-
To provide Nix repositories with an easy and standard way to reference other Nix repositories.
-
To allow such references to be queried and updated automatically.
-
To provide a replacement for
nix-channel
,NIX_PATH
and Hydra
Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would
-
nix-channel
and~/.nix-defexpr
are gone. We'll use$NIX_PATH
(or user environment specific overrides configured vianix set-path
) to look up packages. Since$NIX_PATH
supports URLs nowadays, this removes the need for channels: you can just set$NIX_PATH
to e.g.https://nixos.org/channels/nixos-15.09/nixexprs.tar.xz
and stay up to date automatically. -
By default, packages are selected by attribute name, rather than the
name
attribute. Thusnix install hello
is basically equivalent tonix-env -iA hello
. The attribute name is recorded in the user environment manifest and used in upgrades. Thus (at least by default)hello
won't be upgraded tohelloVariant
.@vcunat suggested making this an arbitrary Nix expression rather than an attrpath, e.g.
firefox.override { enableFoo = true; }
. However, such an expression would not have a key in the user environment, unlike an attrpath. Better to require an explicit flag for this.
TBD: How to deal with search path clashes.
[Plover][] is an awesome open source stenography program, but to run the software [you need an NKRO keyboard][nkro]. The [ErgoDox keyboard][ergodox] can be made to run in NKRO mode by following these steps.
These instructions are based on this document, which assumes you're using Windows. I'm using a mac, and I had to download and install the [CrossPack for AVR Development][crosspack] before the build process worked.
The NKRO firmware and Plover keymap can be found in the simon_layout
branch of @shayneholmes fork of tmk_keyboard
. Get the source: