Add Kirkstone and Mickledore specific notes

README.md

@@ -40,4 +40,29 @@ backend, set them like this:
 ```
 PACKAGECONFIG:append:pn-slint-cpp = " backend-linuxkms renderer-femtovg "
 PACKAGECONFIG:remove:pn-slint-cpp = " renderer-skia "
-```
+```
+
+## Yocto Release Specific Notes
+
+### Kirkstone
+
+For compiling against Kirkstone, you need to upgrade Rust to match the minimum
+required Rust version required by the Slint release you're compiling.
+
+This means that you may have to either backport the rust recipes or add [meta-rust](https://github.com/meta-rust/meta-rust)
+to your project.
+
+### Mickledore
+
+For compiling against Kirkstone, you need to upgrade Rust to match the minimum
+required Rust version required by the Slint release you're compiling.
+
+Unfortunately [meta-rust](https://github.com/meta-rust/meta-rust) does not work with
+Mickledore at the moment because bitbake's `classes` directory was split up into
+`classes-global`, `classes-recipe`, and `classes`. The rust recipes in openembedded-core
+are in `classes-recipe` and are thus always found before the rust recipes in `meta-rust`
+that are supposed to override them, as they are there located in `classes`.
+
+A workaround is to cherry-pick commits [39e05f9b0fdc3f76f8b80a12989f78614bc9ea5c](https://github.com/openembedded/openembedded-core/commit/39e05f9b0fdc3f76f8b80a12989f78614bc9ea5c)
+and [d1af583c290eb0cff5e36363f7531832a863a1a8](https://github.com/openembedded/openembedded-core/commit/d1af583c290eb0cff5e36363f7531832a863a1a8)
+into your local openembedded-core layer.