i3 gaps instalação Debian 10.2

apt install gcc make dh-autoreconf libxcb-keysyms1-dev libpango1.0-dev libxcb-util0-dev xcb libxcb1-dev libxcb-icccm4-dev libyajl-dev libev-dev libxcb-xkb-dev libxcb-cursor-dev libxkbcommon-dev libxcb-xinerama0-dev libxkbcommon-x11-dev libstartup-notification0-dev libxcb-randr0-dev libxcb-xrm0 libxcb-xrm-dev libxcb-shape0-dev

# clonar repositorio
git clone https://www.github.com/Airblader/i3 i3-gaps
cd i3-gaps

# compile & install
autoreconf --force --install
rm -rf build/
mkdir -p build && cd build/

../configure --prefix=/usr --sysconfdir=/etc --disable-sanitizers
make
sudo make install

-------------------

 
coloque no config

# Gaps
gaps inner 5 gaps outer 10

OBS: para tirar a borda preta de cima do wallpaper coloque no config
# Gaps anti-blackboard
for_window [class="^.*"] border pixel 0


I3gaps no Ubuntu 18.04

instale as dependências

sudo apt install libxcb1-dev libxcb-keysyms1-dev libpango1.0-dev libxcb-util0-dev libxcb-icccm4-dev libyajl-dev libstartup-notification0-dev libxcb-randr0-dev libev-dev libxcb-cursor-dev libxcb-xinerama0-dev libxcb-xkb-dev libxkbcommon-dev libxkbcommon-x11-dev autoconf xutils-dev libtool 

Instale biblioteca xcb

mkdir tmp
cd /tmp
git clone https://github.com/Airblader/xcb-util-xrm
cd xcb-util-xrm
git submodule update --init
./autogen.sh --prefix=/usr
make
sudo make install

instale o i3gaps

cd /tmp
git clone https://www.github.com/Airblader/i3 i3-gaps
cd i3-gaps
git checkout gaps && git pull
autoreconf --force --install
rm -rf build
mkdir build
cd build
../configure --prefix=/usr --sysconfdir=/etc
make
sudo make install

OBS: O tutorial acima parece não funcionar corretamente em 2019
a melhor forma que encontrei para instalar o i3-gaps no xubuntu foi atravês de ppa

$ sudo add-apt-repository ppa:kgilmer/speed-ricer
$ sudo apt-get update
$ sudo apt-get install i3-gaps