Update to working snapcraft.yaml

snapcraft.yaml

@@ -1,29 +1,53 @@
 name: picocrypt
 summary: A very small, very simple, yet very secure cryptography utility.
-description: A very small, very simple, yet very secure cryptography utility.
+description: Picocrypt is a very small (hence "Pico"), very simple, yet very secure cryptography utility that you can use to encrypt files, generate checksums, shred files, and much more. It's designed to be the go-to tool for encryption, with a focus on security, simplicity, and reliability. Picocrypt uses the secure XChaCha20 cipher and the Poly1305 message authentication code to provide a high level of security, even from three-letter agencies like the NSA. It's designed for maximal security, making absolutely no compromises security-wise, and is built with an audited cryptography library. Your privacy and security are under attack. Take it back with confidence by protecting your files with Picocrypt.
 version: '1.13'
 confinement: strict
-base: core20
+base: core18
+grade: stable
+compression: xz
 
 apps:
   picocrypt:
-    command: picocrypt
+    command: bin/Picocrypt
+    extensions: [gnome-3-28]
+    plugs:
+      - opengl
 
 parts:
   picocrypt:
     plugin: go
+    go-importpath: .
     source: .
-    go-importpath: picocrypt
     build-packages:
       - gcc
       - make
+      - libx11-dev
+      - libxcursor-dev
+      - libxrandr-dev
+      - libxinerama-dev
+      - libxi-dev
+      - libgl1-mesa-dev
+      - libxxf86vm-dev
+      - libgtk-3-dev
     stage-packages:
       - xclip
+      - xdg-utils
+      - libglu1-mesa
+      - language-pack-en-base
+    after:
+      - desktop-glib-only
+  desktop-glib-only:
+    source: https://github.com/ubuntu/snapcraft-desktop-helpers.git
+    source-subdir: glib-only
+    plugin: make
+    build-packages:
+      - libglib2.0-dev
+    stage-packages:
+      - libglib2.0-bin
 
 plugs:
   picocrypt-home:
     interface: home
   picocrypt-network:
     interface: network
-  picocrypt-system-files:
-    interface: system-files