Initial commit

dotfiles/common/.config/aichat/config.yaml.j2

@@ -0,0 +1,7 @@
+# see https://github.com/sigoden/aichat/blob/main/config.example.yaml
+
+model: claude:claude-haiku-4-5-20251001
+
+clients:
+  - type: claude
+    api_key: {{ ANTHROPIC_API_KEY }}

dotfiles/common/.env.j2

@@ -0,0 +1,2 @@
+OPENAI_API_KEY="{{ OPENAI_API_KEY }}"
+ANTHROPIC_API_KEY="{{ ANTHROPIC_API_KEY }}"

dotfiles/common/.gitconfig

@@ -0,0 +1,10 @@
+# This is Git's per-user configuration file.
+[user]
+	email = bryanroessler@gmail.com
+	name = Bryan Roessler
+[color]
+	ui = auto
+[credential]
+	helper = cache
+[init]
+	defaultBranch = main

dotfiles/common/.local/share/nautilus/scripts/share-link

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+# Nautilus script for creating one or more shared links
+# Requires wl-clipboard and notify-send
+
+ssh_server="bryanroessler.com"
+ssh_files_path="/var/www/repos.bryanroessler.com/files"
+www_files_path="https://repos.bryanroessler.com/files"
+
+if [[ "$#" -lt 1 ]]; then
+	echo "You must provide at least one argument"
+	exit 1
+fi
+
+hash wl-copy &>/dev/null || { echo "Please install wl-copy"; exit 1; }
+hash rsync &>/dev/null || { echo "Please install rsync"; exit 1; }
+
+if [[ -v NAUTILUS_SCRIPT_SELECTED_URIS ]]; then
+	readarray -t files <<< "$NAUTILUS_SCRIPT_SELECTED_URIS"
+	for f in "${files[@]}"; do
+		f="${f#file://}"
+		f="${f//\%20/ }"
+		fixed_files+=("$f")
+	done
+else
+	fixed_files=("$@")
+fi
+
+links_array=()
+for f in "${fixed_files[@]}"; do
+	[[ "$f" == "" ]] && continue
+	fname="${f##*/}"
+	random64=$(tr -dc 'a-zA-Z0-9' < /dev/urandom | fold -w 64 | head -n 1)
+	nohup rsync -a "$f" "${ssh_server}:${ssh_files_path}/${random64}/" &
+	links_array+=("$www_files_path/${random64}/${fname// /%20}")
+done
+
+if [[ "${#links_array[@]}" == 1 ]]; then
+	printf '%s' "${links_array[@]}" | wl-copy
+else
+	printf '%s\n' "${links_array[@]}" | wl-copy
+fi
+
+hash notify-send &>/dev/null &&
+	notify-send -t 3000 -i face-smile "share-link" "File(s) uploaded and link copied to clipboard"
+
+exit 0

dotfiles/common/.ssh/authorized_keys.j2

@@ -0,0 +1,3 @@
+{% for key in SSH_AUTHORIZED_KEYS %}
+{{ key }}
+{% endfor %}

dotfiles/common/.ssh/config

@@ -0,0 +1,42 @@
+HashKnownHosts yes
+AddressFamily inet
+
+Host *
+  StrictHostKeyChecking no
+
+Host uv.asc.edu
+    User uabbcr
+    ProxyJump roessler@hartmanlab.genetics.uab.edu
+
+Host router
+    Hostname router.lan
+    User root
+    ServerAliveCountMax 10
+    ServerAliveInterval 120
+
+Host home-router
+    Hostname home-router
+    User root
+
+Host ax6000
+    Hostname ax6000.lan
+    User root
+
+Host bryanroessler.com
+    Hostname 23.94.201.46
+
+Host hartmanlab
+    Hostname hartmanlab.genetics.uab.edu
+    User roessler
+
+Host workstation
+    Hostname workstation
+
+Host laptop
+    Hostname laptop
+
+Host vm-fedora42
+    Hostname vm-fedora42
+
+Host vm-alma9
+    Hostname 192.168.122.235

dotfiles/common/.tmux.conf

@@ -0,0 +1,32 @@
+# Synchronize windows shortcut
+unbind a
+bind a set-window-option synchronize-panes
+
+# Use | and - to split a window vertically and horizontally instead of " and % respoectively
+unbind '"'
+unbind %
+bind | split-window -h -c "#{pane_current_path}"
+bind - split-window -v -c "#{pane_current_path}"
+
+# Automatically set window title
+set-window-option -g automatic-rename on
+set-option -g set-titles on
+
+# Alias (Ctrl-b + k) to kill the current session
+bind-key k kill-session
+unbind r
+bind r \
+	source-file ~/.tmux.conf \;\
+	display 'Reloaded tmux config'
+
+# Set the history limit so we get lots of scrollback.
+setw -g history-limit 50000000
+
+# switch panes using Alt-arrow without prefix
+bind -n M-Left select-pane -L
+bind -n M-Right select-pane -R
+bind -n M-Up select-pane -U
+bind -n M-Down select-pane -D
+
+# Enable mouse mode
+set -g mouse on

dotfiles/common/.vimrc

@@ -0,0 +1,169 @@
+" File: .vimrc
+" Author: Jake Zimmerman <jake@zimmerman.io>
+"
+" How I configure Vim :P
+"
+
+" Gotta be first
+set nocompatible
+
+filetype off
+
+set rtp+=~/.vim/bundle/Vundle.vim
+call vundle#begin()
+
+Plugin 'VundleVim/Vundle.vim'
+
+" ----- Making Vim look good ------------------------------------------
+Plugin 'altercation/vim-colors-solarized'
+Plugin 'tomasr/molokai'
+Plugin 'vim-airline/vim-airline'
+Plugin 'vim-airline/vim-airline-themes'
+
+" ----- Vim as a programmer's text editor -----------------------------
+Plugin 'scrooloose/nerdtree'
+Plugin 'jistr/vim-nerdtree-tabs'
+Plugin 'vim-syntastic/syntastic'
+Plugin 'xolox/vim-misc'
+Plugin 'xolox/vim-easytags'
+Plugin 'majutsushi/tagbar'
+Plugin 'ctrlpvim/ctrlp.vim'
+Plugin 'vim-scripts/a.vim'
+
+" ----- Working with Git ----------------------------------------------
+Plugin 'airblade/vim-gitgutter'
+Plugin 'tpope/vim-fugitive'
+
+" ----- Other text editing features -----------------------------------
+Plugin 'Raimondi/delimitMate'
+
+" ----- man pages, tmux -----------------------------------------------
+Plugin 'jez/vim-superman'
+Plugin 'christoomey/vim-tmux-navigator'
+
+" ----- Syntax plugins ------------------------------------------------
+Plugin 'jez/vim-c0'
+Plugin 'jez/vim-ispc'
+Plugin 'kchmck/vim-coffee-script'
+
+" ---- Extras/Advanced plugins ----------------------------------------
+" Highlight and strip trailing whitespace
+"Plugin 'ntpeters/vim-better-whitespace'
+" Easily surround chunks of text
+"Plugin 'tpope/vim-surround'
+" Align CSV files at commas, align Markdown tables, and more
+"Plugin 'godlygeek/tabular'
+" Automaticall insert the closing HTML tag
+"Plugin 'HTML-AutoCloseTag'
+" Make tmux look like vim-airline (read README for extra instructions)
+"Plugin 'edkolev/tmuxline.vim'
+" All the other syntax plugins I use
+"Plugin 'ekalinin/Dockerfile.vim'
+"Plugin 'digitaltoad/vim-jade'
+"Plugin 'tpope/vim-liquid'
+"Plugin 'cakebaker/scss-syntax.vim'
+
+call vundle#end()
+
+filetype plugin indent on
+
+" --- General settings ---
+set backspace=indent,eol,start
+set ruler
+set number
+set showcmd
+set incsearch
+set hlsearch
+
+syntax on
+
+set mouse=a
+
+" We need this for plugins like Syntastic and vim-gitgutter which put symbols
+" in the sign column.
+hi clear SignColumn
+
+" ----- Plugin-Specific Settings --------------------------------------
+
+" ----- altercation/vim-colors-solarized settings -----
+" Toggle this to "light" for light colorscheme
+set background=dark
+
+" Uncomment the next line if your terminal is not configured for solarized
+let g:solarized_termcolors=256
+
+" Set the colorscheme
+colorscheme solarized
+
+
+" ----- bling/vim-airline settings -----
+" Always show statusbar
+set laststatus=2
+
+" Fancy arrow symbols, requires a patched font
+" To install a patched font, run over to
+"     https://github.com/abertsch/Menlo-for-Powerline
+" download all the .ttf files, double-click on them and click "Install"
+" Finally, uncomment the next line
+"let g:airline_powerline_fonts = 1
+
+" Show PASTE if in paste mode
+let g:airline_detect_paste=1
+
+" Show airline for tabs too
+let g:airline#extensions#tabline#enabled = 1
+
+" Use the solarized theme for the Airline status bar
+let g:airline_theme='solarized'
+
+" ----- jistr/vim-nerdtree-tabs -----
+" Open/close NERDTree Tabs with \t
+nmap <silent> <leader>t :NERDTreeTabsToggle<CR>
+" To have NERDTree always open on startup
+let g:nerdtree_tabs_open_on_console_startup = 1
+
+" ----- scrooloose/syntastic settings -----
+let g:syntastic_error_symbol = '✘'
+let g:syntastic_warning_symbol = "▲"
+augroup mySyntastic
+  au!
+  au FileType tex let b:syntastic_mode = "passive"
+augroup END
+
+
+" ----- xolox/vim-easytags settings -----
+" Where to look for tags files
+set tags=./tags;,~/.vimtags
+" Sensible defaults
+let g:easytags_events = ['BufReadPost', 'BufWritePost']
+let g:easytags_async = 1
+let g:easytags_dynamic_files = 2
+let g:easytags_resolve_links = 1
+let g:easytags_suppress_ctags_warning = 1
+
+" ----- majutsushi/tagbar settings -----
+" Open/close tagbar with \b
+nmap <silent> <leader>b :TagbarToggle<CR>
+" Uncomment to open tagbar automatically whenever possible
+"autocmd BufEnter * nested :call tagbar#autoopen(0)
+
+
+" ----- airblade/vim-gitgutter settings -----
+" In vim-airline, only display "hunks" if the diff is non-zero
+let g:airline#extensions#hunks#non_zero_only = 1
+
+
+" ----- Raimondi/delimitMate settings -----
+let delimitMate_expand_cr = 1
+augroup mydelimitMate
+  au!
+  au FileType markdown let b:delimitMate_nesting_quotes = ["`"]
+  au FileType tex let b:delimitMate_quotes = ""
+  au FileType tex let b:delimitMate_matchpairs = "(:),[:],{:},`:'"
+  au FileType python let b:delimitMate_nesting_quotes = ['"', "'"]
+augroup END
+
+" ----- jez/vim-superman settings -----
+" better man page support
+noremap K :SuperMan <cword><CR>
+

dotfiles/common/.zshrc

@@ -0,0 +1,143 @@
+# Shell options
+setopt autocd menucomplete correct globdots extendedglob nomatch notify \
+  share_history inc_append_history hist_expire_dups_first hist_reduce_blanks \
+  hist_find_no_dups hist_verify extended_history auto_pushd pushd_ignore_dups \
+  prompt_subst
+unsetopt beep
+bindkey -e
+
+# Load secrets
+if [[ -f $HOME/.env ]]; then
+  set -a # automatically export all variables
+  source "$HOME/.env"
+  set +a
+fi
+
+# Completions
+local compdump=${XDG_CACHE_HOME:-$HOME/.cache}/zsh/zcompdump-${HOST}-${ZSH_VERSION}
+[[ -d ${compdump:h} ]] || mkdir -p ${compdump:h}
+zstyle ':completion:*' menu select
+zstyle ':completion:*' gain-privileges 1
+zstyle ':completion:*:descriptions' format '%U%B%d%b%u'
+zmodload zsh/complist
+autoload -Uz compinit && compinit -d "$compdump"
+
+# History
+HISTFILE=${XDG_STATE_HOME:-$HOME}/.histfile
+[[ -d $HISTFILE:h ]] || mkdir -p $HISTFILE:h
+HISTSIZE=1000000
+SAVEHIST=1000000
+autoload -Uz up-line-or-beginning-search down-line-or-beginning-search
+zle -N up-line-or-beginning-search
+zle -N down-line-or-beginning-search
+
+# Colors
+autoload -Uz colors && colors
+
+# Prompt
+if [[ $EUID -eq 0 ]]; then
+  user_color=red
+else
+  user_color=white
+fi
+
+# Assign colors based on the hostname
+# https://www.ditig.com/256-colors-cheat-sheet
+if [[ -v TOOLBOX_PATH ]]; then
+  host_color=magenta
+elif [[ -v DISTROBOX_ENTER_PATH ]]; then
+  host_color=15
+else
+  case $HOSTNAME in
+    laptop)       host_color=green ;;
+    workstation)  host_color=red ;;
+    bryan-pc)     host_color=cyan ;;
+    time4vps)     host_color=blue ;;
+    racknerd)     host_color=yellow ;;
+    htpc)         host_color=214 ;;
+    hartmanlab)   host_color=magenta ;;
+    router)       host_color=blue ;;
+    ax6000)       host_color=87 ;;
+    home-router)  host_color=218 ;;
+    vm-fedora*)   host_color=57 ;;
+    vm-alma*)     host_color=214 ;;
+    *)            host_color=white ;;
+  esac
+fi
+
+_git_prompt() {
+  local br
+  if br=$(git symbolic-ref --short HEAD 2>/dev/null); then
+    print -n " %F{242}($br)%f"
+  fi
+}
+
+PROMPT='[%F{'$user_color'}%n%f@%F{'$host_color'}%m%f]%~$(_git_prompt)%(!.#.$) '
+# RPROMPT='%*' # display clock to right of screen
+precmd() { print -Pn "\e]0;%n@%m: ${PWD/#$HOME/~}\a" ; }
+
+# Set hostname on OpenWRT
+[[ -z $HOSTNAME ]] && HOSTNAME=$(noglob uci get system.@system[0].hostname 2>/dev/null)
+
+# Paths
+typeset -U path PATH
+path=(
+  $HOME/bin
+  $HOME/.local/bin
+  $HOME/documents/develop/scripts/shell/.local/bin
+  $HOME/.cargo/bin
+  $path
+)
+export PATH
+export R_LIBS_USER="$HOME/R/qhtcp-workflow"
+
+# Keybindings
+typeset -g -A key
+for k v in \
+  Home khome End kend Insert kich1 Backspace kbs Delete kdch1 \
+  Up kcuu1 Down kcud1 Left kcub1 Right kcuf1 PageUp kpp PageDown knp ShiftTab kcbt; do
+  [[ -n ${terminfo[$v]} ]] && key[$k]=${terminfo[$v]}
+done
+bindkey -- ${key[Home]-}      beginning-of-line
+bindkey -- ${key[End]-}       end-of-line
+bindkey -- ${key[Insert]-}    overwrite-mode
+bindkey -- ${key[Backspace]-} backward-delete-char
+bindkey -- ${key[Delete]-}    delete-char
+bindkey -- ${key[Left]-}      backward-char
+bindkey -- ${key[Right]-}     forward-char
+bindkey -- ${key[PageUp]-}    beginning-of-buffer-or-history
+bindkey -- ${key[PageDown]-}  end-of-buffer-or-history
+bindkey -- ${key[ShiftTab]-}  reverse-menu-complete
+bindkey -- ${key[Up]-}        up-line-or-beginning-search
+bindkey -- ${key[Down]-}      down-line-or-beginning-search
+
+if (( ${+terminfo[smkx]} && ${+terminfo[rmkx]} )); then
+  autoload -Uz add-zle-hook-widget
+  zle_app_start()  { echoti smkx; }
+  zle_app_finish() { echoti rmkx; }
+  add-zle-hook-widget zle-line-init    zle_app_start
+  add-zle-hook-widget zle-line-finish  zle_app_finish
+fi
+
+# Aliases and one-liners
+alias ll='ls -lh'
+alias la='ls -A'
+alias vmd='vmd -nt'
+alias dnf-list-files='dnf repoquery -l'
+alias gedit='gnome-text-editor'
+alias xclip='xclip -selection c'
+alias pdoman='podman'
+alias git-list='git ls-tree -r HEAD --name-only'
+alias chatgpt='aichat'
+alias chromium='chromium --disable-features=GlobalShortcutsPortal'
+
+podman-pull-all() {
+  for image in $(podman images --format "{{.Repository}}:{{.Tag}}"); do
+    podman pull "$image"
+  done
+}
+
+buildah-prune() { buildah rm --all; }
+
+export EDITOR="code --wait"
+

dotfiles/laptop/.config/btrbk/btrbk.conf

@@ -0,0 +1,176 @@
+#
+# Example btrbk configuration file
+#
+#
+# Please refer to the btrbk.conf(5) man-page for a complete
+# description of all configuration options.
+#
+# Note that the options can be overridden per volume/subvolume/target
+# in the corresponding sections.
+#
+# Enable transaction log
+transaction_log            /var/log/btrbk.log
+
+# Enable stream buffer. Adding a buffer between the sending and
+# receiving side is generally a good idea.
+# NOTE: If enabled, make sure the "mbuffer" package is installed on
+# the target host!
+#stream_buffer              512m
+
+# Directory in which the btrfs snapshots are created. Relative to
+# <volume-directory> of the volume section.
+# If not set, the snapshots are created in <volume-directory>.
+#
+# If you want to set a custom name for the snapshot (and backups),
+# use the "snapshot_name" option within the subvolume section.
+#
+# NOTE: btrbk does not autmatically create this directory, and the
+# snapshot creation will fail if it is not present.
+#
+snapshot_dir               .snapshots
+
+# Always create snapshots. Set this to "ondemand" to only create
+# snapshots if the target volume is reachable. Set this to "no" if
+# snapshot creation is done by another instance of btrbk.
+snapshot_create            ondemand
+
+# Perform incremental backups (set to "strict" if you want to prevent
+# creation of non-incremental backups if no parent is found).
+#incremental                yes
+
+# Specify after what time (in full hours after midnight) backups/
+# snapshots are considered as a daily backup/snapshot
+#preserve_hour_of_day       0
+
+# Specify on which day of week weekly/monthly backups are to be
+# preserved.
+#preserve_day_of_week       sunday
+
+# Preserve all snapshots for a minimum period of time.
+#snapshot_preserve_min      1d
+
+# Retention policy for the source snapshots.
+#snapshot_preserve          <NN>h <NN>d <NN>w <NN>m <NN>y
+
+# Preserve all backup targets for a minimum period of time.
+#target_preserve_min        no
+
+# Retention policy for backup targets:
+#target_preserve            <NN>h <NN>d <NN>w <NN>m <NN>y
+
+# Retention policy for archives ("btrbk archive" command):
+#archive_preserve_min       no
+#archive_preserve           <NN>h <NN>d <NN>w <NN>m <NN>y
+
+# Specify SSH private key for "ssh://" volumes / targets:
+#ssh_identity               /etc/btrbk/ssh/id_ed25519
+ssh_identity               /root/.ssh/id_ed25519
+ssh_user                   root
+ssh_compression            no
+#ssh_cipher_spec            default
+
+compat_remote              busybox
+send_protocol              2
+
+# Enable compression for remote btrfs send/receive operations:
+stream_compress            no
+#stream_compress_level      default
+#stream_compress_threads    default
+
+# Enable lock file support: Ensures that only one instance of btrbk
+# can be run at a time.
+lockfile                   /var/lock/btrbk.lock
+
+# Don't wait for transaction commit on deletion. Set this to "after"
+# or "each" to make sure the deletion of subvolumes is committed to
+# disk when btrbk terminates.
+#btrfs_commit_delete        no
+#
+# Volume section: "volume <volume-directory>"
+#
+#   <volume-directory>  Directory of a btrfs volume (or subvolume)
+#                       containing the subvolume to be backuped
+#                       (usually the mount-point of a btrfs filesystem
+#                       mounted with subvolid=5 option)
+#
+# Subvolume section: "subvolume <subvolume-name>"
+#
+#   <subvolume-name>    Subvolume to be backuped, relative to
+#                       <volume-directory> in volume section.
+#
+# Target section: "target <type> <volume-directory>"
+#
+#   <type>              (optional) type, defaults to "send-receive".
+#   <volume-directory>  Directory of a btrfs volume (or subvolume)
+#                       receiving the backups.
+#
+# NOTE: The parser does not care about indentation, this is only for
+# human readability. The options always apply to the last section
+# encountered, overriding the corresponding option of the upper
+# section. This means that the global options must be set before any
+# "volume" section.
+#
+#
+# Example configuration:
+#
+# Backup to external disk mounted on /mnt/btr_backup
+#volume /mnt/btr_pool
+  # no action if external disk is not attached
+#  snapshot_create  ondemand
+
+  # propagates to all subvolume sections:
+#  target /mnt/btr_backup/_btrbk
+
+#  subvolume  root_gentoo
+#  subvolume  kvm
+    # use different retention policy for kvm backups
+#    target_preserve     7d 4w
+
+
+# Backup to external disk as well as some remote host
+#volume /mnt/btr_data
+#  subvolume  home
+    # always create snapshot, even if targets are unreachable
+#    snapshot_create  always
+#    target /mnt/btr_backup/_btrbk
+#    target ssh://backup.my-remote-host.com/mnt/btr_backup
+
+
+# Backup from remote host, with different naming
+#volume ssh://my-remote-host.com/mnt/btr_pool
+#  subvolume data_0
+#    snapshot_dir   snapshots/btrbk
+#    snapshot_name  data_main
+#    target /mnt/btr_backup/_btrbk/my-remote-host.com
+
+
+# Resume backups from remote host which runs its own btrbk instance
+# creating snapshots for "home" in "/mnt/btr_pool/btrbk_snapshots".
+#volume ssh://my-remote-host.com/mnt/btr_pool
+#  snapshot_dir           btrbk_snapshots
+#  snapshot_create        no
+#  snapshot_preserve_min  all
+#  subvolume home
+#    target /mnt/btr_backup/_btrbk/my-remote-host.com
+
+snapshot_preserve_min   2d
+snapshot_preserve       14d
+
+target_preserve_min     no
+target_preserve         14d 10w *m
+
+archive_preserve_min    latest
+archive_preserve        12m 10y
+
+subvolume /
+  target_preserve 14d 10w 6m
+  snapshot_dir /.snapshots
+  target ssh://workstation/mnt/backup/laptop/root
+  # target ssh://router.lan/mnt/backup/laptop/root
+
+volume /home
+  subvolume bryan
+  # target /mnt/backup/laptop/home
+  target ssh://workstation/mnt/backup/laptop/home
+  # target ssh://router.lan/mnt/backup/laptop/home
+

dotfiles/workstation/.config/btrbk/btrbk.conf

@@ -0,0 +1,253 @@
+#
+# Example btrbk configuration file
+#
+#
+# Please refer to the btrbk.conf(5) man-page for a complete
+# description of all configuration options.
+# For more examples, see README.md included with this package.
+#
+#   btrbk.conf(5): <https://digint.ch/btrbk/doc/btrbk.conf.5.html>
+#   README.md:     <https://digint.ch/btrbk/doc/readme.html>
+#
+# Note that the options can be overridden per volume/subvolume/target
+# in the corresponding sections.
+#
+
+
+# Enable transaction log
+transaction_log            /var/log/btrbk.log
+
+# Specify SSH private key for remote connections
+ssh_identity               /home/bryan/.config/btrbk/id_ed25519
+ssh_user                   root
+
+# Use sudo if btrbk or lsbtr is run by regular user
+backend_local_user         btrfs-progs-sudo
+
+# Enable stream buffer. Adding a buffer between the sending and
+# receiving side is generally a good idea.
+# NOTE: If enabled, make sure to install the "mbuffer" package!
+stream_buffer              1g
+
+# Directory in which the btrfs snapshots are created. Relative to
+# <volume-directory> of the volume section.
+# If not set, the snapshots are created in <volume-directory>.
+#
+# If you want to set a custom name for the snapshot (and backups),
+# use the "snapshot_name" option within the subvolume section.
+#
+# NOTE: btrbk does not automatically create this directory, and the
+# snapshot creation will fail if it is not present.
+#
+snapshot_dir               .snapshots
+
+# Always create snapshots. Set this to "ondemand" to only create
+# snapshots if the target volume is reachable. Set this to "no" if
+# snapshot creation is done by another instance of btrbk.
+snapshot_create            onchange
+
+# Perform incremental backups (set to "strict" if you want to prevent
+# creation of non-incremental backups if no parent is found).
+#incremental                yes
+
+# Specify after what time (in full hours after midnight) backups/
+# snapshots are considered as a daily backup/snapshot
+#preserve_hour_of_day       0
+
+# Specify on which day of week weekly/monthly backups are to be
+# preserved.
+#preserve_day_of_week       sunday
+
+# Preserve all snapshots for a minimum period of time.
+#snapshot_preserve_min      1d
+
+# Retention policy for the source snapshots.
+#snapshot_preserve          <NN>h <NN>d <NN>w <NN>m <NN>y
+
+# Preserve all backup targets for a minimum period of time.
+#target_preserve_min        no
+
+# Retention policy for backup targets:
+#target_preserve            <NN>h <NN>d <NN>w <NN>m <NN>y
+
+# Retention policy for archives ("btrbk archive" command):
+#archive_preserve_min       no
+#archive_preserve           <NN>h <NN>d <NN>w <NN>m <NN>y
+
+# Enable compression for remote btrfs send/receive operations:
+#stream_compress            no
+#stream_compress_level      default
+#stream_compress_threads    default
+
+# Enable lock file support: Ensures that only one instance of btrbk
+# can be run at a time.
+lockfile                   /var/lock/btrbk.lock
+
+# Don't wait for transaction commit on deletion. Enable this to make
+# sure the deletion of subvolumes is committed to disk when btrbk
+# terminates.
+#btrfs_commit_delete no
+
+
+#
+# Volume section (optional): "volume <volume-directory>"
+#
+#   <volume-directory>  Base path within a btrfs filesystem
+#                       containing the subvolumes to be backuped
+#                       (usually the mount-point of a btrfs filesystem
+#                       mounted with subvolid=5 option).
+#
+# Subvolume section: "subvolume <subvolume-name>"
+#
+#   <subvolume-name>    Subvolume to be backuped, relative to
+#                       <volume-directory> in volume section.
+#
+# Target section: "target <type> <volume-directory>"
+#
+#   <type>              (optional) type, defaults to "send-receive".
+#   <volume-directory>  Directory within a btrfs filesystem
+#                       receiving the backups.
+#
+# NOTE: The parser does not care about indentation, this is only for
+# human readability. All options apply to the last section
+# encountered, overriding the corresponding option of the upper
+# section. This means that the global options must be set on top,
+# before any "volume", "subvolume" or "target section.
+#
+
+#
+# Example retention policy:
+#
+# snapshot_preserve_min   2d
+# snapshot_preserve       14d
+# target_preserve_min     no
+# target_preserve         20d 10w *m
+
+snapshot_preserve_min   2d
+snapshot_preserve       14d
+
+target_preserve_min     no
+target_preserve         14d 10w *m
+
+archive_preserve_min    latest
+archive_preserve        12m 10y
+
+# Global settings
+compat_remote busybox
+send_protocol 2
+
+# Root backup workaround, omit the volume section
+subvolume /
+  target_preserve 14d 10w 6m
+  snapshot_dir /.snapshots # Absolute path to snapshots dir
+  target /mnt/backup/workstation/root
+  # target ssh://router.lan/mnt/backup/workstation/root
+# target /run/media/bryan/backup/workstation/root
+# target ssh://home-router/mnt/backup/workstation/root
+
+volume /home
+  subvolume bryan
+    target /mnt/backup/workstation/home
+    # target ssh://router.lan/mnt/backup/workstation/home
+    target_preserve 14d 10w 6m
+    # target ssh://home-router/mnt/backup/workstation/home
+    # target /run/media/bryan/backup/workstation/home
+
+volume /mnt/downloads
+  subvolume downloads
+    target /mnt/backup/workstation/downloads
+    # target /run/media/bryan/backup/workstation/downloads
+
+volume /
+  subvolume /mnt/ebooks
+    target /mnt/backup/media
+  subvolume /mnt/cover-art
+    target /mnt/backup/media
+  # target ssh://router.lan/mnt/backup/media
+  # target ssh://home-router/mnt/backup/media
+
+volume /mnt/array/media
+  target /mnt/backup/media
+  # target ssh://router.lan/mnt/backup/media
+  # target ssh://home-router/mnt/backup/media
+  subvolume pictures
+  subvolume music
+    target_preserve_min all # for home-router to keep samba share (and safer overall)
+
+
+# #
+# # Simple setup: Backup root and home to external disk
+# #
+# snapshot_dir /btrbk_snapshots
+# target       /mnt/btr_backup
+# subvolume    /
+# subvolume    /home
+
+
+# #
+# # Complex setup
+# #
+# # In order to keep things organized, it is recommended to use "volume"
+# # sections and mount the top-level subvolume (subvolid=5):
+# #
+# #  $ mount -o subvolid=5 /dev/sda1 /mnt/btr_pool
+# #
+# # Backup to external disk mounted on /mnt/btr_backup
+# volume /mnt/btr_pool
+#   # Create snapshots in /mnt/btr_pool/btrbk_snapshots
+#   snapshot_dir btrbk_snapshots
+
+#   # Target for all subvolume sections:
+#   target /mnt/btr_backup
+
+#   # Some default btrfs installations (e.g. Ubuntu) use "@" for rootfs
+#   # (mounted at "/") and "@home" (mounted at "/home"). Note that this
+#   # is only a naming convention.
+#   #subvolume @
+#   subvolume root
+#   subvolume home
+#   subvolume kvm
+#     # Use different retention policy for kvm backups:
+#     target_preserve 7d 4w
+
+
+# # Backup data to external disk as well as remote host
+# volume /mnt/btr_data
+#   subvolume  data
+#     # Always create snapshot, even if targets are unreachable
+#     snapshot_create always
+#     target /mnt/btr_backup
+#     target ssh://backup.my-remote-host.com/mnt/btr_backup
+
+
+# # Backup from remote host, with different naming
+# volume ssh://my-remote-host.com/mnt/btr_pool
+#   subvolume data_0
+#     snapshot_dir   snapshots/btrbk
+#     snapshot_name  data_main
+#     target /mnt/btr_backup/my-remote-host.com
+
+
+# # Backup on demand (noauto) to remote host running busybox, login as
+# # regular user using ssh-agent with current user name (ssh_user no)
+# # and default credentials (ssh_identity no).
+# volume /home
+#   noauto  yes
+#   compat  busybox
+#   backend_remote  btrfs-progs-sudo
+#   ssh_user      no
+#   ssh_identity  no
+
+#   target ssh://my-user-host.com/mnt/btr_backup/home
+#   subvolume  alice
+#   subvolume  bob
+
+
+# # Resume backups from remote host which runs its own btrbk instance
+# # creating snapshots for "home" in "/mnt/btr_pool/btrbk_snapshots".
+# volume ssh://my-remote-host.com/mnt/btr_pool
+#   snapshot_dir           btrbk_snapshots
+#   snapshot_create        no
+#   snapshot_preserve_min  all
+#   subvolume home
+#     target /mnt/btr_backup/my-remote-host.com