docs: added section on how to build bleeding-edge cli

docs/next/en-US/reference/pitfalls-and-bugs.md

@@ -43,3 +43,9 @@ That will archive the `git/` and `registry/` folders in `~/.cargo/`, which shoul
 ## I want to disable a Perseus default feature, but it's not doing anything
 
 If you add `default-features = false` to your `Cargo.toml` and expect Perseus to adapt accordingly, you're in for a bit of a shock unfortunately! The reason for this is that the Perseus CLI isn't (yet) smart enough to know you've done this, so it will completely ignore you and press on with default features in the engine, and those settings will override your own. To disable default features, you'll need to also make these changes in `.perseus/Cargo.toml`, `.perseus/builder/Cargo.toml`, and `.perseus/server/Cargo.toml` (and you'll need to [eject](:reference/ejecting) to save your changes). In future versions, the CLI will be able to detect your preferences for this and update accordingly.
+
+## How do I get the bleeding-edge version of the CLI?
+
+If you've tried to download the bleeding-edge version of the CLI with `cargo install`, using a Git dependency on the `perseus-cli` package, you've probably been hit with a whole host of errors that don't make a whole lot of sense! The reason for this is that the Perseus CLI depends on including a folder that's not checked into Git (the engine, `.perseus/`, but transformed in various ways). That means that, to build the CLI, you need to have that folder available, which `cargo install` isn't smart enough to do yet from a Git dependency.
+
+The way you get around this is unfortunately inconvenient, you'll have to manually clone the whole Perseus repository and then build the CLI yourself. You can do that by running `bonnie setup` in the root of the Perseus repo (after you've cloned it), and then you can build the binary in `packages/perseus-cli/` -- that will give you a copy of the CLI in `target/`! Be warned though that ussing the bleeding-edge CLI is generally not recommended, as the interdependencies in the engine can be quite fragile, and even the smallest changes that aren't breaking usually can be breaking when you're using the bleeding-edge version of the CLI with a released version of Perseus.