diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d99ae62..dd2293f3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,13 +24,24 @@ jobs:
           - 27.2
           - snapshot
     steps:
+    - uses: actions/checkout@v2
+
     - uses: purcell/setup-emacs@master
       with:
         version: ${{ matrix.emacs-version }}
 
-    - uses: actions/checkout@v2
-    - name: Test package
-      run: sh ./scripts/test-pkg.sh
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.6"
+        architecture: "x64"
+
+    - uses: conao3/setup-cask@master
+      with:
+        version: 0.8.4
+
+    - name: Run tests
+      run:
+        make compile
 
   test-windows:
     runs-on: ${{ matrix.os }}
@@ -45,10 +56,21 @@ jobs:
           - 27.2
           - snapshot
     steps:
+    - uses: actions/checkout@v2
+
     - uses: jcs090218/setup-emacs-windows@master
       with:
         version: ${{ matrix.emacs-version }}
 
-    - uses: actions/checkout@v2
-    - name: Test package
-      run: ./scripts/test-pkg.bat
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.6"
+        architecture: "x64"
+
+    - uses: conao3/setup-cask@master
+      with:
+        version: 0.8.4
+
+    - name: Run tests
+      run:
+        make compile
diff --git a/Cask b/Cask
index 0f45d508..b87c8a9a 100644
--- a/Cask
+++ b/Cask
@@ -5,4 +5,5 @@
 (files "*.el" "*.org" "banners")
 
 (development
+ (depends-on "elisp-lint")
  (depends-on "page-break-lines"))
diff --git a/Makefile b/Makefile
index 1017f38f..39edb376 100644
--- a/Makefile
+++ b/Makefile
@@ -1,25 +1,24 @@
-export EMACS ?= emacs
 export BATCH = --batch -q -l .emacs/init.el
 
+EMACS ?= emacs
+CASK ?= cask
+
 ELLP := $(shell find . -regex '.*elisp-lint-[0-9]+\.[0-9]+')
 ELS = $(filter-out emacs-dashboard-autoloads.el,$(wildcard *.el))
 OBJECTS = $(ELS:.el=.elc)
 BACKUPS = $(ELS:.el=.el~)
 
-.PHONY: version lint clean cleanelpa
-
-.elpa:
-	$(EMACS) $(BATCH)
-	touch .elpa
-
-version: .elpa
-	$(EMACS) $(BATCH) --version
+.PHONY: lint clean compile
 
-lint: .elpa
+lint:
 	$(EMACS) $(BATCH) -l $(ELLP)/elisp-lint.el -f elisp-lint-files-batch --no-package-lint $(ELS)
 
 clean:
-	rm -f $(OBJECTS) $(BACKUPS) emacs-dashboard-autoloads.el*
+	rm -rf .cask *.elc
 
-cleanelpa: clean
-	rm -rf .emacs/elpa .emacs/quelpa .emacs/.emacs-custom.el* .elpa
+compile:
+	@echo "Compiling..."
+	@$(CASK) $(EMACS) -Q --batch \
+		-L . \
+		--eval '(setq byte-compile-error-on-warn t)' \
+		-f batch-byte-compile $(ELS)
diff --git a/dashboard-widgets.el b/dashboard-widgets.el
index 30fe1d44..fbaf7aab 100644
--- a/dashboard-widgets.el
+++ b/dashboard-widgets.el
@@ -55,6 +55,7 @@
 (declare-function org-get-todo-state "ext:org.el")
 (declare-function org-entry-is-todo-p "ext:org.el")
 (declare-function org-release-buffers "ext:org.el")
+(declare-function recentf-cleanup "ext:recentf.el")
 (defalias 'org-time-less-p 'time-less-p)
 (defvar org-level-faces)
 (defvar org-agenda-new-buffers)
diff --git a/dashboard.el b/dashboard.el
index af5137d3..67b1f77f 100644
--- a/dashboard.el
+++ b/dashboard.el
@@ -26,6 +26,12 @@
 (require 'recentf)
 (require 'dashboard-widgets)
 
+(declare-function page-break-lines-mode "ext:page-break-lines.el")
+
+(defgroup dashboard nil
+  "Extensible startup screen."
+  :group 'applications)
+
 ;; Custom splash screen
 (defvar dashboard-mode-map
   (let ((map (make-sparse-keymap)))
@@ -67,10 +73,6 @@
         buffer-read-only t
         truncate-lines t))
 
-(defgroup dashboard nil
-  "Extensible startup screen."
-  :group 'applications)
-
 (defcustom dashboard-center-content nil
   "Whether to center content within the window."
   :type 'boolean
diff --git a/scripts/pkg-prepare.el b/scripts/pkg-prepare.el
deleted file mode 100644
index 8781b54a..00000000
--- a/scripts/pkg-prepare.el
+++ /dev/null
@@ -1,37 +0,0 @@
-;;; pkg-prepare.el --- Prepare for package initialization  -*- lexical-binding: t -*-
-;;; Commentary:
-;;; Code:
-
-(require 'package)
-
-(add-to-list 'package-archives '("melpa" . "http://melpa.org/packages/"))
-(setq package-enable-at-startup nil
-      package-check-signature nil)
-
-(setq network-security-level 'low)
-
-(package-initialize)
-
-(defun jcs-package-install (pkg)
-  "Install PKG package."
-  (unless (get 'jcs-package-install 'state)
-    (put 'jcs-package-install 'state t))
-  ;; Don't run `package-refresh-contents' if you don't need to install
-  ;; packages on startup.
-  (package-refresh-contents)
-  ;; Else we just install the package regularly.
-  (package-install pkg))
-
-(defun jcs-ensure-package-installed (packages &optional without-asking)
-  "Assure every PACKAGES is installed, ask WITHOUT-ASKING."
-  (dolist (package packages)
-    (unless (package-installed-p package)
-      (if (or without-asking
-              (y-or-n-p (format "[ELPA] Package %s is missing. Install it? " package)))
-          (jcs-package-install package)
-        package)))
-  ;; STUDY: Not sure if you need this?
-  (when (get 'jcs-package-install 'state)
-    (package-initialize)))
-
-;;; pkg-prepare.el ends here
diff --git a/scripts/test-pkg.bat b/scripts/test-pkg.bat
deleted file mode 100644
index 7e76c385..00000000
--- a/scripts/test-pkg.bat
+++ /dev/null
@@ -1,9 +0,0 @@
-@echo off
-
-echo "Executing package..."
-
-emacs -nw --batch --load "./scripts/test-pkg.el"
-
-git clone "https://github.com/gonewest818/elisp-lint"
-
-emacs --batch -q -l "./scripts/pkg-prepare.el" -l "./elisp-lint/elisp-lint.el" -f elisp-lint-files-batch --no-package-lint dashboard-widgets.el dashboard.el
diff --git a/scripts/test-pkg.el b/scripts/test-pkg.el
deleted file mode 100644
index d1847e17..00000000
--- a/scripts/test-pkg.el
+++ /dev/null
@@ -1,19 +0,0 @@
-;;
-;; (@* "Prepare" )
-;;
-
-(add-to-list 'load-path "./")
-(load-file (expand-file-name "./scripts/pkg-prepare.el"))
-
-(jcs-ensure-package-installed
- (append
-  '(page-break-lines org all-the-icons)
-  '(elisp-lint package-lint dash))
- t)
-
-;;
-;; (@* "Test" )
-;;
-
-(require 'dashboard)
-(dashboard-insert-startupify-lists)
diff --git a/scripts/test-pkg.sh b/scripts/test-pkg.sh
deleted file mode 100644
index 7793f679..00000000
--- a/scripts/test-pkg.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-echo "Executing package..."
-
-${EMACS:=emacs} -nw --batch --load "./scripts/test-pkg.el"
-
-git clone "https://github.com/gonewest818/elisp-lint"
-
-emacs --batch -q -l "./scripts/pkg-prepare.el" -l "./elisp-lint/elisp-lint.el" -f elisp-lint-files-batch --no-package-lint dashboard-widgets.el dashboard.el