diff --git a/README.md b/README.md
index e0ce74c..c1a6dd1 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,3 @@
-# dotfiles
+# .dotfiles
 
-My dotfiles (configurations and settings) for shells, text editors and other terminal programs, plus a collection of scripts. Written for and work on various UNIX-like OSes, primarily for:
-
-- Arch Linux,
-- Linux Mint,
-- server Ubuntu,
-- macOS with GNU coreutils (i.e. BSDs are not supported),
-- Android with Termux.
-
-And also a legendary project that has survived for thousands of years of development.
-
-## Disclaimer
-
-### **This is my personal project! No warranty is provided for running these as a superuser, I am in no way responsible for deletion of `/` with `rm -rf`, and _absolutely no support is provided_ whatsoever unless I explicitly say so personally!**
-
-**It is also recommended for users of this repository to read the scripts they are running. I didn't write the comments just for myself!**
-
-**Automatic installers are deliberately not provided.**
+My dotfiles for macOS, Arch Linux, Raspbian and Android (Termux).
diff --git a/install.zsh b/install.zsh
new file mode 100755
index 0000000..f816480
--- /dev/null
+++ b/install.zsh
@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+
+DOTFILES_PATH="${0:a:h}"
+
+install_dotfile() {
+  local dest="$1"
+  local contents="$2"
+
+  if [[ -f "$dest" ]]; then
+    mv -vi "$dest" "$dest.dmitmel-dotfiles-backup"
+  fi
+
+  mkdir -pv "${dest:h}"
+  print -r -- "installing dotfile '$dest'"
+  print -r -- "$contents" > "$dest"
+}
+
+# ZSH
+for file_name in zshrc; do
+  file_path="$DOTFILES_PATH/zsh/$file_name"
+  install_dotfile "$HOME/.$file_name" "source ${(q)file_path}"
+done
+
+# Neovim
+for file_name in {init,ginit}.vim; do
+  file_path="$DOTFILES_PATH/nvim/$file_name"
+  install_dotfile "$HOME/.config/nvim/$file_name" "source ${(q)file_path}"
+done
+
+# Kitty
+file_name=kitty.conf
+file_path="$DOTFILES_PATH/kitty/$file_name"
+install_dotfile "$HOME/.config/kitty/$file_name" "include ${(q)file_path}"
+
+# tmux
+file_name=tmux.conf
+file_path="$DOTFILES_PATH/tmux/$file_name"
+install_dotfile "$HOME/.$file_name" "source-file ${(q)file_path}"
diff --git a/upgrade.zsh b/upgrade.zsh
new file mode 100755
index 0000000..81b28b3
--- /dev/null
+++ b/upgrade.zsh
@@ -0,0 +1,14 @@
+#!/usr/bin/env zsh
+
+DOTFILES_PATH="${0:a:h}"
+cd "$DOTFILES_PATH" || exit 1
+ZSH_DOTFILES="$DOTFILES_PATH/zsh"
+
+source "$ZSH_DOTFILES/functions.zsh"
+
+git pull --rebase --stat origin master
+git submodule update --init --recursive --remote --progress
+
+ZPLG_SKIP_LOADING=1
+source "$ZSH_DOTFILES/plugins.zsh"
+zplg-upgrade