danbst

{ config, pkgs, lib, ... }: {
  imports = [
    (import <nixpkgs/nixos/modules/system/etc/etc.nix>)
  ];

  options.system.build.etc = lib.mkOption { type = lib.types.package; };
  options.system.activationScripts.etc =
    lib.mkOption { type = lib.types.unspecified; };

  config = {

danbst

Okay, I've got a need to build Firefox from source, and I'd like to do that on a remote machine, and then copy build result back to my laptop. With Nix, using bastion host. I'll note details of my successful adventure.

Setup & Sources of knowledge

Here's the list of resources I've used actively:

• https://nixos.wiki/wiki/Distributed_build
• https://nixos.org/nix/manual/#conf-trusted-substituters and various other configuration parameters
• https://github.com/NixOS/nixpkgs/blob/release-19.09/nixos/modules/services/misc/nix-daemon.nix which contains mappings from Nix config names to NixOS config names (damn, they are different!)

Here's my setup:

danbst

Pure Nix Minecraft launchers

1. Download .nix file

2. Run:

   $ nix run -f all-minecrafts.nix versions.v1_8_9.client -c minecraft

3. Enjoy (…​power of fixed-output derivations)!

danbst

Hey let’s start a list:

1. Yeah, all good.

   a bit of code.
   Oh wow, it is indented compared to markdown!

   A bit of text. Wow, it is indeted as well!

danbst

I use separate Firefox profiles for work and personal stuff. To distinguish those I place them on different workspaces.

• Workspace 0: firefox --no-remote -P MyJob
• Workspace 1: firefox --no-remote -P default

I have also company Slack on Workspace 0. Which usually contains links to some work stuff.

The problem

danbst

create extension "uuid-ossp";
-- https://www.postgresql.org/docs/current/bloom.html
create extension bloom;

CREATE or replace FUNCTION hashuuid(u uuid) RETURNS integer AS $$
DECLARE
   a bytea := uuid_send(u);
BEGIN
   RETURN (get_byte(a, 3) << 24) + (get_byte(a, 2) << 16) + (get_byte(a, 1) << 8) + get_byte(a, 0);
END;

danbst

timeSpent = 0;
timeStarts = 0

browser.tabs.onActivated.addListener((activeInfo) => {
    browser.tabs.sendMessage(
        activeInfo.tabId,
        {timeSpent: timeSpent}
    ).then(response => {
        timeStarts = (new Date).getTime();
    }).catch(error => {

danbst

let
  sub = { config, lib, parentConfig, ...}: {
      options.foo = lib.mkOption {
          type = lib.types.bool;
          default = parentConfig.bar;
      };
  };

in { config, lib, ...}: {
    options.bar = lib.mkOption { type = lib.types.bool; default = true; };

danbst

...

 inherit (import ../servers/sql/postgresql-default.nix pkgs super)
    postgresql
    postgresqlPackages
    postgresql_9_4
    postgresql_9_5
    postgresql_9_6
    postgresql_10
    postgresql_11

danbst

nixos executable

Basic features:

• installable as package, even on non-nixos
• is named nixos
• is written in C++ and binds to Nix C++ library (or maybe Haskell? Nodejs? What you think?)
• autocomplete, ncurses, Nix 2.0
• commit to Git by default on each rebuild

Subcommands