aabs

{ nixpkgs   ? import <nixpkgs> {}
, version   ? "0.1"
, proxy     ? "http://10.183.23.58:3128"
}:

with nixpkgs;

let
    elixir     = beam.packages.erlangR21.elixir_1_7;
    nodejs     = nodejs-10_x;

tomciopp

I have tested the elixir version and it works, but have not tested the erlang version of this code. 

LisannaAtHome

Lisanna's eclectic nix troubleshooting guide for suicidal power users

tar fails with exit code 1

unpacking 'https://example.com/nixexprs.tar.xz'...
tar: Error opening archive: Failed to open '/nix/store/411sszfqfya5ad2wllmqcr15z5d30575-nixexprs.tar.xz'
error: program 'tar' failed with exit code 1

Discussion:

CMCDragonkai

Nix CA Certificate Handling

Some applications requires contacting HTTPS endpoints. In those cases you need to supply the CA certificates.

Most Nix applications won't package in the CA certificates, this is because they can make use of the OS provided CA certificate store.

The NixOS location for this is at: /etc/ssl/certs.

The OpenSSL library in Nixpkgs is compiled to use that path if there is no environment variables such as SSL_CERT_FILE.

ejpcmac

#!/bin/sh

echo

if [ ! -d "deps" ] || [ ! "$(ls -A deps)" ]; then
    printf "\e[32m=> Fetching dependencies and building the application...\e[0m\n\n"
    echo "+ mix do deps.get, compile --verbose"
    mix do deps.get, compile --verbose
    echo
fi

ejpcmac

{ pkgs ? import <nixpkgs> {} }:

with pkgs;

let
  inherit (lib) optional optionals;

  elixir = beam.packages.erlangR21.elixir_1_7;
  nodejs = nodejs-10_x;
  postgresql = postgresql100;

CMCDragonkai

An Illustration of a Nix C Package

The pkgs.nix:

import (fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/4df3426f5a5e78cef4835897a43abd9e2a092b74.tar.gz) {}

The default.nix:

ejpcmac

{ pkgs ? import <nixpkgs> {} }:

with pkgs;

let
  inherit (lib) optional optionals;

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

sconstantinides

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

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

edolstra

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