Tyrian

An Elm-inspired Scala UI library for Scala 3.

The main documentation site, complete with installation instructions, is available here: tyrian.indigoengine.io/

Local build instructions

Tyrian is fairly straight forward to build locally, run the following commands from your terminal in the project root:

npm install
sbt clean update compile test +publishLocal

There is also a build.sh script in the root folder, but that also builds the docs and example projects (based on the currently released version).

Nix dev-shells

If you would like to have the environment set up without installing any dependencies globally (think node, yarn, java, etc), you can give the Nix development shells a try.

There are three different shells, which require you to enable flakes.

Main

The main dev shell combines both the jvm and js shells described below.

$ nix develop .#main

Locally you can run nix develop .#main. However, if you would like to use the same shell in a different repository, you can run the following command instead.

nix develop github:PurpleKingdomGames/tyrian#main

JVM

The default jvm dev shell ships with jdk, mill, sbt and coursier, ensuring all dependencies use the same JDK.

$ java --version
The program 'java' is not in your PATH. It is provided by several packages.

$ sbt --version
The program 'sbt' is not in your PATH. It is provided by several packages.

$ nix develop .#jvm

$ java --version
openjdk 17.0.1 2021-10-19
OpenJDK Runtime Environment (build 17.0.1+12-nixos)
OpenJDK 64-Bit Server VM (build 17.0.1+12-nixos, mixed mode, sharing)

$ mill --version
Mill Build Tool version 0.10.0
Java version: 17.0.1, vendor: N/A, runtime: /nix/store/drg31yiw0619r981n0yyv7lnziiyxwww-openjdk-headless-17.0.1+12/lib/openjdk
Default locale: en_US, platform encoding: UTF-8
OS name: "Linux", version: 5.16.10, arch: amd64

$ sbt --version
sbt version in this project: 	1.6.2
sbt script version: 1.6.2

$ cs java-home
/nix/store/drg31yiw0619r981n0yyv7lnziiyxwww-openjdk-headless-17.0.1+12

Or remotely.

nix develop github:PurpleKingdomGames/tyrian#jvm

JS

The js shell ships with node and yarn by default.

$ yarn --version
The program 'yarn' is not in your PATH. It is provided by several packages.

$ npm --version
The program 'npm' is not in your PATH. It is provided by several packages.

$ nix develop .#js

$ node --version
v16.14.0

$ npm --version
8.3.1

$ yarn --version
1.22.17

Also accessible remotely via the following command.

nix develop github:PurpleKingdomGames/tyrian#js

Can I use the old nix-shell?

Absolutely! The shell.nix file provides a flakes-compatible shell that works with nix-shell. It selects the main shell by default, but you can specify which one you want. E.g.

$ nix-shell --argstr shell jvm