Disable some stuff that doesn't work well on Windows

config/ublt-dvorak.el

@@ -402,7 +402,7 @@
 
 ;;; TODO: Put this in `ublt-appearance'.
 (use-package hydra
-  :custom (hydra-hint-display-type (if window-system 'posframe 'lv))
+  :custom (hydra-hint-display-type (if (memq window-system '(mac ns)) 'posframe 'lv))
   :config
   (setq-default hydra-posframe-show-params
                 (list :internal-border-width 1

config/ublt-helm.el

@@ -183,7 +183,7 @@ all of the sources."
     (with-helm-buffer
       (setq-local helm-echo-input-in-header-line t)))
 
-  (when window-system
+  (when (memq window-system '(mac ns))
     (setq helm-display-function #'helm-display-buffer-in-own-frame)
 
     (add-to-list 'helm-commands-using-frame #'helm-swoop)

config/ublt-rust.el

@@ -1,6 +1,7 @@
 (require 'ublt-util)
 
 (use-package exec-path-from-shell
+  :when (memq system-type '(darwin gnu/linux))
   :config (exec-path-from-shell-copy-envs '("RUST_SRC_PATH" "RUSTC_WRAPPER")))
 
 (use-package rust-mode

init.el

@@ -94,6 +94,7 @@
 
 ;;; Uhm, f*ck shell
 (use-package exec-path-from-shell
+  :when (member system-type '(gnu/linux darwin))
   :config (exec-path-from-shell-initialize))
 
 ;;; General usability