v0.2.1-alpha: Add snapshot infrastructure configs

- Added @ subvolume structure for openSUSE-style btrfs
- Configured snapper for automatic timeline snapshots
- Added Nvidia kernel parameters to GRUB
- Fixed SDDM/KDE boot issues (PAM, elogind, agetty)
- Enabled cronie for hourly snapshot automation

configs/fstab

@@ -0,0 +1,22 @@
+# /etc/fstab: static file system information.
+#
+# See the manpage fstab(5) for more information.
+#
+# NOTE: The root filesystem should have a pass number of either 0 or 1.
+#       All other filesystems should have a pass number of 0 or greater than 1.
+#
+# NOTE: Even though we list ext4 as the type here, it will work with ext2/ext3
+#       filesystems.  This just tells the kernel to use the ext4 driver.
+#
+# NOTE: You can use full paths to devices like /dev/sda3, but it is often
+#       more reliable to use filesystem labels or UUIDs. See your filesystem
+#       documentation for details on setting a label. To obtain the UUID, use
+#       the blkid(8) command.
+
+# <fs>			<mountpoint>	<type>		<opts>		<dump> <pass>
+
+#LABEL=boot		/boot		ext4		defaults	1 2
+#UUID=58e72203-57d1-4497-81ad-97655bd56494		/		xfs		defaults		0 1
+#LABEL=swap		none		swap		sw		0 0
+#/dev/cdrom		/mnt/cdrom	auto		noauto,ro	0 0
+UUID=5d9a4058-2428-4e06-93ca-dc1f3bf5c703  /  btrfs  defaults,subvol=@  0  1

configs/grub/40_custom

@@ -0,0 +1,13 @@
+#!/bin/sh
+exec tail -n +3 $0
+### Gentoo GNU/Linux ###
+menuentry 'Gentoo GNU/Linux (callisto-galileo)' {
+ insmod gzio
+ insmod part_gpt
+ insmod btrfs
+ search --no-floppy --fs-uuid --set=root 5d9a4058-2428-4e06-93ca-dc1f3bf5c703
+ echo 'Loading Linux 6.12.41-gentoo-x86_64 ...'
+ linux /@/boot/vmlinuz-6.12.41-gentoo-x86_64 root=UUID=5d9a4058-2428-4e06-93ca-dc1f3bf5c703 ro quiet nvidia_drm.modeset=1 rd.driver.blacklist=nouveau rootflags=subvol=@
+ echo 'Loading initial ramdisk ...'
+ initrd /@/boot/initramfs-6.12.41-gentoo-x86_64.img
+}

configs/portage/make.conf

@@ -0,0 +1,8 @@
+COMMON_FLAGS="-O2 -pipe"
+CFLAGS="${COMMON_FLAGS}"
+CXXFLAGS="${COMMON_FLAGS}"
+LC_MESSAGES=C.UTF-8
+VIDEO_CARDS="nvidia"
+PORTAGE_BINHOST="ssh://root@10.0.0.194/var/cache/binpkgs"
+#PORTAGE_BINHOST="https://distfiles.gentoo.org/releases/amd64/binpackages/23.0/x86-64/"
+FEATURES="-verify-sig -binpkg-request-signature"

configs/snapper/root

@@ -0,0 +1,64 @@
+
+# subvolume to snapshot
+SUBVOLUME="/"
+
+# filesystem type
+FSTYPE="btrfs"
+
+
+# btrfs qgroup for space aware cleanup algorithms
+QGROUP=""
+
+
+# fraction or absolute size of the filesystems space the snapshots may use
+SPACE_LIMIT="0.5"
+
+# fraction or absolute size of the filesystems space that should be free
+FREE_LIMIT="0.2"
+
+
+# users and groups allowed to work with config
+ALLOW_USERS=""
+ALLOW_GROUPS=""
+
+# sync users and groups from ALLOW_USERS and ALLOW_GROUPS to .snapshots
+# directory
+SYNC_ACL="no"
+
+
+# start comparing pre- and post-snapshot in background after creating
+# post-snapshot
+BACKGROUND_COMPARISON="yes"
+
+
+# run daily number cleanup
+NUMBER_CLEANUP="yes"
+
+# limit for number cleanup
+NUMBER_MIN_AGE="1800"
+NUMBER_LIMIT="50"
+NUMBER_LIMIT_IMPORTANT="10"
+
+
+# create hourly snapshots
+TIMELINE_CREATE="yes"
+
+# cleanup hourly snapshots after some time
+TIMELINE_CLEANUP="yes"
+
+# limits for timeline cleanup
+TIMELINE_MIN_AGE="1800"
+TIMELINE_LIMIT_HOURLY="10"
+TIMELINE_LIMIT_DAILY="10"
+TIMELINE_LIMIT_WEEKLY="0"
+TIMELINE_LIMIT_MONTHLY="10"
+TIMELINE_LIMIT_QUARTERLY="1"
+TIMELINE_LIMIT_YEARLY="10"
+
+
+# cleanup empty pre-post-pairs
+EMPTY_PRE_POST_CLEANUP="yes"
+
+# limits for empty pre-post-pair cleanup
+EMPTY_PRE_POST_MIN_AGE="3600"
+

packages/world

@@ -0,0 +1,110 @@
+app-admin/sudo
+app-arch/rar
+app-arch/unrar
+app-arch/zip
+app-backup/snapper
+app-editors/vim
+app-misc/fastfetch
+app-misc/tmux
+app-office/libreoffice-bin
+app-portage/gentoolkit
+app-shells/gentoo-bashcomp
+dev-qt/qtcore
+dev-qt/qttranslations:5
+dev-vcs/git
+kde-apps/ark
+kde-apps/bovo
+kde-apps/dolphin
+kde-apps/dragon
+kde-apps/ffmpegthumbs
+kde-apps/filelight
+kde-apps/granatier
+kde-apps/gwenview
+kde-apps/juk
+kde-apps/k3b
+kde-apps/kamera
+kde-apps/kapman
+kde-apps/kate
+kde-apps/katomic
+kde-apps/kbackup
+kde-apps/kblackbox
+kde-apps/kblocks
+kde-apps/kbounce
+kde-apps/kbreakout
+kde-apps/kdenlive
+kde-apps/kdf
+kde-apps/kdialog
+kde-apps/kdiamond
+kde-apps/keditbookmarks
+kde-apps/kfind
+kde-apps/kfourinline
+kde-apps/kget
+kde-apps/kgoldrunner
+kde-apps/kigo
+kde-apps/killbots
+kde-apps/kiriki
+kde-apps/kjumpingcube
+kde-apps/klickety
+kde-apps/klines
+kde-apps/kmahjongg
+kde-apps/kmines
+kde-apps/knavalbattle
+kde-apps/knetwalk
+kde-apps/knights
+kde-apps/kolf
+kde-apps/kollision
+kde-apps/kolourpaint
+kde-apps/konquest
+kde-apps/konsole
+kde-apps/kpat
+kde-apps/krdc
+kde-apps/kreversi
+kde-apps/krfb
+kde-apps/kshisen
+kde-apps/ksnakeduel
+kde-apps/kspaceduel
+kde-apps/ksquares
+kde-apps/ksudoku
+kde-apps/ksystemlog
+kde-apps/kteatime
+kde-apps/kubrick
+kde-apps/kwalletmanager
+kde-apps/kwave
+kde-apps/kwrite
+kde-apps/lskat
+kde-apps/okular
+kde-apps/palapeli
+kde-apps/picmi
+kde-apps/svgpart
+kde-apps/yakuake
+kde-plasma/discover
+kde-plasma/kscreen
+kde-plasma/plasma-desktop
+kde-plasma/plasma-nm
+kde-plasma/plasma-pa
+kde-plasma/powerdevil
+kde-plasma/spectacle
+kde-plasma/systemsettings
+media-gfx/flameshot
+media-sound/audacity
+media-sound/pavucontrol
+media-video/ffmpeg
+media-video/mpv
+media-video/vlc
+net-fs/cifs-utils
+net-im/discord
+net-im/signal-desktop-bin
+net-vpn/openvpn
+net-vpn/wireguard-tools
+sys-apps/bat
+sys-apps/fd
+sys-apps/firejail
+sys-apps/flatpak
+sys-apps/ripgrep
+sys-fs/btrfs-progs
+sys-process/btop
+sys-process/htop
+www-client/firefox-bin
+x11-drivers/nvidia-drivers
+x11-misc/sddm
+x11-terms/alacritty