diff --git a/flake.lock b/flake.lock
index 08ee5d1..21bd9c4 100644
--- a/flake.lock
+++ b/flake.lock
@@ -7,11 +7,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1707469552,
-        "narHash": "sha256-CPHB05n2FKAcPtjLows1+cEOA3ivDeFHs5bkvTGSgR4=",
+        "lastModified": 1709862236,
+        "narHash": "sha256-i/0IUNU2q11tTTYK6HCdJn+YV2vly08PMCRiN2Ksjr4=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "eda89e24ee4ceb6e4bfcd00dabb894d6301c36db",
+        "rev": "6cd7ddb6c8a8ac4b2bfb35ca3261d3e689740c8e",
         "type": "github"
       },
       "original": {
@@ -55,11 +55,11 @@
     "extra-package-combobulate": {
       "flake": false,
       "locked": {
-        "lastModified": 1695673560,
-        "narHash": "sha256-oLxJfHN50GWlXZYmZP7ZGqyvwEG3h0HreLAfBqoWfBg=",
+        "lastModified": 1709362419,
+        "narHash": "sha256-LDjwiDlEIpWVxLFi8Cay1P3LNh1pl4GC17lNKK7QTyo=",
         "owner": "mickeynp",
         "repo": "combobulate",
-        "rev": "c7e4670a3047c0b58dff3746577a5c8e5832cfba",
+        "rev": "abc2be2a47edd2d108ce0dbe1d11e0cd2fe6796d",
         "type": "github"
       },
       "original": {
@@ -71,11 +71,11 @@
     "extra-package-copilot": {
       "flake": false,
       "locked": {
-        "lastModified": 1708330768,
-        "narHash": "sha256-2hLO2JLZZMgXcPEb7pVRUpVrUJsUMUdJcPoE4TC7edk=",
+        "lastModified": 1708637353,
+        "narHash": "sha256-BT2II+3AYdagq1zQG82dGf7K2nIyTG0cFKbqdIixkbg=",
         "owner": "zerolfx",
         "repo": "copilot.el",
-        "rev": "0e24423cfef2993b3a9633c8cbb654079f2652a9",
+        "rev": "fd4d7e8c1e95aa9d3967b19905c9b8c3e03f6a5c",
         "type": "github"
       },
       "original": {
@@ -87,11 +87,11 @@
     "extra-package-indent-bars": {
       "flake": false,
       "locked": {
-        "lastModified": 1706410940,
-        "narHash": "sha256-8qi7RVjQvOJnt1ziBVPK7vQhlx93nRkomu8rEcW3Pp0=",
+        "lastModified": 1709221609,
+        "narHash": "sha256-tkjy7uNYpnI9IZwizqbJDIS3Yf6U7KhWfoyXbBoCfnk=",
         "owner": "jdtsmith",
         "repo": "indent-bars",
-        "rev": "269774df6d5030832d04c5cf067d7a3a2568a46f",
+        "rev": "fb1a0d6d1ae0131898dde9722ad44da2bbebc66f",
         "type": "github"
       },
       "original": {
@@ -138,11 +138,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1706830856,
-        "narHash": "sha256-a0NYyp+h9hlb7ddVz4LUn1vT/PLwqfrWYcHMvFB1xYg=",
+        "lastModified": 1709336216,
+        "narHash": "sha256-Dt/wOWeW6Sqm11Yh+2+t0dfEWxoMxGBvv3JpIocFl9E=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "b253292d9c0a5ead9bc98c4e9a26c6312e27d69f",
+        "rev": "f7b3c975cf067e56e7cda6cb098ebe3fb4d74ca2",
         "type": "github"
       },
       "original": {
@@ -176,11 +176,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1705309234,
-        "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
+        "lastModified": 1709126324,
+        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
+        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
         "type": "github"
       },
       "original": {
@@ -195,11 +195,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1704029560,
-        "narHash": "sha256-a4Iu7x1OP+uSYpqadOu8VCPY+MPF3+f6KIi+MAxlgyw=",
+        "lastModified": 1708547820,
+        "narHash": "sha256-xU/KC1PWqq5zL9dQ9wYhcdgxAwdeF/dJCLPH3PNZEBg=",
         "owner": "hercules-ci",
         "repo": "hercules-ci-effects",
-        "rev": "d5cbf433a6ae9cae05400189a8dbc6412a03ba16",
+        "rev": "0ca27bd58e4d5be3135a4bef66b582e57abe8f4a",
         "type": "github"
       },
       "original": {
@@ -210,11 +210,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1707268954,
-        "narHash": "sha256-2en1kvde3cJVc3ZnTy8QeD2oKcseLFjYPLKhIGDanQ0=",
+        "lastModified": 1709703039,
+        "narHash": "sha256-6hqgQ8OK6gsMu1VtcGKBxKQInRLHtzulDo9Z5jxHEFY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f8e2ebd66d097614d51a56a755450d4ae1632df1",
+        "rev": "9df3e30ce24fd28c7b3e2de0d986769db5d6225d",
         "type": "github"
       },
       "original": {
@@ -227,11 +227,11 @@
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1706550542,
-        "narHash": "sha256-UcsnCG6wx++23yeER4Hg18CXWbgNpqNXcHIo5/1Y+hc=",
+        "lastModified": 1709237383,
+        "narHash": "sha256-cy6ArO4k5qTx+l5o+0mL9f5fa86tYUX3ozE1S+Txlds=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "97b17f32362e475016f942bbdfda4a4a72a8a652",
+        "rev": "1536926ef5621b09bba54035ae2bb6d806d72ac8",
         "type": "github"
       },
       "original": {
@@ -244,11 +244,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1707347730,
-        "narHash": "sha256-0etC/exQIaqC9vliKhc3eZE2Mm2wgLa0tj93ZF/egvM=",
+        "lastModified": 1709677081,
+        "narHash": "sha256-tix36Y7u0rkn6mTm0lA45b45oab2cFLqAzDbJxeXS+c=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6832d0d99649db3d65a0e15fa51471537b2c56a6",
+        "rev": "880992dcc006a5e00dd0591446fdf723e6a51a64",
         "type": "github"
       },
       "original": {
@@ -274,22 +274,6 @@
         "type": "github"
       }
     },
-    "nixpkgs_3": {
-      "locked": {
-        "lastModified": 1707268954,
-        "narHash": "sha256-2en1kvde3cJVc3ZnTy8QeD2oKcseLFjYPLKhIGDanQ0=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "f8e2ebd66d097614d51a56a755450d4ae1632df1",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "emacs-overlay": "emacs-overlay",
@@ -302,7 +286,10 @@
         "extra-package-notmuch-notify": "extra-package-notmuch-notify",
         "flake-parts": "flake-parts",
         "hercules-ci-effects": "hercules-ci-effects",
-        "nixpkgs": "nixpkgs_3"
+        "nixpkgs": [
+          "emacs-overlay",
+          "nixpkgs"
+        ]
       }
     },
     "systems": {
diff --git a/flake.nix b/flake.nix
index 3e63ada..a6da048 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,8 +3,8 @@
 
   inputs = {
     flake-parts.url = "github:hercules-ci/flake-parts";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     emacs-overlay.url = "github:nix-community/emacs-overlay";
+    nixpkgs.follows = "emacs-overlay/nixpkgs";
     hercules-ci-effects.url = "github:hercules-ci/hercules-ci-effects";
     extra-package-indent-bars = {
       url = "github:jdtsmith/indent-bars";
diff --git a/init.el b/init.el
index e6f3758..a1fcd0f 100644
--- a/init.el
+++ b/init.el
@@ -67,6 +67,7 @@
   (defun ccr/reload-emacs ()
     (interactive)
     (load-file "~/.config/emacs/init.el"))
+  (load-theme 'modus-operandi 't)
   (defun ccr/nixos-rebuild ()
     (interactive)
     (let* ((operation (completing-read "nixos-rebuild " '("switch" "boot" "test" "dry-activate")))
@@ -85,12 +86,12 @@
   (tramp-use-ssh-controlmaster-options nil) ;; makes tramp use ~/.ssh/config
   )
 
-(use-package dracula-theme
-  :config
-  (add-hook 'after-make-frame-functions (defun ccr/theme-init (_)
-					  (load-theme 'dracula 't)
-					  (meow--prepare-face)
-					  (remove-hook 'after-make-frame-functions 'ccr/theme-init))))
+;; (use-package dracula-theme
+;;   :config
+;;   (add-hook 'after-make-frame-functions (defun ccr/theme-init (_)
+;; 					  (load-theme 'dracula 't)
+;; 					  (meow--prepare-face)
+;; 					  (remove-hook 'after-make-frame-functions 'ccr/theme-init))))
 
 (use-package ligature
   :config
@@ -149,7 +150,20 @@
   (indent-bars-no-stipple-char (string-to-char "┋"))
   (indent-bars-prefer-character 't) ;; so it works also in terminal
   :config
-  (advice-add 'consult-theme :after #'(lambda (&rest r) (with-eval-after-load 'indent-bars (indent-bars-reset)))))
+  ;; We need an hook to re-compute indent-bars colors when the theme changes
+  ;; https://github.com/jdtsmith/indent-bars/issues/31
+  
+  (defvar after-enable-theme-hook nil
+    "Normal hook run after enabling a theme.")
+
+  (defun run-after-enable-theme-hook (&rest _args)
+    "Run `after-enable-theme-hook'."
+    (run-hooks 'after-enable-theme-hook))
+
+  (advice-add 'enable-theme :after #'run-after-enable-theme-hook)
+  
+  (add-hook 'after-enable-theme-hook #'indent-bars-reset)
+)
 
 (use-package diredfl
   :config (diredfl-global-mode))
@@ -725,19 +739,16 @@ This is meant to be an helper to be called from the window manager."
     (delete-other-windows))
   ;; FIXME the following doesn't work when using the daemon, it should be executed only
   ;; one time after the first frame is created 
-  (set-face-font 'variable-pitch "Dejavu Serif 14")
-  (set-face-font 'fixed-pitch "Iosevka 14")
-
-  (set-face-attribute 'org-block nil :inherit 'fixed-pitch)
-  (set-face-attribute 'org-code nil :inherit 'fixed-pitch)
-  (set-face-attribute 'org-document-info-keyword nil :inherit 'fixed-pitch)
-  (set-face-attribute 'org-meta-line nil :inherit 'fixed-pitch)
-  (set-face-attribute 'org-property-value nil :inherit 'fixed-pitch)
-  (set-face-attribute 'org-special-keyword nil :inherit 'fixed-pitch)
-  (set-face-attribute 'org-table nil :inherit 'fixed-pitch)
-  (set-face-attribute 'org-tag nil :inherit 'fixed-pitch :weight 'bold :height 0.8)
-  (set-face-attribute 'org-verbatim nil :inherit 'fixed-pitch)
+  (set-face-font 'variable-pitch "Dejavu Serif-14")
+  (set-face-font 'fixed-pitch "Iosevka Comfy-14")
 
+  (dolist (face '(org-block-begin-line 
+                org-block-end-line 
+                org-verbatim
+		org-code
+                ))
+  (set-face-attribute face nil :inherit 'fixed-pitch))
+  
   (org-babel-do-load-languages
    'org-babel-load-languages '((haskell . t))))
 
@@ -821,6 +832,18 @@ This is meant to be an helper to be called from the window manager."
   (gts-buffer-follow-p 't)
   :bind (("C-c T t" . gts-do-translate)))
 
+(use-package message
+  :custom
+  (message-send-mail-function 'smtpmail-send-it)
+  (send-mail-function 'smtpmail-send-it)
+  (user-mail-address "andrea.ciceri@autistici.org")
+  (smtpmail-smtp-server "mail.autistici.org")
+  (smtpmail-stream-type 'starttls)
+  (smtpmail-smtp-service 587)
+  ;; also the following line is needeed in ~/.authinfo.gpg
+  ;; machine mail.autistici.org login andrea.ciceri@autistici.org password <password>
+  )
+
 (use-package notmuch
   :custom
   (notmuch-show-logo nil)
@@ -828,7 +851,7 @@ This is meant to be an helper to be called from the window manager."
 
 (use-package notmuch-notify
   :hook (notmuch-hello-refresh . notmuch-notify-hello-refresh-status-message)
-  :custom
+  :custo
   (alert-default-style 'notifications)
   :config
   (notmuch-notify-set-refresh-timer))
@@ -840,6 +863,12 @@ This is meant to be an helper to be called from the window manager."
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
+ '(custom-safe-themes
+   '("5bafdfa3e21f921abf9b9fd77e1e0ce032e62e3a6f8f13ec8ce7945727c654e9"
+     "5f92b9fc442528b6f106eaefa18bb5e7bfa0d737164e18f1214410fef2a6678d"
+     "b7f70bd00f79099f11d67a25c592d70593377488a263bb3dd73dee99b0549dba"
+     "7d10494665024176a90895ff7836a8e810d9549a9872c17db8871900add93d5c"
+     "b5c3c59e2fff6877030996eadaa085a5645cc7597f8876e982eadc923f597aca" default))
  '(magit-todos-insert-after '(bottom) nil nil "Changed by setter of obsolete option `magit-todos-insert-at'")
  '(org-fold-catch-invisible-edits 'show-and-error nil nil "Customized with use-package org")
  '(safe-local-variable-values '((copilot-mode 0) (copilot-mode -1))))