diff --git a/content/about.md b/content/about.md
index 04e7c7e..7611d6c 100644
--- a/content/about.md
+++ b/content/about.md
@@ -2,8 +2,8 @@
 title: About me
 ---
 
-I'm a freelancing Mathematician, Full Stack Developer and DevOps.
-[NixOS](https://nixos.org) is my Operation System of choice.
+I'm a freelancing Mathematician, Full Stack Developer and DevOps Engineer.
+[NixOS](https://nixos.org) is my Operating System of choice.
 
 When I'm not doing stuff on my computer I play video games or make some photos
 on my journeys. Have a look at my [travel page](http://travel.ingolf-wagner.de).
diff --git a/content/nixos/krops.md b/content/nixos/krops.md
index 1c9757f..74ad6c2 100644
--- a/content/nixos/krops.md
+++ b/content/nixos/krops.md
@@ -9,9 +9,9 @@ tags:
 - password-store
 summary: >
   krops is an alternative to
-  NixOps trying to solve some of theses flaws,
+  NixOps trying to solve some of these flaws,
   with some very simple concepts.
-  In this article we will checkout on how to deploy a server
+  In this article we will see on how to deploy a server
   using krops and discuss all involved parameters and steps.
 
 ---
@@ -20,7 +20,7 @@ summary: >
 the official DevOps tool of
 [NixOS ](https://nixos.org) is nice, but it has some flaws.
 [krops](https://cgit.krebsco.de/krops/about/) is an alternative to
-[NixOps](https://nixos.org/nixops/) trying to solve some of theses flaws,
+[NixOps](https://nixos.org/nixops/) trying to solve some of these flaws,
 with some very simple concepts.
 
 If you're looking for a good document on how to use
@@ -101,7 +101,7 @@ have a look at
 ## krops Structure by Example
 
 krops is not an executable like NixOps,
-it is a library you use to write executables which do the actual deployment.
+it is a library to write executables which do the actual deployment.
 
 Let's say you have a very simple `configuration.nix`
 
@@ -210,15 +210,15 @@ to change the ssh port and the target folder it should be copied.
 {{% /note %}}
 
 ```nix
-  source =  lib.evalSource [
-    {
-      nixpkgs.git = {
-        ref = "nixos-18.03";
-        url = https://github.com/NixOS/nixpkgs-channels;
-      };
-      nixos-config.file = toString ./configuration.nix;
-    }
-  ];
+source =  lib.evalSource [
+  {
+    nixpkgs.git = {
+      ref = "nixos-18.03";
+      url = https://github.com/NixOS/nixpkgs-channels;
+    };
+    nixos-config.file = toString ./configuration.nix;
+  }
+];
 ```
 
 The list of folders and files are managed by the `source` parameter.
@@ -316,7 +316,6 @@ source = lib.evalSource [
     };
   }
 ];
-
 ```
 
 This copies `secrets/server01` to `/var/src/secrets` after it is decrypted.
@@ -464,19 +463,19 @@ It is very easy to install packages from different channels.
 For example add `nixpkgs-unstable` the same way you add `nixpkgs`.
 
 ```nix
-  source =  lib.evalSource [
-    {
-      nixpkgs.git = {
-        ref = "nixos-18.09";
-        url = https://github.com/NixOS/nixpkgs-channels;
-      };
-      nixpkgs-unstable.git = {
-        ref = "nixos-unstable";
-        url = https://github.com/NixOS/nixpkgs-channels;
-      };
-      nixos-config.file = toString ./configuration.nix;
-    }
-  ];
+source =  lib.evalSource [
+  {
+    nixpkgs.git = {
+      ref = "nixos-18.09";
+      url = https://github.com/NixOS/nixpkgs-channels;
+    };
+    nixpkgs-unstable.git = {
+      ref = "nixos-unstable";
+      url = https://github.com/NixOS/nixpkgs-channels;
+    };
+    nixos-config.file = toString ./configuration.nix;
+  }
+];
 ```
 
 To install a package from the `unstable` channel you just have to import the channel
diff --git a/content/nixos/language-server.md b/content/nixos/language-server.md
index 19ad832..f3603c0 100755
--- a/content/nixos/language-server.md
+++ b/content/nixos/language-server.md
@@ -36,13 +36,13 @@ but this does not play well with updates and with `customization`.
 
 Now I'm using [home-manager](https://github.com/rycee/home-manager)
 to configure files in `~/.spacemacs.d/` and `load` them in 
-the configuration functions inside `~/.spacemacs`. A simple `(load "~/.spacemacs.d/hook-user-config.el")`
+the configuration functions inside `~/.spacemacs`.
+A simple `(load "~/.spacemacs.d/hook-user-config.el")`
 inside the `dotspacemacs/user-config` function is enough, to make it work.
 
 ```nix
 { pkgs, lib, config, ... }:
 let
-
   user = "mainUser";
   userName = config.users.users."${user}".name;
   home = config.users.users."${user}".home;
@@ -52,10 +52,7 @@ let
     url = "https://github.com/NixOS/nixos-homepage/raw/master/logo/nix-wiki.png";
     sha256 = "1hrz7wr7i0b2bips60ygacbkmdzv466lsbxi22hycg42kv4m0173";
   };
-
-in
-{
-
+in {
   systemd.services =
     let
       clone =
@@ -77,65 +74,61 @@ in
 
   home-manager.users."${user}" = {
 
-      home.file.".spacemacs.d/hook-init.el".text = ''
-        ;; just add (load "~/.spacemacs.d/hook-init.el")
-        ;; at the end of dotspacemacs/init function
+    home.file.".spacemacs.d/hook-init.el".text = ''
+      ;; just add (load "~/.spacemacs.d/hook-init.el")
+      ;; at the end of dotspacemacs/init function
+      ;; overrides of dotspacemacs/init ()
+      (setq-default
+       dotspacemacs-themes '(solarized-light solarized-dark)
+       dotspacemacs-startup-banner "${startupBanner}"
+       dotspacemacs-default-font 
+       '("Terminus" :size ${toString fontSize}
+                    :weight normal
+                    :width normal
+                    :powerline-scale 1.1))
+    '';
 
-        ;; overrides of dotspacemacs/init ()
-        (setq-default
-         dotspacemacs-themes '(solarized-light solarized-dark)
-         dotspacemacs-startup-banner "${startupBanner}"
-         dotspacemacs-default-font '("Terminus"
-                                     :size ${toString fontSize}
-                                     :weight normal
-                                     :width normal
-                                     :powerline-scale 1.1))
-      '';
+    home.file.".spacemacs.d/hook-layers.el".text = ''
+      ;; just add (load "~/.spacemacs.d/hook-layers.el") 
+      ;; at the end of dotspacemacs/layers function
+      (let
+        ((user-layers dotspacemacs-configuration-layers))
+        (setq
+          dotspacemacs-configuration-layers
+            (append user-layers
+              '( spell-checking
+                 syntax-checking
+                 (haskell :variables
+                    haskell-enable-hindent t
+                    haskell-completion-backend 'lsp
+                    haskell-enable-hindent-style "gibiansky"
+                    haskell-process-type 'cabal-new-repl)
+               ))))
+      (let
+        ((user-packages dotspacemacs-additional-packages ))
+        (setq
+          dotspacemacs-additional-packages
+            (append user-packages
+              '( lsp-mode
+                 lsp-ui
+                 lsp-haskell
+                 direnv
+              ))))
+    '';
 
-      home.file.".spacemacs.d/hook-layers.el".text = ''
-        ;; just add (load "~/.spacemacs.d/hook-layers.el") 
-        ;; at the end of dotspacemacs/layers function
+    home.file.".spacemacs.d/hook-user-config.el".text = ''
+      ;; just add (load "~/.spacemacs.d/hook-user-config.el") 
+      ;; at the end of dotspacemacs/user-config function
 
-        (let
-          ((user-layers dotspacemacs-configuration-layers))
-          (setq
-            dotspacemacs-configuration-layers
-              (append user-layers
-                '( spell-checking
-                   syntax-checking
-                   (haskell :variables
-                      haskell-enable-hindent t
-                      haskell-completion-backend 'lsp
-                      haskell-enable-hindent-style "gibiansky"
-                      haskell-process-type 'cabal-new-repl)
-                 ))))
-
-        (let
-          ((user-packages dotspacemacs-additional-packages ))
-          (setq
-            dotspacemacs-additional-packages
-              (append user-packages
-                '( lsp-mode
-                   lsp-ui
-                   lsp-haskell
-                   direnv
-                ))))
-      '';
-
-      home.file.".spacemacs.d/hook-user-config.el".text = ''
-        ;; just add (load "~/.spacemacs.d/hook-user-config.el") 
-        ;; at the end of dotspacemacs/user-config function
-
-        ;; lsp setup for haskell
-        ;; hie-wrapper must be installed and configured in the direnv setup
-        (setq lsp-haskell-process-path-hie "hie-wrapper")
-        (setq lsp-response-timeout 60)
-        (require 'lsp-haskell)
-        (add-hook 'haskell-mode-hook #'lsp)
-        (add-hook 'haskell-mode-hook #'direnv-update-environment)
-      '';
-
-    };
+      ;; lsp setup for haskell
+      ;; hie-wrapper must be installed and configured in the direnv setup
+      (setq lsp-haskell-process-path-hie "hie-wrapper")
+      (setq lsp-response-timeout 60)
+      (require 'lsp-haskell)
+      (add-hook 'haskell-mode-hook #'lsp)
+      (add-hook 'haskell-mode-hook #'direnv-update-environment)
+    '';
+  };
 }
 ```
 
@@ -150,21 +143,21 @@ You can install the `lsp` (in our case `hie-wrapper`) globally in your `configur
 I usually do this in my projects (via `lsp.nix`). Here is the part that differs.
 
 ```nix
-   home.file.".spacemacs.d/hook-user-config.el".text =
-     let
-       all-hies = import (fetchTarball "https://github.com/infinisil/all-hies/tarball/master") {};
-     in ''
-        ;; just add (load "~/.spacemacs.d/hook-user-config.el") 
-        ;; at the end of dotspacemacs/user-config function
+home.file.".spacemacs.d/hook-user-config.el".text =
+  let
+    all-hies = import (fetchTarball "https://github.com/infinisil/all-hies/tarball/master") {};
+  in ''
+    ;; just add (load "~/.spacemacs.d/hook-user-config.el") 
+    ;; at the end of dotspacemacs/user-config function
 
-        ;; lsp setup for haskell
-        (setq lsp-haskell-process-path-hie 
-          "${all-hies.selection{ selector = p: { inherit (p) ghc864;}; } }/bin/hie-wrapper")
-        (setq lsp-response-timeout 60)
-        (require 'lsp-haskell)
-        (add-hook 'haskell-mode-hook #'lsp)
-        (add-hook 'haskell-mode-hook #'direnv-update-environment) ;; still needed
-      '';
+    ;; lsp setup for haskell
+    (setq lsp-haskell-process-path-hie 
+      "${all-hies.selection{ selector = p: { inherit (p) ghc864;}; } }/bin/hie-wrapper")
+    (setq lsp-response-timeout 60)
+    (require 'lsp-haskell)
+    (add-hook 'haskell-mode-hook #'lsp)
+    (add-hook 'haskell-mode-hook #'direnv-update-environment) ;; still needed
+  '';
 ```
 
 ## Setup the project
diff --git a/content/nixos/nix-instantiate.md b/content/nixos/nix-instantiate.md
index 8863dd5..aac944b 100644
--- a/content/nixos/nix-instantiate.md
+++ b/content/nixos/nix-instantiate.md
@@ -562,7 +562,6 @@ in {
         # we create hcloud_ssh_keys, if admins exist
         ( mkIf ( length ( attrNames config.admins ) > 0 )
           adminSshKeys)
-
       ];
 }
 ```
diff --git a/content/nixos/tinc.md b/content/nixos/tinc.md
index e014ae4..3f2a9a4 100644
--- a/content/nixos/tinc.md
+++ b/content/nixos/tinc.md
@@ -135,8 +135,7 @@ in {
 
 # for all machines
 # ----------------
-default =
-{config, pkgs, lib, ... }:
+default = { config, pkgs, lib, ... }:
 {
   with lib;
   services.custom.tinc =
@@ -227,7 +226,6 @@ PING HAL.private (10.1.1.3) 56(84) bytes of data.
 
 **Awesome!** That was easy!
 
-
 ## Connect 2 sub-networks
 
 So far so good,
@@ -245,9 +243,7 @@ just add the `tincSubnet` parameter in the `hosts` attribute and your done.
 
 ```nix
 ...
-
-default =
-{config, pkgs, lib, ... }:
+default = { config, pkgs, lib, ... }:
 {
   with lib;
   services.custom.tinc =
diff --git a/content/slides/_index.md b/content/slides/_index.md
index e94ebfb..7485dc0 100644
--- a/content/slides/_index.md
+++ b/content/slides/_index.md
@@ -3,4 +3,5 @@ title: "slides"
 date: 2021-07-24T21:43:24+02:00
 ---
 
-Here is a collection of Slides I presented to people. Feel free to use and download them.
\ No newline at end of file
+Here is a collection of Slides I presented to people.
+Feel free to use and download them.
\ No newline at end of file