diff --git a/.config/fish/config.fish b/.config/fish/config.fish
index 9843c93..7028a60 100644
--- a/.config/fish/config.fish
+++ b/.config/fish/config.fish
@@ -9,6 +9,13 @@ if status --is-login
     if test -d ~/.cargo/bin
        set PATH $PATH ~/.cargo/bin
     end
+    if test -d ~/.local/bin
+       set PATH $PATH ~/.local/bin
+    end
+end
+
+function fish_title
+  true
 end
 
 # This is here to make emacs and ansi-term work properly; I'm not *quite*
diff --git a/.emacs.d/core.el b/.emacs.d/core.el
index c640a9f..27190e7 100644
--- a/.emacs.d/core.el
+++ b/.emacs.d/core.el
@@ -466,6 +466,8 @@
   :preface
   (defun my-csharp-mode-hook ()
     "My C# mode hook."
+    (require 'prettysharp)
+    (prettysharp-mode)
     (turn-on-font-lock)
     (omnisharp-mode)
     (c-set-style "ms-csharp"))
diff --git a/.emacs.d/custom.el b/.emacs.d/custom.el
index 404aa88..4d60e17 100644
--- a/.emacs.d/custom.el
+++ b/.emacs.d/custom.el
@@ -20,11 +20,16 @@
                   (company-dabbrev-code company-gtags company-etags company-keywords)
                   company-oddmuse company-dabbrev company-flow)))
  '(css-indent-offset 2)
+ '(custom-safe-themes
+   (quote
+    ("8db4b03b9ae654d4a57804286eb3e332725c84d7cdab38463cb6b97d5762ad26" default)))
  '(fast-lock-cache-directories (quote ("~/flc-cache")))
  '(fast-lock-minimum-size nil)
  '(fill-column 77)
  '(find-file-run-dired t)
  '(flycheck-gcc-language-standard "c++11")
+ '(flycheck-javascript-flow-args nil)
+ '(flycheck-python-flake8-executable "python3")
  '(font-lock-global-modes t)
  '(font-lock-maximum-size nil)
  '(font-lock-support-mode (quote jit-lock-mode))
@@ -51,7 +56,7 @@
     ((sequence "TODO" "|" "DONE" "ABANDONED" "DEFERRED"))))
  '(package-selected-packages
    (quote
-    (lsp-ui wgrep fsharp-mode company-lsp cquery mustache-mode clang-format projectile dash-functional mocha add-node-modules-path rjsx-mode xref-js2 js2-refactor company omnisharp geiser cider clojure-mode graphviz-dot-mode multi-term xterm-color thrift markdown-mode tuareg merlin ag use-package flycheck dockerfile-mode js2-mode web-mode zencoding-mode tss switch-window python-mode paredit magit lua-mode go-mode go-autocomplete exec-path-from-shell csharp-mode color-theme-solarized color-theme-monokai auto-complete auto-complete-nxml flymake flyspell json-mode popup ruby-mode company-jedi tide ahg elm-mode monky)))
+    (lsp-ui yaml-mode wgrep fsharp-mode company-lsp cquery mustache-mode clang-format projectile dash-functional mocha add-node-modules-path rjsx-mode xref-js2 js2-refactor company omnisharp geiser cider clojure-mode graphviz-dot-mode multi-term xterm-color thrift markdown-mode tuareg merlin ag use-package flycheck dockerfile-mode js2-mode web-mode zencoding-mode tss switch-window python-mode paredit magit lua-mode go-mode go-autocomplete exec-path-from-shell csharp-mode color-theme-solarized color-theme-monokai auto-complete auto-complete-nxml flymake flyspell json-mode popup ruby-mode company-jedi tide ahg elm-mode monky)))
  '(reb-re-syntax (quote string))
  '(rmail-mail-new-frame t)
  '(safe-local-variable-values
diff --git a/site-lisp/prettysharp.el b/site-lisp/prettysharp.el
new file mode 100644
index 0000000..95e83b2
--- /dev/null
+++ b/site-lisp/prettysharp.el
@@ -0,0 +1,178 @@
+;;; prettysharp.el --- Support for formatting C# with prettysharp
+
+;;; Commentary:
+
+;; Copyright 2019 John Doty.  All rights reserved.
+
+;; This program is free software: you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by the Free
+;; Software Foundation, either version 3 of the License, or (at your option)
+;; any later version.
+
+;; This program is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+;; for more details.
+
+;; You should have received a copy of the GNU General Public License along
+;; with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;; Author: John Doty
+;; Version: 1.0.0
+;; Keywords: convenience wp edit csharp
+;; URL: https://github.com/decarabas/prettysharp
+;;
+;; This file is not part of GNU Emacs.
+
+;;; Code:
+(defgroup prettysharp nil
+  "Minor mode to format C# code on save."
+  :group 'languages
+  :prefix "prettysharp"
+  :link '(url-link "https://github.com/DeCarabas/PrettySharp"))
+
+(defcustom prettysharp-command "prettysharp"
+  "The 'prettysharp' command."
+  :type 'string
+  :group 'prettysharp)
+
+(defcustom prettysharp-show-errors 'echo
+  "Where to display prettysharp error output.
+
+It can either be displayed in its own buffer, in the echo area,
+or not at all."
+  :type '(choice
+          (const :tag "Own buffer" buffer)
+          (const :tag "Echo area" echo)
+          (const :tag "None" nil))
+  :group 'prettysharp)
+
+(defconst prettysharp/error-buffer-name " *PrettySharp Errors*"
+  "The title of the buffer we show errors in.")
+
+(defconst prettysharp/patch-buffer-name " *PrettySharp Patch*"
+  "The title of the buffer we format the patch in.")
+
+(defun prettysharp/show-errors (outfile)
+  "Display the errors in OUTFILE.
+
+Errors are displayed according to the value of prettysharp-show-errors."
+  (when prettysharp-show-errors
+    (let ((error-buffer (get-buffer-create prettysharp/error-buffer-name)))
+      (with-current-buffer error-buffer
+        (setq buffer-read-only nil)
+        (insert-file-contents outfile nil nil nil 'replace)
+        (cond
+         ((eq prettysharp-show-errors 'buffer)
+          (goto-char (point-min))
+          (insert "prettysharp errors:\n")
+          (compilation-mode)
+          (display-buffer error-buffer))
+
+         ((eq prettysharp-show-errors 'echo)
+          (message "%s" (buffer-string)))
+         )))))
+
+(defun prettysharp/clear-errors ()
+  "Clear any errors from PrettySharp."
+  (let ((error-buffer (get-buffer prettysharp/error-buffer-name)))
+    (when error-buffer
+      (message "Clear errors?")
+      (with-current-buffer error-buffer
+        (setq buffer-read-only nil)
+        (erase-buffer))
+      (kill-buffer error-buffer))))
+
+(defun prettysharp/make-patch (outfile patch-buffer)
+  "Diff the contents of the current buffer with OUTFILE, generate an RCS-style patch, and put the results into PATCH-BUFFER."
+  (call-process-region (point-min) (point-max) "diff" nil
+                       patch-buffer nil "-n" "--strip-trailing-cr"
+                       "-" outfile))
+
+(defun prettysharp/apply-diff (patch-buffer)
+  "Apply the contents of PATCH-BUFFER as an RCS diff against the current buffer."
+  (let ((target-buffer (current-buffer))
+        (line-offset 0))
+    (save-excursion
+      (goto-char (point-min))
+      (with-current-buffer patch-buffer
+        (goto-char (point-min))
+        (while (not (eobp))
+          (cond
+
+           ((looking-at "^$")
+            ;; blank line is a valid command, meaning do nothing.
+            (forward-line))
+
+           ((looking-at "^a\\([0-9]+\\) \\([0-9]+\\)$")
+            ;; add lines.
+            (forward-line)
+            (let ((text-start (point))
+                  (insert-at (string-to-number (match-string 1)))
+                  (line-count (string-to-number (match-string 2))))
+              (forward-line line-count)
+              (let ((to-insert (buffer-substring text-start (point))))
+                (with-current-buffer target-buffer
+                  (save-excursion
+                    (goto-char (point-min))
+                    (forward-line (+ insert-at line-offset))
+                    ;; It can happen that forward-line moves us to the end of
+                    ;; the buffer but not a blank line; in this case we need
+                    ;; to insert a newline.
+                    (if (and (eobp) (looking-at "$") (not (looking-at "^")))
+                        (insert "\n"))
+                    (insert to-insert))
+                  (setq line-offset (+ line-offset line-count))))))
+
+           ((looking-at "^d\\([0-9]+\\) \\([0-9]+\\)$")
+            ;; delete lines.
+            (forward-line)
+            (let ((delete-at (string-to-number (match-string 1)))
+                  (line-count (string-to-number (match-string 2))))
+              (with-current-buffer target-buffer
+                (save-excursion
+                  (goto-char (point-min))
+                  (forward-line (1- (+ delete-at line-offset)))
+                  (let ((delete-start (point)))
+                    (forward-line line-count)
+                    (delete-region delete-start (point))))
+                (setq line-offset (- line-offset line-count)))))
+
+           (t
+            (error "Unrecognized RCS command in prettysharp/apply-diff"))
+           ))))))
+
+(defun prettysharp ()
+  "Format the current buffer according to prettysharp."
+  (interactive)
+  (let ((outfile (make-temp-file "prettysharp" nil "cs"))
+        (patch-buffer (get-buffer-create prettysharp/patch-buffer-name))
+        (coding-system-for-read 'utf-8)
+        (coding-system-for-write 'utf-8))
+
+    (unwind-protect
+        (save-restriction
+          (widen)
+          (with-current-buffer patch-buffer
+            (erase-buffer))
+
+          (if (zerop (call-process-region (point-min) (point-max) prettysharp-command
+                                          nil (list :file outfile) nil))
+              (progn
+                (prettysharp/make-patch outfile patch-buffer)
+                (prettysharp/apply-diff patch-buffer)
+                (prettysharp/clear-errors))
+            (prettysharp/show-errors outfile)))
+
+      (delete-file outfile))))
+
+;;;###autoload
+(define-minor-mode prettysharp-mode
+  "Minor mode to run prettysharp on file save."
+  :lighter " pretty#"
+  (if prettysharp-mode
+      (add-hook 'before-save-hook 'prettysharp nil 'local)
+    (remove-hook 'before-save-hook 'prettysharp 'local)))
+
+(provide 'prettysharp)
+;;; prettysharp.el ends here