refactor: Use haumea for filesystem-based module system for flake outputs

refactor: Use hyphen(`-`) for variable names & folder names(except Python), replace all unserscore(`_`) with hyphen(`-`).

hosts/12kingdoms-shoukei/README.md

@@ -0,0 +1,19 @@
+# Host - Shoukei
+
+This is NixOS's configuration for my Macbook Pro 2022 Intel i5, 13.3-inch, 16G RAM + 512G SSD.
+
+Related:
+
+- [/nixos-installer/README.shoukei.md](/nixos-installer/README.shoukei.md)
+- <https://github.com/NixOS/nixos-hardware/tree/master/apple/t2>
+- <https://wiki.t2linux.org/distributions/nixos/installation/>
+
+
+TODOs:
+
+- [ ] Resume from suspend(close the lid) doesn't work
+- [ ] Show battery percentage in i3blocks/waybar
+- [ ] Touchbar unusable some times
+    - It works on boot, but after a while it stops working
+
+