Mummy likes better docs~

README.md

@@ -66,6 +66,85 @@ So if you set `CARGO_MOMMYS_ROLES="daddy"`, `CARGO_MOMMYS_PRONOUNS="his/their"`,
 
 And so on~ 💓
 
+<details>
+
+<summary>
+OS-specific information:
+</summary>
+
+### For macOS, Linux, BSD (or any sufficiently Unix-like operating system)
+
+You're probably using [Zsh](https://zsh.sourceforge.io/) or [Bash](https://www.gnu.org/software/bash/) as your login shell, to check - open up a terminal window (Terminal.app or [iTerm2](https://github.com/gnachman/iTerm2) on macOS; [Console](https://gitlab.gnome.org/GNOME/console), [Terminal](https://gitlab.gnome.org/GNOME/gnome-terminal), [Konsole](https://github.com/KDE/konsole), [Kitty](https://github.com/kovidgoyal/kitty), or [Alacritty](https://github.com/alacritty/alacritty) most likely anywhere else) and run `echo $SHELL`.
+
+You can see all of your current settings by running `export -p | grep CARGO_MOMMY`.
+
+Depending on the one you have, you'll have to modify the contents of your rcfile (with [vim](https://github.com/vim/vim), [nano](https://nano-editor.org/), [helix](https://github.com/helix-editor/helix) etc.), or create one if it doesn't exist.
+
+- Bash:
+  Change `~/.bashrc` to include your settings. Set them with `export VAR_NAME=value`, for example:
+
+  ```sh
+  $ cat ~/.bashrc
+
+    export CARGO_MOMMYS_LITTLE="boy"
+    export CARGO_MOMMYS_ROLES="daddy"
+    export CARGO_MOMMYS_PRONOUNS="his"
+    export CARGO_MOMMYS_MOODS="yikes"
+  ```
+
+- Zsh:
+  Change `~/.zshenv`. Set them with `export VAR_NAME=value`, for example:
+
+  ```sh
+  $ cat ~/.zshenv
+
+    export CARGO_MOMMYS_LITTLE="girlie"
+    export CARGO_MOMMYS_ROLES="momma"
+    export CARGO_MOMMYS_PRONOUNS="her/their"
+    export CARGO_MOMMYS_MOODS="chill/thirsty"
+  ```
+
+To remove any of the settings, simply delete the associated line in the file.
+
+### For our dear Windows friends:
+
+To check which settings you're currently using, open a Command Prompt or Powershell window (a quick way to do this is to press `Windows` + `X` on your keyboard), and type:
+
+- For Command Prompt:
+
+  ```sh
+  > set | find "CARGO_MOMMY"
+  ```
+
+- For Powershell (now might be a good time to learn the difference between Windows `powershell.exe` and Microsoft `pwsh.exe`):
+
+  ```powershell
+  > Get-Item Env:\CARGO_MOMMY*
+  ```
+
+It's simultaneously easier and harder to set environment variables on Windows - soo many ways are available, but the easiest are:
+
+- You can use the Control Panel by:
+  1. Going to Start, 
+  2. Searching "path" and clicking the "Edit the system environment variables" option, 
+  3. Then "Environment Variables", 
+  4. And finally, "New" (or whichever button is appropriate) under the "User" section (the top one).
+
+- If you happen to have modern Powershell (that's anything with the Microsoft branding/black logo/version 7+), you can run:
+
+  ```powershell
+  > [Environment]::SetEnvironmentVariable("VAR_NAME", "value", "User")
+  ```
+
+  to add one, and:
+
+  ```powershell
+  > [Environment]::SetEnvironmentVariable("VAR_NAME", "", "User")
+  ```
+
+  to remove it (by setting it to an empty string).
+
+</details>
 
 # Configuration (kink)