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file.txt contents

one
some text two
three

start app

$ APP_LISTEN=cli.cmd.two ./wrapper -stdin -- grep "some text"

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#!/usr/bin/env python3


events = [
    {
        "id" : 1,
        "name" : "user.created",
        "payload" : "name: labas, email:krabas",
        "created" : "2024-01-01 12:13:14"
    },

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package main

import (
	"log"
	"net/http"
	"time"

	"github.com/go-chi/chi/v5"
)

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{{ define "htmlbody" }}
<h1>Page 1</h1>
{{ range .Items }}
{{ block "item-row" . }}
<div>
  your page content {{ . }}
</div>
{{ end }}
{{ end }}
{{ end }}

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Setting up ssh public key authentication on macOS using a YubiKey 4

I largely followed Florin's blog post, but have a few notes to add regarding issues I encountered:

Basic setup notes

1. I used a YubiKey 4, while the blog describes using a YubiKey NEO. I'm sure a YubiKey 5 would also work. I'm also running macOS 10.13.6.
2. I installed GPGTools as recommended. However, as I'll note later, it seems that gpg-agent only automatically starts when gpg is used; for ssh, you'll need to ensure it's running.
3. Before generating your keys, decide what key size you want to use. If you run the list command inside gpg --edit-card, look for the Key attributes line to see what is currently selected. On my YubiKey 4, it defaulted to 2048 bits for all keys:

Key attributes ...: rsa2048 rsa2048 rsa2048

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Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope LocalMachine

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{{- range services -}}
  {{- if .Name | contains "sidecar" | not -}}
    {{- $groupedServices := (service .Name | byMeta "caddy_enable") -}}
    {{- $enabledServices := (index $groupedServices "true" ) -}}
    {{- range $enabledServices -}}
      {{- $vhost := index .ServiceMeta "caddy_vhost" -}}
      {{- scratch.MapSetX "vhosts" $vhost . -}}
    {{- end -}}
  {{- end -}}
{{- end -}}  

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package main

import (
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"

	"golang.org/x/net/webdav"

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job web {
  datacenters = ["dc1"]
  type        = "service"
  priority    = 70

  group app {
    count = 1

    task env {
      driver = "exec"

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[LINUX] Factorio Headless Server Guide

So, with credit to the Factorio wiki and cbednarski's helpful gist, I managed to eventually setup a Factorio headless server. Although, I thought the process could be nailed down/simplified to be a bit more 'tutorialised' and also to document how I got it all working for my future records.

The specific distro/version I'm using for this guide being Ubuntu Server 16.04.1 LTS. Although, that shouldn't matter, as long as your distro supports systemd (just for this guide, not a Factorio headless requirement, although most distros use it as standard now). The version of Factorio I shall be using is 0.14.20, although should work for any version of Factorio 0.14.12 and higher.

Just a note to newcomers: If there are any issues with the installation steps, people in the comments are doing a good job