2025-09-29
stupid jj tricks
andre.arko.net/2025/09/28/stupid-jj-tricksWelcome to “stupid jj tricks”. Today, I’ll be taking you on a tour through many different jj configurations that I have collected while scouring the internet. Some of what I’ll show is original research or construction created by me personally, but a lot of these things are sourced from blog post, gists, GitHub issues, Reddit posts, Discord messages, and more.
2025-09-23
Cap'n Web: A new RPC system for browsers and web servers
blog.cloudflare.com/capnweb-javascript-rpc-libraryCap'n Web is a new open source, JavaScript-native RPC protocol for use in browsers and web servers. It provides the expressive power of Cap'n Proto, but with no schemas and no boilerplate.
2025-08-25
Everything I know about good API design
www.seangoedecke.com/good-api-design2025-08-12
missing.css
missing.style2025-06-20
Cursed Knowledge | Immich
immich.app/cursed-knowledgeThings we wish we didn't know
2025-06-18
You can use `fzf` to review git commits
jvns.ca/til/fzf-preview-git-commitsI just learned that
you can use it to review a git commit like this and I thought that was really
cool.
2025-06-17
Debugging tricks for IntelliJ
andreabergia.com/blog/2025/06/debugging-tricks-for-intellijI have been using IntelliJ Idea at work for a decade or so by now, and it’s been a reliable companion. JetBrains IDEs have a bit of a reputation for being slow, but their feature set is incredible: powerful refactoring tools, a great VCS UI (though I like magit even more!), a huge number of supported frameworks, integration with just about any testing library for any language, code coverage tools, powerful debuggers, etc.
2025-05-15
Speculation in JavaScriptCore
webkit.org/blog/10308/speculation-in-javascriptcoreThis post is all about speculative compilation, or just speculation for short, in the context of the JavaScriptCore virtual machine.
2025-05-06
Debian installation with encrypted BTRFS
chaos.tomaskral.eu/guides/debian-encrypted-btrfs-root2025-03-18
CASCII - ASCII Diagram Builder
cascii.appA well-equipped ASCII diagram builders freely available on the internet.
It stresses portability, simplicity, and immediateness.
2025-01-17
Earthstar
earthstar-project.orgStorage for private, distributed, offline-first applications. Earthstar is a specification and JavaScript library for building connected applications owned and run by their users.
2024-10-10
Gnome Files: A detailed UI examination | datagubbe.se
www.datagubbe.se/gnomefiles2024-09-30
On Leaving Apple
typesanitizer.com/blog/leaving-apple.html2024-09-25
in which interactive development saves the day
technomancy.us/1892024-08-08
More than 200 orphaned Debian packages moved to git, 216 to go
www.hungry.com/~pere/blog/More_than_200_orphaned_Debian_packages_moved_to_git__216_to_go.html2024-06-24
Deriving Dependently-Typed OOP from First Principles -- Extended Version with Additional Appendices
arxiv.org/abs/2403.06707The expression problem describes how most types can easily be extended with new ways to produce the type or new ways to consume the type, but not both. When abstract syntax trees are defined as an algebraic data type, for example, they can easily be extended with new consumers, such as print or eval, but adding a new constructor requires the modification of all existing pattern matches. The expression problem is one way to elucidate the difference between functional or data-oriented programs (easily extendable by new consumers) and object-oriented programs (easily extendable by new producers). This difference between programs which are extensible by new producers or new consumers also exists for dependently typed programming, but with one core difference: Dependently-typed programming almost exclusively follows the functional programming model and not the object-oriented model, which leaves an interesting space in the programming language landscape unexplored. In this paper, we explore the field of dependently-typed object-oriented programming by deriving it from first principles using the principle of duality. That is, we do not extend an existing object-oriented formalism with dependent types in an ad-hoc fashion, but instead start from a familiar data-oriented language and derive its dual fragment by the systematic use of defunctionalization and refunctionalization. Our central contribution is a dependently typed calculus which contains two dual language fragments. We provide type- and semantics-preserving transformations between these two language fragments: defunctionalization and refunctionalization. We have implemented this language and these transformations and use this implementation to explain the various ways in which constructions in dependently typed programming can be explained as special instances of the phenomenon of duality.
2024-06-20
Go's 'range over function' iterators and avoiding iteration errors
utcc.utoronto.ca/~cks/space/blog/programming/GoIteratorsAndAvoidingMistakes2024-06-13
Macaroons Escalated Quickly
fly.io/blog/macaroons-escalated-quicklyAvoid Linux locking up in low memory situations using earlyoom
dataswamp.org/~solene/2022-09-28-earlyoom.htmlThis article presents the program earlyoom to prevent a Linux system to lock up in low memory situations.
2024-06-11
Self-serve dashboards
briefer.cloud/blog/posts/self-serve-bi-mythSales pitches are the only place where “self-serve dashboards" work. In the real world, it's a different story.
Why "business" people don't use metabase/power-bi.