Improve nix builds #43

	name: Build

	on:
	push:
	branches: [ "master" ]
	paths:
	- 'Interval/**'
	- 'Interval.Tests/**'
	- '.github/**'
	pull_request:
	paths:
	- 'Interval/**'
	- 'Interval.Tests/**'
	- '.github/**'

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	with:
	token: ${{ github.token }}

	- name: Setup .NET
	uses: actions/setup-dotnet@v4
	with:
	dotnet-version: 6.0.x

	- name: Install Nix
	uses: cachix/install-nix-action@v24
	with:
	# Mostly to avoid GitHub rate limiting
	extra_nix_config: \|
	access-tokens = github.com=${{ github.token }}

	- name: Install Nix Cache
	uses: DeterminateSystems/magic-nix-cache-action@main

	- name: Build
	run: nix develop .#ci --impure -c just build
	- name: Tesst
	run: nix develop .#ci --impure -c just test

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