Working on vimrc and tmux.conf

.tmux.conf

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+# Use Home (mapped to Menu key on Babygram) as the primary prefix.
+set -g prefix Home
+
+# Keep Ctrl+B available as an alternative.
+set -g prefix2 C-b
+
+# Reload config.
+bind M-r source-file ~/.tmux.conf

.vimrc

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+set nocompatible
+
+" Enable line numbering
+set number
+
+" Configure backspace so it acts as it should act
+set backspace=eol,start,indent
+
+" Allow arrow keys to wrap onto the previous/next line.
+set whichwrap+=<,>,h,l
+
+" Enable syntax highlighting if available
+if has("syntax")
+	syntax on
+endif
+
+" Highlight search results
+set hlsearch
+
+" Show “invisible” characters
+set list lcs=tab:→\ ,space:·,nbsp:␣
+"eol:¶
+highlight SpecialKey ctermfg=darkgray
+highlight Nontext ctermfg=darkgray
+
+" Set utf8 as standard encoding
+set encoding=utf8
+
+"filetype detection, language-specific plugins, and automatic indentation
+filetype plugin indent on
+
+" Make tabs as wide as two spaces
+set tabstop=2
+
+" Copy indentation from previous line
+set smartindent
+set autoindent
+
+" Show the current mode
+set showmode
+
+" Show the filename in the window titlebar
+set title
+
+" Show the (partial) command as it’s being typed
+set showcmd
+
+" Centralize backups, swapfiles and undo history
+set backupdir=~/.vim/backups
+set directory=~/.vim/swaps
+if exists("&undodir")
+	set undodir=~/.vim/undo
+endif
+
+" :W sudo saves the file (useful for handling the permission-denied error)
+command! W execute 'w !sudo tee % > /dev/null' <bar> edit!