diff --git a/ipd/0024/Hacking-notes.md b/ipd/0024/Hacking-notes.md
new file mode 100644
index 0000000..9788322
--- /dev/null
+++ b/ipd/0024/Hacking-notes.md
@@ -0,0 +1,4 @@
+# Sources and guides
+- [Astr0Baby Guides](https://astr0baby.online/Solaris/illumos-aarch64/)
+- [inetboot aarch64](https://github.com/n-hys/illumos-gate/tree/osport/v2021.07/usr/src/psm/stand/boot)
+- [cross-compiler docker container source](https://github.com/n-hys/illumos-build)
\ No newline at end of file
diff --git a/ipd/0024/README.md b/ipd/0024/README.md
index 228f30b..a28a337 100644
--- a/ipd/0024/README.md
+++ b/ipd/0024/README.md
@@ -53,3 +53,7 @@ platform.
 * [Multiboot2 Specification](https://www.gnu.org/software/grub/manual/multiboot2/multiboot.html)
 * [IPD 34 Rationalize Kernel Architecture Module Paths](../0034/README.md)
 * [IPD 36 Rationalize $(MACH64) Command Paths](../0036/README.md)
+* [FreeBSD RPi 4 UEFI code](https://github.com/pftf/RPi4)
+* [XNU Boot m1n1](https://github.com/AsahiLinux/m1n1)
+* [m1n1 Guide](https://github.com/AsahiLinux/docs/wiki/m1n1%3AUser-Guide)
+* [Hacking notes](Hacking-notes.md)