Add install instructions for non-nix users

README.md

@@ -19,6 +19,32 @@ list of all tasks running on ECS.
 
 <details>
 <summary>Non-Nix users</summary>
+
+Clone the repository:
+
+```
+git clone https://github.com/sestrella/iecs.git
+```
+
+Download and [install](https://go.dev/dl/) the appropriate Go version. Check
+the version constraint on the [go.mod](go.mod) to determine which version to
+use.
+
+Compile and generate the binary:
+
+```
+go build
+```
+
+Copy the binary to a directory in the `PATH`, like `~/.local/bin`:
+
+```
+cp iecs ~/.local/bin/iecs
+```
+
+> [!NOTE]
+> Check that the path where the binary is copied exists in the `PATH`
+> environment variable.
 </details>
 
 ## References