diff --git a/install.sh b/install.sh
index 9a0abe1..1a09b66 100755
--- a/install.sh
+++ b/install.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -e
 set -u
diff --git a/readme.md b/readme.md
index f05be29..e80398a 100644
--- a/readme.md
+++ b/readme.md
@@ -2,6 +2,18 @@ Tmux Configuration
 =====================
 Tmux configuration, that supercharges your [tmux](https://tmux.github.io/) and builds cozy and cool terminal environment.
 
+Contains minor updates by [Rafal Lukawiecki](https://github.com/rafallukawiecki) to the original created by [Alexey Samoshkin](https://github.com/samoshkin):
+ - Uses Solarized Dark palette colour names and choices.
+ - Prefers accent foreground colours to accented backgrounds to reduce contrasts jumps and permanently-on bright screen elements.
+ - F8 instead of F12 for 'Off' mode as F12 is bound to 'Dashboard' on some Apple MBPs (with TouchBar).
+ - European date format "Day Month" instead of "Month Day".
+ - duckduckgo.com instead of google.com as default search engine.
+ - Numeric IP (8.8.8.8) instead of FQDN as ping target for tmux-online-status.
+ - Original tmux wheel scrol speed of 5 lines, instead of 2.
+ - Binds C-a a for 'jump-to-line-start' command line editing.
+
+The remainder of the readme is from the upstream version of the config.
+
 ![intro](https://user-images.githubusercontent.com/768858/33152741-ec5f1270-cfe6-11e7-9570-6d17330a83aa.gif)
 
 Table of contents
@@ -52,7 +64,7 @@ Installation
 -------------
 Prerequisites:
 - tmux >= "v2.4"
-- OSX, Linux (tested on Ubuntu 14 and CentOS7)
+- OSX, Linux (tested on Ubuntu 14 and CentOS7), FreeBSD (tested on 11.1)
 
 Personally, I use it on OSX 10.11.5 El Capitan through iTerm2.
 
@@ -281,7 +293,7 @@ If you are an iTerm2 user, third column describes the keybinding of similar  "ac
         <td>-</td>
     </tr>
     <tr>
-        <td><code>&lt;prefix&gt; F12</code></td>
+        <td><code>&lt;prefix&gt; F8</code></td>
         <td>Switch off all key binding and prefix hanling in current window. See "Nested sessions" paragraph for more info</td>
         <td>-</td>
     </tr>
@@ -330,7 +342,7 @@ Second attempt to tackle this issue, is to [setup 2 individual prefixes](https:/
 
 And finally accepted solution, turn off all keybindings and key prefix handling in outer session, when working with inner one. This way, outer session just sits aside, without interfering keystrokes passed to inner session. Credits to [http://stahlke.org/dan/tmux-nested/](http://stahlke.org/dan/tmux-nested/) and this [Github issue](https://github.com/tmux/tmux/issues/237)
 
-So, how it works. When in outer session, simply press `F12` to toggle off all keybindings handling in outer session. Now work with inner session using the same keybinding scheme and same keyprefix. Press `F12` to turn on outer session back.
+So, how it works. When in outer session, simply press `F8` to toggle off all keybindings handling in outer session. Now work with inner session using the same keybinding scheme and same keyprefix. Press `F8` to turn on outer session back.
 
 ![nested sessions](https://user-images.githubusercontent.com/768858/33151636-84a0bab2-cfe1-11e7-9d5d-412525689c9b.gif)
 
@@ -354,7 +366,6 @@ There is a root keybinding to enter Copy mode: `M-Up`. Once in copy mode, you ha
 - scroll by line: `M-Up`, `M-down`
 - scroll by half screen: `M-PageUp`, `M-PageDown`
 - scroll by whole screen: `PageUp`, `PageDown`
-- scroll by mouse wheel, scroll step is changed from `5` lines to `2`
 
 `Space` starts selection, `Enter` copies selection and exits copy mode. List all items in copy buffer using `prefix C-p`, and paste most recent item from buffer using `prexix p`.
 
diff --git a/tmux/tmux.conf b/tmux/tmux.conf
index afa72fa..0695133 100644
--- a/tmux/tmux.conf
+++ b/tmux/tmux.conf
@@ -1,8 +1,13 @@
+# RLL Changes
+bind a send-prefix
+
 # ==========================
 # ===  General settings  ===
 # ==========================
 
-set -g default-terminal "screen-256color"
+# set -g default-terminal "screen-256color"
+set -g default-terminal "xterm-256color"
+set-option -ga terminal-overrides ",*256col*:Tc"
 set -g history-limit 20000
 set -g buffer-limit 20
 set -sg escape-time 0
@@ -38,10 +43,10 @@ unbind "\$" # rename-session
 unbind ,    # rename-window
 unbind %    # split-window -h
 unbind '"'  # split-window
-unbind }    # swap-pane -D
-unbind {    # swap-pane -U
-unbind [    # paste-buffer
-unbind ]    
+unbind "\}" # swap-pane -D
+unbind "\{" # swap-pane -U
+unbind "\[" # paste-buffer
+unbind "\]"
 unbind "'"  # select-window
 unbind n    # next-window
 unbind p    # previous-window
@@ -95,7 +100,7 @@ bind L command-prompt -p "Link window from (session:window): " "link-window -s %
 
 # Swap panes back and forth with 1st pane
 # When in main-(horizontal|vertical) layouts, the biggest/widest panel is always @1
-bind \ if '[ #{pane_index} -eq 1 ]' \
+bind "\\" if '[ #{pane_index} -eq 1 ]' \
      'swap-pane -s "!"' \
      'select-pane -t:.1 ; swap-pane -d -t 1 -s "!"'
 
@@ -164,8 +169,8 @@ bind -T copy-mode-vi PageDown          send-keys -X page-down
 bind -T copy-mode-vi PageUp            send-keys -X page-up
 
 # When scrolling with mouse wheel, reduce number of scrolled rows per tick to "2" (default is 5)
-bind -T copy-mode-vi WheelUpPane       select-pane \; send-keys -X -N 2 scroll-up
-bind -T copy-mode-vi WheelDownPane     select-pane \; send-keys -X -N 2 scroll-down
+# bind -T copy-mode-vi WheelUpPane       select-pane \; send-keys -X -N 2 scroll-up
+# bind -T copy-mode-vi WheelDownPane     select-pane \; send-keys -X -N 2 scroll-down
 
 # wrap default shell in reattach-to-user-namespace if available
 # there is some hack with `exec & reattach`, credits to "https://github.com/gpakosz/.tmux"
@@ -203,29 +208,40 @@ bind -T copy-mode-vi MouseDown1Pane select-pane \;\
 
 # Feel free to NOT use this variables at all (remove, rename)
 # this are named colors, just for convenience
-color_orange="colour166" # 208, 166
-color_purple="colour134" # 135, 134
-color_green="colour076" # 070
-color_blue="colour39"
-color_yellow="colour220"
-color_red="colour160"
-color_black="colour232"
-color_white="white" # 015
+
+# RLL Added Solarized palette
+color_solarized_base03="colour234"
+color_solarized_base02="#073642"
+color_solarized_base01="colour240"
+color_solarized_base00="colour241"
+color_solarized_base0="colour244"
+color_solarized_base1="colour245"
+color_solarized_base2="colour254"
+color_solarized_base3="colour230"
+color_solarized_yellow="colour136"
+color_solarized_orange="colour166"
+color_solarized_red="colour160"
+color_solarized_magenta="colour125"
+color_solarized_violet="colour061"
+color_solarized_blue="colour033"
+color_solarized_cyan="colour037"
+color_solarized_green="colour064"
+color_solarized_white="colour230" # base3
 
 # This is a theme CONTRACT, you are required to define variables below
 # Change values, but not remove/rename variables itself
-color_dark="$color_black"
-color_light="$color_white"
-color_session_text="$color_blue"
-color_status_text="colour245"
-color_main="$color_orange"
-color_secondary="$color_purple"
-color_level_ok="$color_green"
-color_level_warn="$color_yellow"
-color_level_stress="$color_red"
-color_window_off_indicator="colour088"
-color_window_off_status_bg="colour238"
-color_window_off_status_current_bg="colour254"
+color_dark="$color_solarized_base02"
+color_light="$color_solarized_base2"
+color_session_text="$color_solarized_blue"
+color_status_text="$color_solarized_base1"
+color_main="$color_solarized_base01"
+color_secondary="$color_solarized_violet"
+color_level_ok="$color_solarized_green"
+color_level_warn="$color_solarized_yellow"
+color_level_stress="$color_solarized_red"
+color_window_off_indicator="$color_solarized_orange"
+color_window_off_status_bg="$color_solarized_base02"
+color_window_off_status_current_bg="$color_solarized_base01"
 
 # =====================================
 # ===    Appearence and status bar  ===
@@ -266,11 +282,11 @@ set -g status-right-length 100
 # note, that this is not the complete list, some of them are loaded from plugins
 wg_session="#[fg=$color_session_text] #S #[default]"
 wg_battery="#{battery_status_fg} #{battery_icon} #{battery_percentage}"
-wg_date="#[fg=$color_secondary]%h %d %H:%M#[default]"
+wg_date="#[fg=$color_secondary]%-d %h %H:%M#[default]"
 wg_user_host="#[fg=$color_secondary]#(whoami)#[default]@#H"
 wg_is_zoomed="#[fg=$color_dark,bg=$color_secondary]#{?window_zoomed_flag,[Z],}#[default]"
 # TODO: highlighted for nested local session as well
-wg_is_keys_off="#[fg=$color_light,bg=$color_window_off_indicator]#([ $(tmux show-option -qv key-table) = 'off' ] && echo 'OFF')#[default]"
+wg_is_keys_off="#[fg=$color_window_off_indicator]#([ $(tmux show-option -qv key-table) = 'off' ] && echo 'Off')#[default]"
 
 set -g status-left "$wg_session"
 set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | $wg_date $wg_battery #{online_status}"
@@ -280,7 +296,8 @@ set -g @online_icon "#[fg=$color_level_ok]●#[default]"
 set -g @offline_icon "#[fg=$color_level_stress]●#[default]"
 
 # Configure view templates for tmux-plugin-sysstat "MEM" and "CPU" widget
-set -g @sysstat_mem_view_tmpl 'MEM:#[fg=#{mem.color}]#{mem.pused}#[default] #{mem.used}'
+set -g @sysstat_mem_view_tmpl '#[fg=#{mem.color}]#{mem.pused}#[default] #{mem.used}'
+set -g @sysstat_cpu_view_tmpl '#[fg=#{cpu.color}]#{cpu.pused}#[default]'
 
 # Configure colors for tmux-plugin-sysstat "MEM" and "CPU" widget
 set -g @sysstat_cpu_color_low "$color_level_ok"
@@ -322,7 +339,8 @@ set -g update-environment \
   SSH_CONNECTION\
   SSH_TTY\
   WINDOWID\
-  XAUTHORITY"
+  XAUTHORITY\
+  COLORFGBG"
 
 bind '$' run "~/.tmux/renew_env.sh"
 
@@ -344,7 +362,8 @@ set -g @sidebar-tree 't'
 set -g @sidebar-tree-focus 'T'
 set -g @sidebar-tree-command 'tree -C'
 
-set -g @open-S 'https://www.google.com/search?q='
+set -g @open-S 'https://www.duckduckgo.com/search?q='
+set -g @route_to_ping '8.8.8.8'
 
 
 # ==============================================
@@ -363,7 +382,7 @@ if-shell 'test -n "$SSH_CLIENT"' \
 # see: toggle on/off all keybindings · Issue #237 · tmux/tmux - https://github.com/tmux/tmux/issues/237
 
 # Also, change some visual styles when window keys are off
-bind -T root F12  \
+bind -T root F8  \
     set prefix None \;\
     set key-table off \;\
     set status-style "fg=$color_status_text,bg=$color_window_off_status_bg" \;\
@@ -372,7 +391,7 @@ bind -T root F12  \
     if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
     refresh-client -S \;\
 
-bind -T off F12 \
+bind -T off F8 \
   set -u prefix \;\
   set -u key-table \;\
   set -u status-style \;\
diff --git a/tmux/tmux.conf.orig b/tmux/tmux.conf.orig
new file mode 100644
index 0000000..17751e0
--- /dev/null
+++ b/tmux/tmux.conf.orig
@@ -0,0 +1,403 @@
+# RLL Changes
+bind a send-prefix
+
+# ==========================
+# ===  General settings  ===
+# ==========================
+
+# set -g default-terminal "screen-256color"
+set -g default-terminal "xterm-256color"
+set-option -ga terminal-overrides ",*256col*:Tc"
+set -g history-limit 20000
+set -g buffer-limit 20
+set -sg escape-time 0
+set -g display-time 1500
+set -g remain-on-exit off
+set -g repeat-time 300
+setw -g allow-rename off
+setw -g automatic-rename off
+setw -g aggressive-resize on
+
+# Change prefix key to C-a, easier to type, same to "screen"
+unbind C-b
+set -g prefix C-a
+
+# Set parent terminal title to reflect current window in tmux session 
+set -g set-titles on
+set -g set-titles-string "#I:#W"
+
+# Start index of window/pane with 1, because we're humans, not computers
+set -g base-index 1
+setw -g pane-base-index 1
+
+# Enable mouse support
+set -g mouse on
+
+
+# ==========================
+# ===   Key bindings     ===
+# ==========================
+
+# Unbind default key bindings, we're going to override
+unbind "\$" # rename-session
+unbind ,    # rename-window
+unbind %    # split-window -h
+unbind '"'  # split-window
+unbind }    # swap-pane -D
+unbind {    # swap-pane -U
+unbind [    # paste-buffer
+unbind ]    
+unbind "'"  # select-window
+unbind n    # next-window
+unbind p    # previous-window
+unbind l    # last-window
+unbind M-n  # next window with alert
+unbind M-p  # next window with alert
+unbind o    # focus thru panes
+unbind &    # kill-window
+unbind "#"  # list-buffer 
+unbind =    # choose-buffer
+unbind z    # zoom-pane
+unbind M-Up  # resize 5 rows up
+unbind M-Down # resize 5 rows down
+unbind M-Right # resize 5 rows right
+unbind M-Left # resize 5 rows left
+
+
+# Edit configuration and reload
+bind C-e new-window -n 'tmux.conf' "sh -c '\${EDITOR:-vim} ~/.tmux.conf && tmux source ~/.tmux.conf && tmux display \"Config reloaded\"'"
+
+# Reload tmux configuration 
+bind C-r source-file ~/.tmux.conf \; display "Config reloaded"
+
+# new window and retain cwd
+bind c new-window -c "#{pane_current_path}"
+
+# Prompt to rename window right after it's created
+set-hook -g after-new-window 'command-prompt -I "#{window_name}" "rename-window '%%'"'
+
+# Rename session and window
+bind r command-prompt -I "#{window_name}" "rename-window '%%'"
+bind R command-prompt -I "#{session_name}" "rename-session '%%'"
+
+# Split panes
+bind | split-window -h -c "#{pane_current_path}"
+bind _ split-window -v -c "#{pane_current_path}"
+
+# Select pane and windows
+bind -r C-[ previous-window
+bind -r C-] next-window
+bind -r [ select-pane -t :.-
+bind -r ] select-pane -t :.+
+bind -r Tab last-window   # cycle thru MRU tabs
+bind -r C-o swap-pane -D
+
+# Zoom pane
+bind + resize-pane -Z
+
+# Link window
+bind L command-prompt -p "Link window from (session:window): " "link-window -s %% -a"
+
+# Swap panes back and forth with 1st pane
+# When in main-(horizontal|vertical) layouts, the biggest/widest panel is always @1
+bind \ if '[ #{pane_index} -eq 1 ]' \
+     'swap-pane -s "!"' \
+     'select-pane -t:.1 ; swap-pane -d -t 1 -s "!"'
+
+# Kill pane/window/session shortcuts
+bind x kill-pane
+bind X kill-window
+bind C-x confirm-before -p "kill other windows? (y/n)" "kill-window -a"
+bind Q confirm-before -p "kill-session #S? (y/n)" kill-session
+
+# Merge session with another one (e.g. move all windows)
+# If you use adhoc 1-window sessions, and you want to preserve session upon exit
+# but don't want to create a lot of small unnamed 1-window sessions around
+# move all windows from current session to main named one (dev, work, etc)
+bind C-u command-prompt -p "Session to merge with: " \
+   "run-shell 'yes | head -n #{session_windows} | xargs -I {} -n 1 tmux movew -t %%'"
+
+# Detach from session
+bind d detach
+bind D if -F '#{session_many_attached}' \
+    'confirm-before -p "Detach other clients? (y/n)" "detach -a"' \
+    'display "Session has only 1 client attached"'
+
+# Hide status bar on demand
+bind C-s if -F '#{s/off//:status}' 'set status off' 'set status on'
+
+
+
+# ==================================================
+# === Window monitoring for activity and silence ===
+# ==================================================
+bind m setw monitor-activity \; display-message 'Monitor window activity [#{?monitor-activity,ON,OFF}]'
+bind M if -F '#{monitor-silence}' \
+    'setw monitor-silence 0 ; display-message "Monitor window silence [OFF]"' \
+    'command-prompt -p "Monitor silence: interval (s)" "setw monitor-silence %%"'
+
+# Activity bell and whistles
+set -g visual-activity on
+
+# TODO: Does not work as well, check on newer versions
+# set -g visual-silence on
+
+# BUG: bell-action other ignored · Issue #1027 · tmux/tmux · GitHub - https://github.com/tmux/tmux/issues/1027
+# set -g visual-bell on
+# setw -g bell-action other
+
+# ================================================
+# ===     Copy mode, scroll and clipboard      ===
+# ================================================
+set -g @copy_use_osc52_fallback on
+
+# Prefer vi style key table
+setw -g mode-keys vi
+
+bind p paste-buffer
+bind C-p choose-buffer
+
+# trigger copy mode by
+bind -n M-Up copy-mode
+
+# Scroll up/down by 1 line, half screen, whole screen
+bind -T copy-mode-vi M-Up              send-keys -X scroll-up
+bind -T copy-mode-vi M-Down            send-keys -X scroll-down
+bind -T copy-mode-vi M-PageUp          send-keys -X halfpage-up
+bind -T copy-mode-vi M-PageDown        send-keys -X halfpage-down
+bind -T copy-mode-vi PageDown          send-keys -X page-down
+bind -T copy-mode-vi PageUp            send-keys -X page-up
+
+# When scrolling with mouse wheel, reduce number of scrolled rows per tick to "2" (default is 5)
+# bind -T copy-mode-vi WheelUpPane       select-pane \; send-keys -X -N 2 scroll-up
+# bind -T copy-mode-vi WheelDownPane     select-pane \; send-keys -X -N 2 scroll-down
+
+# wrap default shell in reattach-to-user-namespace if available
+# there is some hack with `exec & reattach`, credits to "https://github.com/gpakosz/.tmux"
+# don't really understand how it works, but at least window are not renamed to "reattach-to-user-namespace"
+if -b "command -v reattach-to-user-namespace > /dev/null 2>&1" \
+    "run 'tmux set -g default-command \"exec $(tmux show -gv default-shell) 2>/dev/null & reattach-to-user-namespace -l $(tmux show -gv default-shell)\"'"
+
+yank="~/.tmux/yank.sh"
+
+# Copy selected text
+bind -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "$yank"
+bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "$yank"
+bind -T copy-mode-vi Y send-keys -X copy-line \;\
+    run "tmux save-buffer - | $yank"
+bind-key -T copy-mode-vi D send-keys -X copy-end-of-line \;\
+    run "tmux save-buffer - | $yank"
+bind -T copy-mode-vi C-j send-keys -X copy-pipe-and-cancel "$yank"
+bind-key -T copy-mode-vi A send-keys -X append-selection-and-cancel \;\
+    run "tmux save-buffer - | $yank"
+
+# Copy selection on drag end event, but do not cancel copy mode and do not clear selection
+# clear select on subsequence mouse click
+bind -T copy-mode-vi MouseDragEnd1Pane \
+    send-keys -X copy-pipe "$yank"
+bind -T copy-mode-vi MouseDown1Pane select-pane \;\
+   send-keys -X clear-selection
+    
+# iTerm2 works with clipboard out of the box, set-clipboard already set to "external"
+# tmux show-options -g -s set-clipboard
+# set-clipboard on|external
+
+# =====================================
+# ===           Theme               ===
+# =====================================
+
+# Feel free to NOT use this variables at all (remove, rename)
+# this are named colors, just for convenience
+
+# RLL Added Solarized palette
+color_solarized_base03="colour234"
+color_solarized_base02="#073642"
+color_solarized_base01="colour240"
+color_solarized_base00="colour241"
+color_solarized_base0="colour244"
+color_solarized_base1="colour245"
+color_solarized_base2="colour254"
+color_solarized_base3="colour230"
+color_solarized_yellow="colour136"
+color_solarized_orange="colour166"
+color_solarized_red="colour160"
+color_solarized_magenta="colour125"
+color_solarized_violet="colour061"
+color_solarized_blue="colour033"
+color_solarized_cyan="colour037"
+color_solarized_green="colour064"
+color_solarized_white="colour230" # base3
+
+# This is a theme CONTRACT, you are required to define variables below
+# Change values, but not remove/rename variables itself
+color_dark="$color_solarized_base02"
+color_light="$color_solarized_base2"
+color_session_text="$color_solarized_blue"
+color_status_text="$color_solarized_base1"
+color_main="$color_solarized_base01"
+color_secondary="$color_solarized_violet"
+color_level_ok="$color_solarized_green"
+color_level_warn="$color_solarized_yellow"
+color_level_stress="$color_solarized_red"
+color_window_off_indicator="$color_solarized_orange"
+color_window_off_status_bg="$color_solarized_base02"
+color_window_off_status_current_bg="$color_solarized_base01"
+
+# =====================================
+# ===    Appearence and status bar  ===
+# ======================================
+
+set -g mode-style "fg=default,bg=$color_main"
+
+# command line style
+set -g message-style "fg=$color_main,bg=$color_dark"
+
+# status line style
+set -g status-style "fg=$color_status_text,bg=$color_dark"
+
+# window segments in status line
+set -g window-status-separator ""
+separator_powerline_left=""
+separator_powerline_right=""
+
+# setw -g window-status-style "fg=$color_status_text,bg=$color_dark"
+setw -g window-status-format " #I:#W "
+setw -g window-status-current-style "fg=$color_light,bold,bg=$color_main"
+setw -g window-status-current-format "#[fg=$color_dark,bg=$color_main]$separator_powerline_right#[default] #I:#W# #[fg=$color_main,bg=$color_dark]$separator_powerline_right#[default]"
+
+# when window has monitoring notification
+setw -g window-status-activity-style "fg=$color_main"
+
+# outline for active pane
+setw -g pane-active-border-style "fg=$color_main"
+
+# general status bar settings
+set -g status on
+set -g status-interval 5
+set -g status-position top
+set -g status-justify left
+set -g status-right-length 100
+
+# define widgets we're going to use in status bar
+# note, that this is not the complete list, some of them are loaded from plugins
+wg_session="#[fg=$color_session_text] #S #[default]"
+wg_battery="#{battery_status_fg} #{battery_icon} #{battery_percentage}"
+wg_date="#[fg=$color_secondary]%-d %h %H:%M#[default]"
+wg_user_host="#[fg=$color_secondary]#(whoami)#[default]@#H"
+wg_is_zoomed="#[fg=$color_dark,bg=$color_secondary]#{?window_zoomed_flag,[Z],}#[default]"
+# TODO: highlighted for nested local session as well
+wg_is_keys_off="#[fg=$color_window_off_indicator]#([ $(tmux show-option -qv key-table) = 'off' ] && echo 'Off')#[default]"
+
+set -g status-left "$wg_session"
+set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | $wg_date $wg_battery #{online_status}"
+
+# online and offline icon for tmux-online-status
+set -g @online_icon "#[fg=$color_level_ok]●#[default]"
+set -g @offline_icon "#[fg=$color_level_stress]●#[default]"
+
+# Configure view templates for tmux-plugin-sysstat "MEM" and "CPU" widget
+set -g @sysstat_mem_view_tmpl '#[fg=#{mem.color}]#{mem.pused}#[default] #{mem.used}'
+set -g @sysstat_cpu_view_tmpl '#[fg=#{cpu.color}]#{cpu.pused}#[default]'
+
+# Configure colors for tmux-plugin-sysstat "MEM" and "CPU" widget
+set -g @sysstat_cpu_color_low "$color_level_ok"
+set -g @sysstat_cpu_color_medium "$color_level_warn"
+set -g @sysstat_cpu_color_stress "$color_level_stress"
+
+set -g @sysstat_mem_color_low "$color_level_ok"
+set -g @sysstat_mem_color_medium "$color_level_warn"
+set -g @sysstat_mem_color_stress "$color_level_stress"
+
+set -g @sysstat_swap_color_low "$color_level_ok"
+set -g @sysstat_swap_color_medium "$color_level_warn"
+set -g @sysstat_swap_color_stress "$color_level_stress"
+
+
+# Configure tmux-battery widget colors
+set -g @batt_color_full_charge "#[fg=$color_level_ok]"
+set -g @batt_color_high_charge "#[fg=$color_level_ok]"
+set -g @batt_color_medium_charge "#[fg=$color_level_warn]"
+set -g @batt_color_low_charge "#[fg=$color_level_stress]"
+
+# Configure tmux-prefix-highlight colors
+set -g @prefix_highlight_output_prefix '['
+set -g @prefix_highlight_output_suffix ']'
+set -g @prefix_highlight_fg "$color_dark"
+set -g @prefix_highlight_bg "$color_secondary"
+set -g @prefix_highlight_show_copy_mode 'on'
+set -g @prefix_highlight_copy_mode_attr "fg=$color_dark,bg=$color_secondary"
+
+
+# =====================================
+# ===        Renew environment      ===
+# =====================================
+set -g update-environment \
+  "DISPLAY\
+  SSH_ASKPASS\
+  SSH_AUTH_SOCK\
+  SSH_AGENT_PID\
+  SSH_CONNECTION\
+  SSH_TTY\
+  WINDOWID\
+  XAUTHORITY\
+  COLORFGBG"
+
+bind '$' run "~/.tmux/renew_env.sh"
+
+
+# ============================
+# ===       Plugins        ===
+# ============================
+set -g @plugin 'tmux-plugins/tpm'
+set -g @plugin 'tmux-plugins/tmux-battery'
+set -g @plugin 'tmux-plugins/tmux-prefix-highlight'
+set -g @plugin 'tmux-plugins/tmux-online-status'
+set -g @plugin 'tmux-plugins/tmux-sidebar'
+set -g @plugin 'tmux-plugins/tmux-copycat'
+set -g @plugin 'tmux-plugins/tmux-open'
+set -g @plugin 'samoshkin/tmux-plugin-sysstat'
+
+# Plugin properties
+set -g @sidebar-tree 't'
+set -g @sidebar-tree-focus 'T'
+set -g @sidebar-tree-command 'tree -C'
+
+set -g @open-S 'https://www.duckduckgo.com/search?q='
+set -g @route_to_ping '8.8.8.8'
+
+
+# ==============================================
+# ===   Nesting local and remote sessions     ===
+# ==============================================
+
+# Session is considered to be remote when we ssh into host
+if-shell 'test -n "$SSH_CLIENT"' \
+    'source-file ~/.tmux/tmux.remote.conf'
+
+# We want to have single prefix key "C-a", usable both for local and remote session
+# we don't want to "C-a" + "a" approach either
+# Idea is to turn off all key bindings and prefix handling on local session,
+# so that all keystrokes are passed to inner/remote session
+
+# see: toggle on/off all keybindings · Issue #237 · tmux/tmux - https://github.com/tmux/tmux/issues/237
+
+# Also, change some visual styles when window keys are off
+bind -T root F8  \
+    set prefix None \;\
+    set key-table off \;\
+    set status-style "fg=$color_status_text,bg=$color_window_off_status_bg" \;\
+    set window-status-current-format "#[fg=$color_window_off_status_bg,bg=$color_window_off_status_current_bg]$separator_powerline_right#[default] #I:#W# #[fg=$color_window_off_status_current_bg,bg=$color_window_off_status_bg]$separator_powerline_right#[default]" \;\
+    set window-status-current-style "fg=$color_dark,bold,bg=$color_window_off_status_current_bg" \;\
+    if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
+    refresh-client -S \;\
+
+bind -T off F8 \
+  set -u prefix \;\
+  set -u key-table \;\
+  set -u status-style \;\
+  set -u window-status-current-style \;\
+  set -u window-status-current-format \;\
+  refresh-client -S
+
+# Run all plugins' scripts
+run '~/.tmux/plugins/tpm/tpm'
diff --git a/tmux/yank.sh b/tmux/yank.sh
index 653e19f..65e9099 100755
--- a/tmux/yank.sh
+++ b/tmux/yank.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -eu
 
@@ -22,7 +22,10 @@ elif [ -n "${DISPLAY-}" ] && is_app_installed xsel; then
   copy_backend="xsel -i --clipboard"
 elif [ -n "${DISPLAY-}" ] && is_app_installed xclip; then
   copy_backend="xclip -i -f -selection primary | xclip -i -selection clipboard"
-elif [ -n "${copy_backend_remote_tunnel_port-}" ] && [ "$(ss -n -4 state listening "( sport = $copy_backend_remote_tunnel_port )" | tail -n +2 | wc -l)" -eq 1 ]; then
+# Check if ss installed, as there is no native ss on FreeBSD (use sockstat instead)
+elif [ -n "${copy_backend_remote_tunnel_port-}" ] && is_app_installed ss && [ "$(ss -n -4 state listening "( sport = $copy_backend_remote_tunnel_port )" | tail -n +2 | wc -l)" -eq 1 ]; then
+  copy_backend="nc localhost $copy_backend_remote_tunnel_port"
+elif [ -n "${copy_backend_remote_tunnel_port-}" ] && is_app_installed sockstat && sockstat -4 -l | grep -q ":$copy_backend_remote_tunnel_port" ; then
   copy_backend="nc localhost $copy_backend_remote_tunnel_port"
 fi