some updates to guix stuff

guix/pkgs/eww.scm

@@ -0,0 +1,21 @@
+(define-module (pkgs eww))
+
+(define-public eww
+  (package
+    (name "eww")
+    (version "0.0.1-alpha.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "eww" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0j583vh5kn0k1adsh0q8mdscadlsqximd9scs76sg2n7jy4x19bi"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs (("rust-egui-wgpu" ,rust-egui-wgpu-0.0.1)
+                       ("rust-egui-winit" ,rust-egui-winit-0.0.1))))
+    (home-page "https://github.com/LU15W1R7H/eww")
+    (synopsis "egui backend (winit + wgpu)")
+    (description "egui backend (winit + wgpu)")
+    (license license:asl2.0)))