Update README.md

README.md

@@ -1,15 +1,33 @@
 # Hasktorch Skeleton
 
-Similar to the [Cardano Skeleton](https://github.com/input-output-hk/cardano-skeleton),
-this repository serves as an example of how a downstream user of both Nix and Hasktorch
-can set up a development environment.
+Similar to the [Cardano Skeleton](https://github.com/input-output-hk/cardano-skeleton), this repository serves as an example of how a downstream user of both Nix and Hasktorch can set up a development environment.
 
-The Nix shell installs ghc with hasktorch. When there is a hasktorch cache in nixpkgs, building hasktorch will be skipped.
+The Nix shell installs GHC with Hasktorch. When there is a Hasktorch cache in nixpkgs, building Hasktorch will be skipped. Additionally, you can speed up builds by using Cachix.
 
-# 3 Steps to happy Hasktorch coding
+## Steps to Happy Hasktorch Coding
 
 1. Fork this repo and clone it locally.
-2. Launch a Nix shell with (optionally) CUDA, `hls`, and VS Code, `nix develop"`
-3. Install the [Haskell Language Server plugin](https://marketplace.visualstudio.com/items?itemName=alanz.vscode-hie-server) and set the `HIE Variant` to `ghcide`.
+2. Enable the Hasktorch binary cache using Cachix:
+   ```sh
+   cachix use hasktorch
+   ```
+   This works on both Linux and macOS, reducing build times significantly.
+3. Launch a Nix shell, which includes GHC with Hasktorch and Haskell Language Server (hls):
+   ```sh
+   nix develop
+   ```
+4. Install the [Haskell Language Server plugin](https://marketplace.visualstudio.com/items?itemName=alanz.vscode-hie-server) and [direnv](https://github.com/direnv/direnv-vscode).
+
+## Using IHaskell Notebook
+
+To use `ihaskell-notebook`, uncomment `ihaskell` in the `flake.nix and restart the development shell:
+```sh
+nix develop
+```
+Then, launch Jupyter Notebook:
+```sh
+ihaskell-notebook
+```
+This allows you to use Haskell interactively in a Jupyter environment.
 
 Happy Hasktorch hacking!