diff --git a/README.md b/README.md
index 34f6c88..58c6084 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
 Dotfiles
 ========
 
-This is my collection of dotfiles, preserved here for all to see and enjoy.
-Feel free to copy anything you see here. It would be nice if you added a
-comment mentioning where you got it.
+This is my collection of dotfiles, preserved here for all to see and enjoy. Feel
+free to copy anything you see here. It would be nice if you added a comment
+mentioning where you got it.
 
 My environment relies on `zsh`, `vim`, and `git`.
 
@@ -12,42 +12,33 @@ My environment relies on `zsh`, `vim`, and `git`.
 Clone the repository to a directory on your machine. I like to use
 `~/.dotfiles`.
 
-    git clone https://github.com/erynofwales/dotfiles.git ~/.dotfiles
+```sh
+git clone https://github.com/erynofwales/dotfiles.git ~/.dotfiles
+```
 
 Run the setup script.
 
-    cd ~/.dotfiles
-    ./setup.sh
+```sh
+cd ~/.dotfiles
+./setup.sh
+```
 
 This script will symlink all the config files in the directory to your home
 directory, clone a bunch of git repos, and do some other miscellaneous setup.
 
 Enjoy.
 
-## Shell Environment
+## Profiling
 
-As much as possible, I tried to keep these files as system agnostic as
-possible. I work on lots of different systems so having the ability to bring
-down my core environment and customize it is very useful. Most of the
-environment files have three levels:
+ZSH has a built in profiler. If you're concerned about init times, place the
+following at the top of `.zshenv`.
 
-1. The main file (e.g. `.zshrc`).
-2. A system specific file whose name is generated by the `uname -s` command.
-   So, these files have names like `.zshrc.darwin` and `.env.linux`. The system
-   name is exported as `$SYS` in the `.env` script.
-3. A machine specific file whose name is derived by appending `.local` to the
-   main file's name (e.g. `.zshrc.local`).
+```zsh
+zmodload zsh/zprof
+```
 
-Files 2 and 3 are sourced at the end of the main file, so any settings you add
-there will override those set in the main file.
-
-## Loud Noises!
-
-In a recent change I added some extra functions to print out status
-messages as ZSH starts up. These are all defined in `shell-functions`
-(symlinked to `~/.shell-functions` by the setup script). At any point in the
-setup process, you can set the variable `$NOISY` to a number greater than 0 to
-see extra status messages.
+Then, at the end of either `.zshrc` or `.zprofile`, call `zprof` to get the
+results of the profiling session.
 
 ## License