛰어나지 않든. 훨씬 평범한 보통 사람에게 유리하다. 타입 시스템이 미봉책일 수는 있지만, 그 미봉책이 더 많은 사람들을 프로젝트에 참여할 수 있게 해준다고 생각한다.
We're excited to share an update on #Fedify's development! While we're actively working on Fedify 1.9 in the main branch, we've also begun preparations for Fedify 2.0 in the next branch.
Before you get too excited about revolutionary new features, we want to set clear expectations: Fedify 2.0 will primarily focus on cleaning up technical debt that we couldn't address due to backward compatibility constraints. This means removing deprecated APIs and making breaking changes that will ultimately result in a cleaner, more maintainable codebase. Think of it as a major housekeeping release—necessary work that will make Fedify better in the long run.
Some of the planned improvements include adding readonly modifiers throughout our types and interfaces to better enforce our immutability-by-default principle, implementing our own RFC 6570 URI Template library for symmetric expansion and pattern matching, and various CLI tool migrations to our new Optique framework for better cross-runtime support. While the majority of changes will be about refinement rather than revolution, these updates will strengthen Fedify's foundation and improve interoperability across the #fediverse. You can track all planned changes in detail by checking out the Fedify 2.0 milestone on our GitHub repository.
Found a new web-based fediverse app that looks nice and supports MFM and Emoji. Works great with IceShrimp.NET. (thanks to JoinMastodon.org app listings)
Edit: oh! It works with Hollo, too - I always forget that Hollo supports emoji reacts.
I respect all the hard work, but this is an issue for *every* web site and browser/standards folks seem like not prioritizing this with <input type="emoji"> or some JS method to invoke OS emoji pickers 🤷♂️
We've implemented the node:http client and server APIs in Cloudflare Workers, allowing developers to migrate existing Node.js applications with minimal code changes. This post explains how we built a bridge between the Workers serverless environment and Node.js's traditional HTTP model, complete with examples for running frameworks like Express.js at the edge. https://blog.cloudflare.com/bringing-node-js-http-servers-to-cloudflare-workers/
ALT text detailsWe assume that you have experience in creating web applications using HTML and HTTP, and that you understand command-line interfaces, SQL, JSON, and basic JavaScript. However, you don't need to know TypeScript, JSX, ActivityPub, or Fedify—we'll teach you what you need to know about these as we go along.
(That last sentence is highlighted for importance.)
Finished the basic tutorial for #Fedify - I can now Follow and Unfollow the "me" account. Lots of useful debugging and dev tools built in, too.
I think what's most interesting about this framework is that there are quite a few AP vocabulary activitites available to you above and beyond the Mastodon mainstream.
Would love to tinker around with Offer, Reject, Listen, Question, Read
대부분의 액티비티펍 소프트웨어 인스턴스는 멀쩡하게 365일 24시간 동일한 위치에서 운영이 되고 있다고 가정이 된다. 내가 글을 올리면, 나를 팔로우 중인 모든 사람들의 inbox에 내가 글을 올렸다(Create(Note))는 Activity가 전달이 되는데, 각자가 운영되고 있는 서버 인스턴스가 멀쩡히 살아있다면.... 딱히 문제가 되지는 않는다.
문제는, 게시글을 작성하는 시점에 팔로워 중 누군가의 인스턴스가 죽어있을때도 있다는 점이다. 그런 경우를 대비해서 exponential backoff를 쓰든 아무튼 fallback 알고리즘이 동작하긴 하는데, 서버가 살아나면 당연히 전달이야 잘 되긴 한다. 그런데, Activity 전달이 실패하는 일이 잦으면 어떤 액티비티펍 소프트웨어를 쓰던간에 retry를 하기 위해서 계속해서 Queue에 쌓이고, 최종적으로는 Queue에 쌓인 것 때문에 적지 않은 오버헤드가 있을 것 같은데 모더레이터의 입장에선 어느 정도까지 감안할 수 있는가? 라는 생각이 문득 들었다.
사실 내가 왜 이런 글을 쓰고 있냐면, 위에서도 언급했다시피, 로컬호스트에서 실제로 서비스를 (맥북이 켜져있을때만) 서빙하고 있고 그걸 Tailscale로 연결해서 터널링을 하고 있다. 즉, 맥북을 켜놓고 있으면 Create(Note) Activity가 정상적으로 잘 전달되고, 맥북이 꺼져있으면 Activity 전달이 안되고 있다. 실제로, 이런 맥락에서 지금 테스트 중인 두 개의 인스턴스가 있다. 이런 실험적인 시도를 하면서 이래도 되는게 맞나 싶은 생각도 들고는 있다. 맥북을 켜놓으면, retry되고 있는 것도 다 consume되긴 하겠지만.... 찝찝하긴 찝찝하다.
개발하는 입장이라고 선해를 할 수는 있어도, 비뚤어진 관점에서 해석하면 누군가는 어뷰징의 관점으로 해석할 수 있는 가능성이 적지는 않다고 생각하고 있다. 이런 경우엔 모더레이터되는 분들한테, 내가 이런 tailscale 도메인으로 서빙하고 있다고 통지라도 하는게 나으려나... 아니면, 내가 구매해놓은 도메인을 tailscale 도메인으로 CNAME 걸어놓고 "이런 도메인으로 서비스 걸어놓을 예정이니까 이 도메인만은 제발 차단하지 말아주십쇼 헤헤" 라고 해야하나... 아예 서버를 만드는거다보니까 이런 고려사항이 생기는 것 같다.
근데, 한 편으로는 이런 생각이 든다. 물리적인 서버의 위치를 옮길 가능성이 많은 환경(예를 들면, 전시 상황)이면 어떡하지? ActivityPub이 사실은 분산된 웹 환경을 위해 나온 프로토콜이긴 하지만, 분산된 웹 환경이라는게 물리적으로 각자 다른 위치에 오랫동안 배치가 되어 있는 서버 뿐만이 아니라 위치가 자주 바뀔 수 있는 서버도 연합의 대상으로 포함이 될 수 있다면? 어떤 공상과학 영화(ex. 터미네이터4)들을 보면, 저항군이 독자적인 라디오 기지국 같은거 만들고 위치도 매번 다른 곳으로 옮기고 주파수를 매번 다르게 설정하면서 소식전달하는 모습을 볼 수 있는데, 액티비티펍도 어떻게 보면 그걸 고려한 설계도 포함될 수 있지 않나... 그런 생각도 든다..
클러스터화는 단점이기도 하지만 장점이기도 한게 제가 생각하기에 다른 커뮤니티 서비스랑 트위터류의 가장 큰 차이점은 적당한? 느슨한? 클러스터화라고 생각하거든요 트위터만 봐도 인플루언서-like하게 사용하는 사람도 자기들끼리 노는 사람도 있는데 되게 그런 사람들간에 사용 형태와 목적이 판이하게 다를탠데 동시에 같은 트위터에 존재하면서도 디스코드같은 아예 클러스터가 완전히 분리된 동네하고는 다르게 그 클러스터들 사이에도 느슨한 연결고리가 존재한다는게 매력이라고 생각해요
I have this bad habit. When something annoys me enough times,
I end up building a library for it. This time, it was CLI validation code.
See, I spend a lot of time reading other people's code. Open source projects,
work stuff, random GitHub repos I stumble upon at 2 AM. And I kept noticing this
thing: every CLI tool has the same ugly validation code tucked away somewhere.
You know the kind:
if (!opts.server && opts.port) { throw new Error("--port requires --server flag");}if (opts.server && !opts.port) { opts.port = 3000; // default port}// wait, what if they pass --port without a value?// what if the port is out of range?// what if...
It's not even that this code is hard to write. It's that it's everywhere.
Every project. Every CLI tool. The same patterns, slightly different flavors.
Options that depend on other options. Flags that can't be used together.
Arguments that only make sense in certain modes.
And here's what really got me: we solved this problem years ago for other types
of data. Just… not for CLIs.
The problem with validation
There's this blog post that completely changed how I think about parsing.
It's called Parse, don't validate by Alexis King. The gist? Don't parse data
into a loose type and then check if it's valid. Parse it directly into a type
that can only be valid.
Think about it. When you get JSON from an API, you don't just parse it as any
and then write a bunch of if-statements. You use something like Zod to parse
it directly into the shape you want. Invalid data? The parser rejects it. Done.
But with CLIs? We parse arguments into some bag of properties and then spend
the next 100 lines checking if that bag makes sense. It's backwards.
So yeah, I built Optique. Not because the world desperately needed another CLI
parser (it didn't), but because I was tired of seeing—and writing—the same
validation code everywhere.
Three patterns I was sick of validating
Dependent options
This one's everywhere. You have an option that only makes sense when another
option is enabled.
The type system now understands that when server is false, port literally
doesn't exist. Not undefined, not null—it's not there. Try to access it and
TypeScript yells at you. No runtime validation needed.
Mutually exclusive options
Another classic. Pick one output format: JSON, YAML, or XML. But definitely not
two.
I used to write this mess:
if ((opts.json ? 1 : 0) + (opts.yaml ? 1 : 0) + (opts.xml ? 1 : 0) > 1) { throw new Error('Choose only one output format');}
(Don't judge me, you've written something similar.)
Now?
const format = or( map(option("--json"), () => "json" as const), map(option("--yaml"), () => "yaml" as const), map(option("--xml"), () => "xml" as const));
The or() combinator means exactly one succeeds. The result is just
"json" | "yaml" | "xml". A single string. Not three booleans to juggle.
Environment-specific requirements
Production needs auth. Development needs debug flags. Docker needs different
options than local. You know the drill.
Instead of a validation maze, you just describe each environment:
No auth in production? Parser fails immediately. Trying to access --auth in
dev mode? TypeScript won't let you—the field doesn't exist on that type.
“But parser combinators though…”
I know, I know. “Parser combinators” sounds like something you'd need
a CS degree to understand.
Here's the thing: I don't have a CS degree. Actually, I don't have any degree.
But I've been using parser combinators for years because they're actually… not
that hard? It's just that the name makes them sound way scarier than they are.
I'd been using them for other stuff—parsing config files, DSLs, whatever.
But somehow it never clicked that you could use them for CLI parsing until
I saw Haskell's optparse-applicative. That was a real “wait, of course”
moment. Like, why are we doing this any other way?
Turns out it's stupidly simple. A parser is just a function. Combinators are
just functions that take parsers and return new parsers. That's it.
// This is a parserconst port = option("--port", integer());// This is also a parser (made from smaller parsers)const server = object({ port: port, host: option("--host", string())});// Still a parser (parsers all the way down)const config = or(server, client);
No monads. No category theory. Just functions. Boring, beautiful functions.
TypeScript does the heavy lifting
Here's the thing that still feels like cheating: I don't write types for my CLI
configs anymore. TypeScript just… figures it out.
TypeScript knows that if action is "deploy", then environment exists but
version doesn't. It knows replicas is a number. It knows force is
a boolean. I didn't tell it any of this.
This isn't just about nice autocomplete (though yeah, the autocomplete is great).
It's about catching bugs before they happen. Forget to handle a new option
somewhere? Code won't compile.
What actually changed for me
I've been dogfooding this for a few weeks. Some real talk:
I delete code now. Not refactor. Delete. That validation logic that used to
be 30% of my CLI code? Gone. It feels weird every time.
Refactoring isn't scary. Want to know something that usually terrifies me?
Changing how a CLI takes its arguments. Like going from --input file.txt to
just file.txt as a positional argument. With traditional parsers,
you're hunting down validation logic everywhere. With this?
You change the parser definition, TypeScript immediately shows you every place
that breaks, you fix them, done. What used to be an hour of “did I catch
everything?” is now “fix the red squiggles and move on.”
My CLIs got fancier. When adding complex option relationships doesn't mean
writing complex validation, you just… add them. Mutually exclusive groups?
Sure. Context-dependent options? Why not. The parser handles it.
But honestly? The biggest change is trust. If it compiles, the CLI logic works.
Not “probably works” or “works unless someone passes weird arguments.”
It just works.
Should you care?
If you're writing a 10-line script that takes one argument, you don't need this.
process.argv[2] and call it a day.
But if you've ever:
Had validation logic get out of sync with your actual options
Discovered in production that certain option combinations explode
Spent an afternoon tracking down why --verbose breaks when used with
--json
Written the same “option A requires option B” check for the fifth time
Then yeah, maybe you're tired of this stuff too.
Fair warning: Optique is young. I'm still figuring things out, the API might
shift a bit. But the core idea—parse, don't validate—that's solid.
And I haven't written validation code in months.
Still feels weird. Good weird.
Try it or don't
If this resonates:
Tutorial: Build something real, see if you hate it
I'm not saying Optique is the answer to all CLI problems. I'm just saying
I was tired of writing the same validation code everywhere, so I built something
that makes it unnecessary.
Take it or leave it. But that validation code you're about to write?
You probably don't need it.
The concept of the "male socialization" of trans women is deeply problematic. Most of the time when people use that phrase, it's to degender and degrade trans women and make them out to be less women than their cis counterparts. When people go down that path of reasoning, it's usually toxic and leads to a lot of wrong conclusions.
We often never got the kind of male privilege that people assume we did because we looked like dudes. The reality is that bullies often pick up on our gender differences even if we don't and it can get dark. We also didn't have boyhoods. Just because our parents dressed us in blue and bought us baseball hats doesn't mean we have the same relationship to those things that cis guys do. Often, it's some weird, fucked up mix.
But...
We also didn't have "normal" girlhoods, either, and this can leave a huge hole.
One of the things I'm constantly self-conscious about when trying to relate to cis women is that there's this vast swath of girlhood experiences that they just take for granted and assume every woman has.
I don't.
Now, yes, those assumptions are generally rubbish because they're heavily dependant on culture, race, and class. But even then, there are still common threads. I'm missing all the threads.
When talking to other women, I rely a lot on the experiences I've had over just the last 3 years as well as things I've read and things I watched my sisters go through. I have a few distinctly girl childhood experiences I can draw on as well but not many. The whole time I worry that I'm going to slip up and say the wrong thing. Or maybe they'll say something that assumes a shared experience and I'll just sit there dumbfounded because I know that's a common girl experience but I've got no clue.
Sometimes those interactions can be weirdly affirming because you know they see you as a girl subconsciously when they start making those assumptions rather than assuming "male socialization" (🤮) but it can still leave you dumbfounded and speechless.
The only thing I can say is that it does seem to be getting better with time, both as I form new authentically feminine experiences as an adult and as I grow in confidence. But still it's hard and I feel that hole in basically every relationship I have with a cis woman. 😢
