Attila Gulyas toraritte

How to install a Progressive Web App

Progressive Web Apps (or PWAs) work across browsers and devices. When installed they may include offline support.

iOS Safari

Visit the app’s website
Click the export icon on Safari’s bottom bar
Scroll the options and select “Add to Home Screen”

This document contains some ideas for additions to the Nix language.

Motivation

The Nix package manager, Nixpkgs and NixOS currently have several problems:

Poor discoverability of package options. Package functions have function arguments like enableFoo, but there is no way for the Nix UI to discover them, let alone to provide programmatic ways to

xmonad default key bindings

Action key bindings

Key binding	Action
`mod` - `shift` - `slash`	Run xmessage with a summary of the default keybindings (useful for beginners)
`mod` - `shift` - `return`	Launch terminal
`mod` - `p`	Launch dmenu
mod - shift - p	Launch gmrun

Installing Nix on macOS in single-user mode

$ curl https://nixos.org/nix/install | sh

Found all these from nix-repl. Use builtins.fetchTarball for nixpkgs pinning!

builtins.fetchurl
builtins.fetchTarball
pkgs.fetchFromBitbucket
pkgs.fetchFromGitHub
pkgs.fetchFromGitLab
pkgs.fetchFromRepoOrCz
pkgs.fetchFromSavannah

Lower precedence means a stronger binding; ie. this list is sorted from strongest to weakest binding, and in the case of equal precedence between two operators, the associativity decides the binding.

Prec	Abbreviation	Example	Assoc	Description
1	SELECT	`e . attrpath [or def]`	none	Select attribute denoted by the attribute path `attrpath` from set `e`. (An attribute path is a dot-separated list of attribute names.) If the attribute doesn’t exist, return `default` if provided, otherwise abort evaluation.
2	APP	`e1 e2`	left	Call function `e1` with argument `e2`.
3	NEG	`-e`	none	Numeric negation.
4	HAS_ATTR	`e ? attrpath`	none	Test whether set `e` contains the attribute denoted by `attrpath`; return true or false.
5	CONCAT	`e1 ++ e2`	right	List concatenation.
6	MUL	`e1 * e2`	le

If you want a run-down of the 1.3 changes and the design decisions behidn those changes, check out the LonestarElixir Phoenix 1.3 keynote: https://www.youtube.com/watch?v=tMO28ar0lW8

To use the new phx.new project generator, you can install the archive with the following command:

$ mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez

Bump your phoenix dep

Phoenix v1.3.0 is a backwards compatible release with v1.2.x. To upgrade your existing 1.2.x project, simply bump your phoenix dependency in mix.exs:

	{ pkgs ? import <nixpkgs> {} }:

	with pkgs;

	let
	inherit (lib) optional optionals;

	erlangDrv = { mkDerivation }:
	mkDerivation rec {
	version = "21.0";

	function Get-DirectoryContent {

	<#
	.SYNOPSIS

	Function to get directory content
	.EXAMPLE

	Get-DirectoryContent -Path "C:\" -HeaderName "poshserver.net" -RequestURL "http://poshserver.net" -SubfolderName "/"

	with import <nixpkgs> {};

	stdenv.mkDerivation rec {
	name = "env";
	env = buildEnv { name = name; paths = buildInputs; };
	buildInputs = [
	yarn
	nodejs-6_x
	elixir
	postgresql96