reflex-platform
direnv
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reflex-platform | direnv | |
---|---|---|
10 | 159 | |
714 | 11,697 | |
0.8% | 2.0% | |
8.3 | 8.7 | |
3 months ago | 14 days ago | |
Nix | Go | |
BSD 3-clause "New" or "Revised" License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
reflex-platform
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The Haskell job market has been growing steaily since 2008
We used reflex-frp, so our app was a webview that worked on localhost and Android. The docs say it also works on iOS but we don't have an iPhone.
The process was learning Functional Reactive Programming, then learning reflex-frp, then getting a contract with obsidian (creators of reflex) for one hour a week where we could ask questions.
( https://github.com/reflex-frp/reflex-platform )
We had a grant requirement to create a phone client for Tahoe-LAFS, a Python application with a bunch of dependencies, including ZFEC, a forward error correction library.
( https://tahoe-lafs.readthedocs.io/ )
( https://github.com/tahoe-lafs/zfec/ )
We needed bug for bug compatibility with the Python codebase, so I ran Tahoe on localhost and tested the Haskell client against the Python server. We used servant to build the API, since it builds both client and server side from the same description.
( https://hackage.haskell.org/package/servant )
- Resurrection/modernization of an old Haskell+Haste project (boardgame Yinsh)
- reflex-platform and ghc version
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Exploring ideas in Haskell
The type classes do take a toll on performance, but in reflex-platform we change GHC's default flags to make the situation a lot better. It's still not ideal, but our performance winds up being OK for real applications. The most important part is that the performance scales reasonably well as the application grows. It might probably be good at some point to use backpack instead of a typeclass so that specialization can be enforced - though I'd prefer if GHC gave a way to just force specialization more effectively.
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Any News On Haskell For Android ?
Obelisk / reflex-platform contain nix-based solutions to building Haskell code for mobile, so you might be interested in checking out how they do it (or just using them).
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Creating a Haskell Application Using Reflex. Part 1
In this series of posts, we will describe how a Haskell web application can be developed using reflex-platform. reflex-platform offers reflex and reflex-dom packages. reflex package is the Haskell implementation of Functional reactive programming (FRP). reflex-dom library contains a large number of functions, classes, and types used when dealing with DOM. The packages are separated as it is possible to use the FRP approach not only for web-development. We will develop theTodo List application that allows carrying out various manipulations on the task list.
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[JOBS] Obsidian Systems is Hiring
reflex-platform
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Setting up Reflex with VS Code in WSL
To clarify the situation, the canonical way to develop reflex-dom projects is to start from the reflex-platform. See here: https://github.com/reflex-frp/reflex-platform/blob/develop/docs/project-development.rst
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Nix - WSL - no C compiler provided for this platform
This might also be coming from the tests of the library (even if they can run in the browser, their tests might not). You can disabled tests using an overrides attribute in project.nix (if using reflex-stone). You can see what it should look like here : https://github.com/reflex-frp/reflex-platform/blob/develop/project/default.nix#L79. You should add this attribute at the same level where "useWarp = true;" is. This should then have lines like "diagrams = pkgs.haskell.lib.dontCheck super.diagrams;" for example if you want to disable the tests for the diagrams package.
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Can I embed Reflex-FRP in a larger site?
then you compile to js using ghcjs like this, then closure compile and gzip it to get the size way down. Then it just becomes a normal script you include wherever you need it.
direnv
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Show HN: Dotenv, if it is a Unix utility
I think direnv already does a good job in this space, and it's already available in your package manager.
https://direnv.net/
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Mise is a polyglot tool version manager
I switched from asdf to mise after a comment on lobste.rs[1] suggested I do so a few months ago, and I have been very happy with it.
It sands off some of asdf's sharp UI edges and provides a somewhat larger but still reasonable feature set; I've also replaced most of my direnv[2] usage with it.
The mise -> asdf comparison page is useful[3]
1: https://lobste.rs/s/66uxbj/how_love_homebrew#c_mvmsjp
2: https://direnv.net/
3: https://mise.jdx.dev/dev-tools/comparison-to-asdf.html
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Nix-direnv is a quality of life improvement
I also made the export diff configurable, motivated by this post: https://github.com/direnv/direnv/pull/1233
- Direnv – Unclutter Your .profile
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Conditional Git Configuration
Nice.
For years I've been using [direnv](https://direnv.net/) for this, setting environment variables which git picks up. This looks like a more feature complete equivalent, although to be honest I only really need switching of committer email and the SSH key used.
- FLaNK 25 December 2023
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Development Environments with Guix, similar to devenv.sh
Direnv, for the uninitiated, loads and unloads environment variables when directories are entered and exited. Under every project folder there is a `$PROJ_DIR/.envrc` which contains:
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Emacs Advent Calendar 9: devdocs, code-cells, dREPL, etc.
buffer-env: A pure-Elisp version of the direnv utility. Useful to make Emacs aware of Python virtualenvs (which, judging by the questions posted here, is unfortunately still a complication for a lot of people). Similar to (and inspired by) envrc, but doesn't require the direnv program.
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golang cli vs env var in windows?
You can look at direnv to see this in action as they wrote shell hooks that get loaded into the shell profile and are executed on every prompt. https://direnv.net/
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Nix Survival Mode: macOS upgrades won't break Nix anymore
Yes, most Nix users employ https://direnv.net or the equivalent for your IDE of choice. Emacs for instance has https://github.com/purcell/envrc which set per-buffer variables.
What are some alternatives?
obelisk - Functional reactive web and mobile applications, with batteries included.
spaceship-prompt - :rocket::star: Minimalistic, powerful and extremely customizable Zsh prompt
Yampa - Functional Reactive Programming domain-specific language for efficient hybrid systems
Pipenv - Python Development Workflow for Humans.
vscode-ghc-simple - Simple GHC (Haskell) integration for VSCode
lorri - Your project's nix-env
hackcell - Apecs + SDL2 roguelike
Home Manager using Nix - Manage a user environment using Nix [maintainer=@rycee]
nixkell - A simple Nix-Haskell skeleton
Neovim-from-scratch - 📚 A Neovim config designed from scratch to be understandable
nix - Nix, the purely functional package manager
Poetry - Python packaging and dependency management made easy