Changes to dockerfile + more intricate .emacs file

emacs-init

@@ -1,8 +1,48 @@
-;; Require Emacs' package functionality
+;; Package management
 (require 'package)
-
-;; Add the Melpa repository to the list of package sources
-(add-to-list 'package-archives '("melpa" . "http://melpa.org/packages/") t)
-
-;; Initialise the package system.
+(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
 (package-initialize)
+
+;; Install use-package if missing
+(unless (package-installed-p 'use-package)
+  (package-refresh-contents)
+  (package-install 'use-package))
+
+;; Core setup
+(setq inhibit-startup-screen t)
+(electric-pair-mode 1)
+(show-paren-mode 1)
+
+;; Packages
+(use-package eglot
+  :ensure t
+  :hook ((c-mode c++-mode) . eglot-ensure))
+
+(use-package company
+  :ensure t
+  :config
+  (global-company-mode)
+  (setq company-idle-delay 0.1))
+
+(use-package flycheck
+  :ensure t
+  :init (global-flycheck-mode))
+
+(use-package clang-format
+  :ensure t
+  :bind ("C-c f" . clang-format-buffer))
+
+(use-package projectile
+  :ensure t
+  :init (projectile-mode))
+
+(use-package which-key
+  :ensure t
+  :init (which-key-mode))
+
+;; C-specific settings
+(add-hook 'c-mode-hook
+          (lambda ()
+            (setq c-basic-offset 4)
+            (setq tab-width 4)
+            (setq indent-tabs-mode nil)))