diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2c56bc4..4dbdc3b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -16,17 +16,14 @@ jobs:
           libx11-dev xorg-dev libxtst-dev
           xsel xclip
           # libpng++-dev
-          # xcb libxcb-xkb-dev x11-xkb-utils libx11-xcb-dev libxkbcommon-x11-dev
-          # libxkbcommon-dev
+          # xcb libxcb-xkb-dev x11-xkb-utils libx11-xcb-dev libxkbcommon-x11-dev libxkbcommon-dev
       - run: apt -y install xvfb
       #
       #  override:
-      # './...' is a relative pattern which means all subdirectories
       # - run: go get -u github.com/go-vgo/robotgo
-      # - run: go get -u golang.org/x/sys/unix
-      # - run: go get -u github.com/shirou/gopsutil
       - run: go get -v -t -d ./...
       - run: xvfb-run go test -v ./...
+      #
       # codecov.io
       # - run: xvfb-run go test -v -covermode=count -coverprofile=coverage.out
       # - run: bash <(curl -s https://codecov.io/bash)
diff --git a/.circleci/images/primary/Dockerfile b/.circleci/images/primary/Dockerfile
index d9909c2..5b20e3d 100644
--- a/.circleci/images/primary/Dockerfile
+++ b/.circleci/images/primary/Dockerfile
@@ -5,18 +5,15 @@ FROM golang:1.17.5-stretch AS build
 RUN apt update && apt install -y --no-install-recommends \
     # customize dependencies
     libx11-dev xorg-dev \
-    # libgtkglextmm-x11-dev
-    # libghc6-x11-dev
-    # libgl1-mesa-swx11-dev
-    # xorg-dev
-    libxtst-dev libpng++-dev \
+    libxtst-dev \
+    # Bitmap
+    libpng++-dev \
     # Event:
     xcb libxcb-xkb-dev \
     x11-xkb-utils libx11-xcb-dev \
     libxkbcommon-x11-dev libxkbcommon-dev \
     # Clipboard:
     xsel xclip && \
-    # RUN apt install -y xclip
     #
     apt remove --purge --auto-remove && \
     apt clean               && \