fyrk's NixOS configuration

Structure

• home/: Home Manager configuration; rebuild with just hms
• nixos/: NixOS configuration for various systems, see below for a list; rebuild current system with just nors and remote system with just build <hostname>
  • nixos/_universal/: configuration common to all systems
  • nixos/_personal/: configuration specific to personal devices
  • nixos/_server/: configuration specific to servers
• pkgs/: custom Nix packages
• modules/: custom modules
  • modules/nixos/: custom NixOS modules

Devices

Name	Description	OS	Hardware
fluorine	main laptop	NixOS	Dell XPS 13 9310
helium	home router	OpenWrt	Cudy X6 v1
rubidium	home server	NixOS	Raspberry Pi 4B
niobium	phone	GrapheneOS	Google Pixel 6a
barium	tablet	LineageOS	Samsung Galaxy Tab S6 Lite (Wi-Fi)
osmium	VPS	NixOS	Hetzner
zinc	e-book reader	Linux	Tolino Shine Color (Kobo Clara Colour)

More Names

• Hydrogen (has .1)
• Thallium
• Nitrogen

To Do

• use Evolution from nixpkgs instead of Flatpak (doesn't work because after adding an EWS account, it won't show up; https://github.com/NixOS/nixpkgs/issues/190887)

How Tos

Set up LUKS with remote keyfile

# Generate keyfile
$ openssl rand -base64 4096 > luks-keyfile
# Store the keyfile's content securely
$ cat luks-keyfile | secret-tool store --label="My LUKS Keyfile" server-name keyfile
# Create the LUKS volume
$ secret-tool lookup server-name keyfile | base64 -d | ssh <host> sudo cryptsetup luksFormat <device> -

To unlock:

# rubidium
$ just luks-open rubidium

Create new calendar in Stalwart

from: https://github.com/stalwartlabs/stalwart/discussions/1670#discussioncomment-13634310

user=...
password=...
host="https://..."

create_calendar() {
  local login="$1"
  local id="$2"
  local name="$3"
  local color="$4" # e.g. '#f00'
  local order="$5" # zero-based index

  curl -u "$user:$password" \
       -X MKCOL "$host/dav/cal/$login/$id/" \
       -H "Depth: 0" \
       -H "Content-Type: application/xml" --data-binary @- <<EOF
<?xml version="1.0" encoding="utf-8"?>
<D:mkcol xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
  <D:set>
    <D:prop>
      <D:resourcetype>
        <D:collection/>
        <C:calendar/>
      </D:resourcetype>
      <D:displayname>$name</D:displayname>
      <calendar-color xmlns="http://apple.com/ns/ical/">$color</calendar-color>
      <calendar-order xmlns="http://apple.com/ns/ical/">$order</calendar-order>
    </D:prop>
  </D:set>
</D:mkcol>
EOF
}


create_calendar fyrk default Default "#26a269" 0
create_calendar fyrk hpi HPI "#007a9e" 10
create_calendar fyrk hpi_timetable "HPI Timetable" "#7664a0" 20
create_calendar fyrk hpi_exams "HPI Exams" "#b1063a" 30
create_calendar fyrk birthdays "Birthdays" "#f5c211" 40
create_calendar fyrk special_days "Special Days" "#1e1e1e" 50
create_calendar fyrk feiertage_brandenburg "Feiertage Brandenburg" "#000000" 60
create_calendar fyrk private "Private" "#8ff0a4" 70