simonhorlick

#!/bin/bash

# run as root

for d in /sys/block/sd*
do
  s=$(basename $d)
  h=$(ls -l $d | egrep -o "host[0-9]+")
  t=$(ls -l $d | egrep -o "target[0-9:]*")
  a2=$(echo $t | egrep -o "[0-9]:[0-9]$" | sed 's/://')

simonhorlick

sudo zpool create -m /mnt/pool pool draid2 /dev/disk/by-path/pci-0000\:0b\:00.1-ata-3 /dev/disk/by-path/pci-0000\:ca\:00.0-ata-3 /dev/disk/by-path/pci-0000\:0b\:00.1-ata-7 /dev/disk/by-path/pci-0000\:ca\:00.1-ata-3 /dev/disk/by-path/pci-0000\:ca\:00.0-ata-7 /dev/disk/by-path/pci-0000\:ca\:00.1-ata-7

sudo zfs set atime=off pool

sudo zpool status

simonhorlick

Build the engine shared library

Make sure engine is on the same commit as the flutter tool. My flutter sdk is downloaded from the internet and placed in ~/src/github.com/flutter/sdk. The engine source is under ~/src/engine.

# Go into the engine/src/flutter directory
cd ~/src/engine/src/flutter
git checkout `cat ~/src/github.com/flutter/sdk/flutter/bin/internal/engine.version`

simonhorlick

sudo apt update
sudo apt install -y pulseaudio pulseaudio-module-bluetooth

sudo usermod -a -G bluetooth simon

sudo vim /etc/bluetooth/main.conf

Class = 0x41C
DiscoverableTimeout = 0

simonhorlick

# Configure zed to send emails
sudo sed -i 's/ZED_EMAIL_ADDR="root"/ZED_EMAIL_ADDR="simonhorlick@gmail.com"/g' /etc/zfs/zed.d/zed.rc
sudo sed -i 's/#ZED_EMAIL_PROG="mail"/ZED_EMAIL_PROG="msmtp"/g' /etc/zfs/zed.d/zed.rc
sudo sed -i "s/#ZED_EMAIL_OPTS=\"-s '@SUBJECT@' @ADDRESS@\"/ZED_EMAIL_OPTS=\"@ADDRESS@\"/g" /etc/zfs/zed.d/zed.rc
sudo sed -i 's/#ZED_NOTIFY_VERBOSE=0/ZED_NOTIFY_VERBOSE=1/g' /etc/zfs/zed.d/zed.rc

# Generate an app password for Mail and write it down
open https://myaccount.google.com/apppasswords

# Configure msmtp to send email via gmail smtp.

simonhorlick

# get the guid of the unavailable disk
sudo zpool status

# mark the unavailable disk as offline
sudo zpool offline default-pool 14714788819670456418

# replace with the new disk
sudo zpool replace default-pool 14714788819670456418 /dev/disk/by-id/usb-WD_My_Book_25ED_4437483757384B4E-0\:0

simonhorlick

# Using tailscale as a VPN replacement

Create an AWS instance, for example m5.xlarge using ubuntu and ssh into it.

```bash
curl -fsSL https://tailscale.com/install.sh | sh
echo 'net.ipv4.ip_forward = 1' | sudo tee -a /etc/sysctl.conf
# Don't use this if you need stateless autoconfiguration
echo 'net.ipv6.conf.all.forwarding = 1' | sudo tee -a /etc/sysctl.conf
sudo sysctl -p /etc/sysctl.conf

simonhorlick

// isPalindrome returns whether the given string is a palindrome. A palindrome
// is a word that reads the same forwards as it does backwards.
Palindromes.isPalindrome(x: String): Bool
  String.eql(x, String.reverse(x))

Palindromes.filterPalindromes(xs: List(String)): List(String)
  List.filter<>(Palindromes.isPalindrome, xs)

// main is a demo app that prints the palindromes in the words list.
Palindromes.main: IO(Unit)

simonhorlick

package main

import (
	"log"
	"net/http"

	"github.com/gorilla/mux"
)

func main() {

simonhorlick

#!/bin/bash

# Kill tsc when this script exits.
trap 'kill $(jobs -p)' EXIT

./node_modules/.bin/tsc --watch &

go run server.go