diff --git a/ubuntu/bbr.sh b/ubuntu/bbr.sh
deleted file mode 100755
index e16872e..0000000
--- a/ubuntu/bbr.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/sh
-
-if ! lsmod | grep bbr; then
-  echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
-  echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
-  sysctl -p
-fi
diff --git a/ubuntu/install-py3.sh b/ubuntu/install-py3.sh
deleted file mode 100755
index af1f1a9..0000000
--- a/ubuntu/install-py3.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-
-set -e
-
-# install python3.8
-sudo add-apt-repository ppa:deadsnakes/ppa
-sudo apt-get update
-sudo apt-get install python3.8
-
-# install pip and other distutils
-sudo apt install python3.8-distutils
-sudo python3.8 -m pip install --upgrade pip setuptools wheel
-
-# install virtualfish and enable auto_activation for `vf connect`
-sudo pip3 install virtualfish
-vf install
-vf addplugins auto_activation
diff --git a/ubuntu/install-sources.sh b/ubuntu/install-sources.sh
deleted file mode 100755
index e26237f..0000000
--- a/ubuntu/install-sources.sh
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/bash
-
-set -e
-
-DIR=$(dirname "${BASH_SOURCE[0]}")
-ARCH=$(lscpu | head -n 1 | awk '{print $2}')
-if [ ! -e /etc/apt/sources.bak ]; then
-  sudo mv /etc/apt/sources.list /etc/apt/sources.bak
-
-  CURRENT_CODENAME=$(lsb_release -c | cut -f2)
-  SOURCE_CODENAME=$(head -n 1 $DIR/sources.$ARCH.list | cut -d' ' -f3)
-  sudo bash -c "sed s/$SOURCE_CODENAME/$CURRENT_CODENAME/g $DIR/sources.$ARCH.list > /etc/apt/sources.list"
-fi
-
-# pip mirrors
-mkdir -p $HOME/.pip
-cat <<EOF > $HOME/.pip/pip.conf
-[global]
-#trusted-host =  mirrors.aliyun.com
-#index-url = https://mirrors.aliyun.com/pypi/simple
-index-url = https://pypi.doubanio.com/simple
-trusted-host = pypi.doubanio.com
-EOF
-
-# docker accelerator
-if [ -d /etc/docker ]; then
-  dj='{}'
-  [ -f /etc/docker/daemon.json ] && dj=$(cat /etc/docker/daemon.json)
-  echo $dj | jq '. + {"registry-mirrors": ["https://izuhlbap.mirror.aliyuncs.com"]}' > /etc/docker/daemon.json
-  systemctl restart docker
-fi
diff --git a/ubuntu/setup.sh b/ubuntu/setup.sh
deleted file mode 100755
index fb7d281..0000000
--- a/ubuntu/setup.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-set -e
-
-DIR=$(dirname "${BASH_SOURCE[0]}")
-
-echo '===================    Replace sources.list       ===================='
-$DIR/install-sources.sh
-echo '===================    Installing basic packages  ===================='
-$DIR/install-base.sh
-echo '===================    Installing fish shell      ===================='
-$DIR/install-fish.sh
-echo '===================    Installing nodejs          ===================='
-$DIR/install-nodejs.sh
-echo '===================    Installing vim             ===================='
-$DIR/install-vim.sh
-echo '===================    Installing tmux            ===================='
-$DIR/install-tmux.sh
diff --git a/ubuntu/sources.aarch64.list b/ubuntu/sources.aarch64.list
deleted file mode 100644
index a9e2d18..0000000
--- a/ubuntu/sources.aarch64.list
+++ /dev/null
@@ -1,17 +0,0 @@
-deb http://mirrors.aliyun.com/ubuntu-ports/ xenial main
-deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial main
-
-deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates main
-deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates main
-
-deb http://mirrors.aliyun.com/ubuntu-ports/ xenial universe
-deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial universe
-
-deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates universe
-deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates universe
-
-deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-security main
-deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-security main
-
-deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-security universe
-deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-security universe
diff --git a/ubuntu/sources.x86_64.list b/ubuntu/sources.x86_64.list
deleted file mode 100644
index 410a343..0000000
--- a/ubuntu/sources.x86_64.list
+++ /dev/null
@@ -1,15 +0,0 @@
-deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
-deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
-
-deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
-deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
-
-deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
-deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
-
-deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
-deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
-
-deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
-deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
-
diff --git a/ubuntu/wsl.sh b/ubuntu/wsl.sh
deleted file mode 100755
index 5c96668..0000000
--- a/ubuntu/wsl.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-
-if [ -t 1 ]; then
-  exec /usr/bin/fish
-fi