From 97030e9c158198fa3975308218d4d2063ed48334 Mon Sep 17 00:00:00 2001
From: o1lo01ol1o <tim.pierson@gmail.com>
Date: Thu, 2 Dec 2021 11:25:31 +0000
Subject: [PATCH] Add nix install instructions

---
 Installation/Mac.md | 52 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/Installation/Mac.md b/Installation/Mac.md
index b328fa6..6f92e89 100644
--- a/Installation/Mac.md
+++ b/Installation/Mac.md
@@ -40,3 +40,55 @@ git clone https://github.com/hlissner/doom-emacs ~/.emacs.d
 export PATH=”$HOME/.emacs.d/bin:$PATH”
 
 ```
+
+Installing TheHoTTGame on MacOS with Nix
+========================================
+
+`Nixpkgs` maintains a set of `Agda` libraries that can be added to a derivation managed by the nix package manager. See [here](https://github.com/NixOS/nixpkgs/blob/master/doc/languages-frameworks/agda.section.md) for details.  `shell.nix` in this project contains a derivation that will add emacs, agda, the agda standard library, and cubical agda to your local nix store and subsequently to a local shell environment by adding these locations to your PATH.
+
+However, because user configurations for emacs are mutable, it will not (easily) manage your (emacs configuration) dot-files, so we will use the underlying `emacs` provided by `nixpkgs` but install `doom emacs` normally in your local user's environment.
+
+
+Install nix using `curl`: https://nixos.org/download.html
+
+In the base directory,
+```bash
+nix-shell
+```
+
+To enter a nix shell with the above packages loaded on your `PATH`.  This shell is defined by package set in `shell.nix`; after installation, to use agda libraries, you will need to use _this_ shell (or another configured similarly) to load the requisite packages onto the `PATH` so that they can be found.
+
+[Then install `doom emacs`](https://github.com/hlissner/doom-emacs) using the `nix-shell` provided `emacs`:
+
+```bash
+git clone --depth 1 https://github.com/hlissner/doom-emacs ~/.emacs.d
+~/.emacs.d/bin/doom install
+```
+
+You'll probably want to answer "yes" to the options unless you know better.
+
+[Add the doom utility to your path](https://github.com/hlissner/doom-emacs/blob/develop/docs/getting_started.org#the-bindoom-utility):
+
+> I recommend you add ~/.emacs.d/bin to your PATH so you can call doom directly and from anywhere. Accomplish this by adding this to your .bashrc or .zshrc file: ~export PATH=”$HOME/.emacs.d/bin:$PATH”~
+
+Add `agda` support to `doom` by editing your `~/.doom.d/config.el`.  In the languages section `:lang`, you'll see `;; agda`.  Replace it with `(agda +local)` to tell doom to use the `agda-mode` version specified by the local environment.
+
+Once the file is saved, sync `doom` from within the nix-shell that was loaded above:
+
+```bash
+doom sync
+```
+
+You can now load the agda source code in this by starting doom from the nix-shell:
+```bash
+doom run .
+```
+
+open the file at `0Trinitarianism/Quest0.agda`
+
+and tell `agda-mode` to load and check it by pressing `SPC m l` (`space`, `m` and `l`, in that order.)  If everything is configured correctly, you should get nice colors and any `{!!}`s will become interactive holes to fill.
+
+
+
+
+