Initial code commit

README.md

@@ -0,0 +1,11 @@
+# CachyOS Post-Install Helper
+This is a simple utility meant to address what I personally dislike about the base CachyOS installation.
+
+## Usage
+Begin by installing CachyOS via the standard GUI installer. You may desire to uncheck the installation of `cachyos-zsh-config` and `firefox`. Please use systemd-boot.
+
+As soon as the system is installed and booted, run this utility as root and follow the prompts! That's it.
+
+If using to configure Cosmic DE, I recommend running this utility from a raw TTY without Cosmic running.
+
+A reboot is recommended if applying system tweaks.

applications.go

@@ -0,0 +1,127 @@
+package main
+
+import (
+	"os/exec"
+
+	"github.com/rwinkhart/go-boilerplate/front"
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+func applications() {
+	for {
+		var doAll bool
+		choice := front.InputMenuGen("Application to install:", []string{"back", "all", "pamac-aur (replaces octopi)", "yay-bin (replaces paru)", "htop (replaces btop)", "neovim (replaces vi+vim+nano+micro)", "virt-manager (also installs qemu-desktop+libvirt)", "librewolf-bin", "zed", "steam"})
+		switch choice {
+		case 1:
+			return
+		case 2:
+			doAll = true
+			fallthrough
+		case 3:
+			cmd := exec.Command("pacman", "-S", "pamac-aur", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installation", 1)
+			}
+			cmd = exec.Command("pacman", "-Rcns", "octopi", "--noconfirm")
+			err = cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application removal", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 4:
+			cmd := exec.Command("pacman", "-S", "yay-bin", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installation", 1)
+			}
+			cmd = exec.Command("pacman", "-Rcns", "paru", "--noconfirm")
+			err = cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application removal", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 5:
+			cmd := exec.Command("pacman", "-S", "htop", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installation", 1)
+			}
+			cmd = exec.Command("pacman", "-Rcns", "btop", "--noconfirm")
+			err = cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application removal", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 6:
+			cmd := exec.Command("pacman", "-S", "neovim", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installation", 1)
+			}
+			cmd = exec.Command("pacman", "-Rcns", "vi", "vim", "nano", "micro", "--noconfirm")
+			err = cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application removals", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 7:
+			cmd := exec.Command("pacman", "-S", "virt-manager", "qemu-desktop", "libvirt", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installations", 1)
+			}
+			manageService("enable", "libvirtd.service")
+			manageService("start", "libvirtd.service")
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 8:
+			cmd := exec.Command("pacman", "-S", "librewolf-bin", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installation", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 9:
+			cmd := exec.Command("pacman", "-S", "zed", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installation", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 10:
+			cmd := exec.Command("pacman", "-S", "steam", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application installation", 1)
+			}
+		}
+	}
+}

configurations.go

@@ -0,0 +1,639 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+
+	"github.com/rwinkhart/go-boilerplate/front"
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+func configurations() {
+	for {
+		var doAll bool
+		choice := front.InputMenuGen("Custom config:", []string{"back", "all", "shell profile", "zshrc", "neovim", "zed", "makepkg", "pacman"})
+		switch choice {
+		case 1:
+			return
+		case 2:
+			doAll = true
+			fallthrough
+		case 3:
+			cmd := exec.Command("pacman", "-S", "wayland-protocols", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to install wayland-protocols", 1)
+			}
+			writeFile("/home/"+getUsername()+"/.profile", shellProfile, getUsername(), 0644)
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 4:
+			writeFile("/home/"+getUsername()+"/.zshrc", zshrc, getUsername(), 0644)
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 5:
+			writeFile("/etc/xdg/nvim/sysinit.vim", sysinitVim, "root", 0644)
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 6:
+			err := os.Mkdir("/home/"+getUsername()+"/.config/zed", 0755)
+			if err != nil {
+				other.PrintError("Failed to create zed config directory", 1)
+			}
+			writeFile("/home/"+getUsername()+"/.config/zed/settings.json", zed, getUsername(), 0600)
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 7:
+			writeFile("/etc/makepkg.conf", makepkg, "root", 0644)
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 8:
+			cmd := exec.Command("pacman", "-S", "pacman-contrib", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to install pacman-contrib", 1)
+			}
+			writeFile("/etc/pacman.conf", pacman, "root", 0644)
+			writeFile("/etc/pacman.d/hooks/paccache-clean.hook", pacmanHookClean, "root", 0644)
+			writeFile("/etc/pacman.d/hooks/nvidia.hook", pacmanHookNvidia, "root", 0644)
+		}
+	}
+}
+
+const shellProfile = `#!/bin/sh
+
+# WAYLAND ENV
+export WAYLAND_PROTOCOLS_DATADIR="/usr/share/wayland-protocols"
+export ELECTRON_OZONE_PLATFORM_HINT=auto
+
+# XDG BASE ENV
+export XDG_DATA_HOME="$HOME"/.local/share
+export XDG_CONFIG_HOME="$HOME"/.config
+export XDG_STATE_HOME="$HOME"/.local/state
+export XDG_CACHE_HOME="$HOME"/.cache
+
+# DOTFILE MANAGEMENT
+export CUDA_CACHE_PATH="$XDG_CACHE_HOME"/nv
+export GTK2_RC_FILES="$XDG_CONFIG_HOME"/gtk-2.0/gtkrc
+export LESSHISTFILE="$XDG_CACHE_HOME"/less/history
+export WINEPREFIX="$XDG_DATA_HOME"/wine
+export ANDROID_USER_HOME="$XDG_DATA_HOME"/android
+export _JAVA_OPTIONS=-Djava.util.prefs.userRoot="$XDG_CONFIG_HOME"/java
+export CARGO_HOME="$XDG_DATA_HOME"/cargo
+export RUSTUP_HOME="$XDG_DATA_HOME"/rustup
+
+# GO SETTINGS
+export GOPATH="$XDG_DATA_HOME"/go
+export CGO_ENABLED=1
+export GOFLAGS='-trimpath "-ldflags=-s -w" -buildvcs=false'
+export GOAMD64=v3
+
+# PROTON SETTINGS
+export PROTON_USE_NTSYNC=1
+export PROTON_ENABLE_WAYLAND=1
+#export WAYLANDDRV_PRIMARY_MONITOR=DP-3
+#export FSR4_UPGRADE=1
+
+# MISC SETTINGS
+export EDITOR=nvim
+export BUILDDIR=/tmp/makepkg`
+
+const zshrc = `# Shell settings
+HISTFILE="$XDG_CACHE_HOME"/zsh-histfile
+HISTSIZE=2500
+SAVEHIST=2000
+setopt INC_APPEND_HISTORY
+setopt HIST_EXPIRE_DUPS_FIRST
+setopt HIST_FIND_NO_DUPS
+unsetopt beep
+bindkey -e
+zstyle :compinstall filename "/home/$USER/.zshrc"
+autoload -Uz compinit
+compinit -d "$XDG_CACHE_HOME"/zcompdump
+PS1='%F{yellow}%?%F{cyan}|%n%f@%F{cyan}%m:%f%1~%f%F{cyan}|%#%f '
+source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
+source /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh
+bindkey '^[[H' beginning-of-line
+bindkey '^[[F' end-of-line
+bindkey '^[[3~' delete-char
+
+# Text art on clear/new shell
+art_cat='%F{#fe8019}/\_,_/\
+\ 0 0 /%f'
+art_dog=' %F{#d79921}/___/
+| 6.6 |%f'
+art_bear='%F{#d65d0e}() ()
+(o.o)%f'
+art_snail=' %F{#689d6a}|_/
+/o o\%f'
+art_bunny=' %F{#d5c4a1}/_/
+|^.^|'
+art_jellyfish='%F{#83a598}<===>
+//|\\%f'
+art_school='    %F{#fe8019}<°))><     %F{#fabd2f}><(((.>
+%F{#8ec07c}><(((°>   %F{#d3869b}><((((°>%f'
+art_array=("$art_cat" "$art_dog" "$art_bear" "$art_snail" "$art_bunny" "$art_jellyfish" "$art_school")
+print -Pr "$art_array[$((RANDOM%7+1))]"
+function term_clear() {
+    clear
+    print -Pr "$art_array[$((RANDOM%7+1))]"
+    print -Pn $PS1
+}
+zle -N zsh-redraw term_clear
+bindkey "^L" zsh-redraw
+
+# Stock aliases
+alias ls='ls --color=auto'
+alias grep='grep --color=auto'
+alias fastfetch='fastfetch -c neofetch'
+alias unmv='setopt shwordsplit && lastCmdSplit=(${(@s/ /)$(fc -ln -1)}) && newCmd="mv ${lastCmdSplit[3]} ${lastCmdSplit[2]}" && $newCmd && unsetopt shwordsplit'
+alias orphans='doas pacman -Rcns $(pacman -Qqdt)'
+alias powersave='doas /usr/local/bin/powerset.sh powersave'
+alias performance='doas /usr/local/bin/powerset.sh performance'
+alias schedutil='doas /usr/local/bin/powerset.sh schedutil'
+alias poweroff='doas /usr/bin/poweroff'
+alias reboot='doas /usr/bin/reboot'`
+
+const sysinitVim = `" rwinkhart/cachyos-postinstall-helper 09/28/2025
+
+" ensure correct basic settings
+set fileencoding=utf-8
+
+" show line numbers
+set number
+
+" enable basic spellchecking
+set spell
+
+" set keybinds (home/end, delete w/o copy)
+noremap <C-a> <Home>
+imap <C-a> <Home>
+noremap <C-e> <End>
+imap <C-e> <End>
+nnoremap x "_x
+nnoremap <delete> "_x
+
+" expand all tabs and indents to 4 spaces
+set tabstop=4
+set shiftwidth=4
+set expandtab
+autocmd FileType go,html,php,css set noexpandtab
+
+" set default clipboard register to system clipboard
+set clipboard=unnamedplus
+
+" enable visually indented text wrapping
+set wrap
+set breakindent
+set showbreak=→
+
+" do not auto-break lines unless they are 1000+ characters long
+set textwidth=1000
+
+" do not create automatic backups of any sort
+set nobackup
+set nowritebackup
+
+" default to case insensitive search unless a capital is typed
+set ignorecase
+set smartcase
+
+" tell vim to remember certain things when exited
+"  '10  :  marks will be remembered for up to 10 previously edited files
+"  "100 :  will save up to 100 lines for each register
+"  :20  :  up to 20 lines of command-line history will be remembered
+"  %    :  saves and restores the buffer list
+"  n... :  where to save the viminfo files
+set viminfo='10,\"100,:20,%,n~/.local/share/nviminfo
+
+" restores cursor position in recently opened files
+function! ResCur()
+  if line("'\"") <= line("$")` +
+	"\nnormal! g`" + `"
+    return 1
+  endif
+endfunction
+
+augroup resCur
+  autocmd!
+  autocmd BufWinEnter * call ResCur()
+augroup END`
+
+const zed = `{
+	// rwinkhart/cachyos-postinstall-helper 09/28/2025
+
+    // AI Settings
+    "telemetry": {
+        "metrics": false,
+        "diagnostics": false
+    },
+    "edit_predictions": {
+        "mode": "subtle",
+        "enabled_in_text_threads": false
+    },
+    "show_edit_predictions": true,
+    "agent": {
+        "default_profile": "ask",
+        "default_model": {
+            "provider": "copilot_chat",
+            "model": "claude-sonnet-4"
+        }
+    },
+    "features": {
+        "edit_prediction_provider": "copilot"
+    },
+    // General Settings
+    "minimap": {
+        "show": "always"
+    },
+    "icon_theme": "JetBrains New UI Icons (Dark)",
+    "middle_click_paste": false,
+    "base_keymap": "VSCode",
+    "autosave": "off",
+    "theme": "Gruvbox Dark",
+    "ui_font_size": 14,
+    "buffer_font_size": 18,
+    "auto_update": false,
+    "terminal": {
+        "shell": {
+            "program": "zsh"
+        }
+    },
+    "tab_size": 4,
+    "preferred_line_length": 120,
+    "git": {
+        "inline_blame": {
+            "enabled": false
+        }
+    },
+    // Language-specific Settings
+    "languages": {
+        "Python": {
+            "soft_wrap": "preferred_line_length"
+        },
+        "Go": {
+            "hard_tabs": true
+        },
+        "JavaScript": {
+            "format_on_save": "off"
+        },
+        "CSS": {
+            "format_on_save": "off"
+        }
+    },
+    // De-clutter UI
+    "tab_bar": {
+        "show_nav_history_buttons": false
+    },
+    "search": {
+        "button": false
+    },
+    "title_bar": {
+        "show_branch_name": false
+    },
+    "notification_panel": {
+        "button": false
+    },
+    "collaboration_panel": {
+        "button": false
+    },
+    "git_panel": {
+        "button": false
+    }
+}`
+
+const makepkg = `#!/hint/bash
+#
+# /etc/makepkg.conf - rwinkhart/cachyos-postinstall-helper 09/28/2025
+#
+
+#########################################################################
+# SOURCE ACQUISITION
+#########################################################################
+#
+#-- The download utilities that makepkg should use to acquire sources
+#  Format: 'protocol::agent'
+DLAGENTS=('file::/usr/bin/curl -qgC - -o %o %u'
+          'ftp::/usr/bin/curl -qgfC - --ftp-pasv --retry 3 --retry-delay 3 -o %o %u'
+          'http::/usr/bin/curl -qgb "" -fLC - --retry 3 --retry-delay 3 -o %o %u'
+          'https::/usr/bin/curl -qgb "" -fLC - --retry 3 --retry-delay 3 -o %o %u'
+          'rsync::/usr/bin/rsync --no-motd -z %u %o'
+          'scp::/usr/bin/scp -C %u %o')
+
+# Other common tools:
+# /usr/bin/snarf
+# /usr/bin/lftpget -c
+# /usr/bin/wget
+
+#-- The package required by makepkg to download VCS sources
+#  Format: 'protocol::package'
+VCSCLIENTS=('bzr::breezy'
+            'fossil::fossil'
+            'git::git'
+            'hg::mercurial'
+            'svn::subversion')
+
+#########################################################################
+# ARCHITECTURE, COMPILE FLAGS
+#########################################################################
+#
+CARCH="x86_64"
+CHOST="x86_64-pc-linux-gnu"
+
+#-- Compiler and Linker Flags
+#CPPFLAGS=""
+CFLAGS="-march=native -mtune=native -O3 -pipe -fno-plt -fexceptions \
+        -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security \
+        -fstack-clash-protection -fcf-protection \
+        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer"
+CXXFLAGS="$CFLAGS -Wp,-D_GLIBCXX_ASSERTIONS"
+LDFLAGS="-Wl,-O3 -Wl,--sort-common -Wl,--as-needed -Wl,-z,relro -Wl,-z,now \
+         -Wl,-z,pack-relative-relocs"
+LTOFLAGS="-flto=auto"
+#-- Make Flags: change this for DistCC/SMP systems
+MAKEFLAGS="-j$(nproc)"
+NINJAFLAGS="-j$(nproc)"
+#-- Debugging flags
+DEBUG_CFLAGS="-g"
+DEBUG_CXXFLAGS="$DEBUG_CFLAGS"
+
+#########################################################################
+# BUILD ENVIRONMENT
+#########################################################################
+#
+# Makepkg defaults: BUILDENV=(!distcc !color !ccache check !sign)
+#  A negated environment option will do the opposite of the comments below.
+#
+#-- distcc:   Use the Distributed C/C++/ObjC compiler
+#-- color:    Colorize output messages
+#-- ccache:   Use ccache to cache compilation
+#-- check:    Run the check() function if present in the PKGBUILD
+#-- sign:     Generate PGP signature file
+#
+BUILDENV=(!distcc color !ccache check !sign)
+#
+#-- If using DistCC, your MAKEFLAGS will also need modification. In addition,
+#-- specify a space-delimited list of hosts running in the DistCC cluster.
+#DISTCC_HOSTS=""
+#
+#-- Specify a directory for package building.
+#BUILDDIR=/tmp/makepkg
+
+#########################################################################
+# GLOBAL PACKAGE OPTIONS
+#   These are default values for the options=() settings
+#########################################################################
+#
+# Makepkg defaults: OPTIONS=(!strip docs libtool staticlibs emptydirs !zipman !purge !debug !lto !autodeps)
+#  A negated option will do the opposite of the comments below.
+#
+#-- strip:      Strip symbols from binaries/libraries
+#-- docs:       Save doc directories specified by DOC_DIRS
+#-- libtool:    Leave libtool (.la) files in packages
+#-- staticlibs: Leave static library (.a) files in packages
+#-- emptydirs:  Leave empty directories in packages
+#-- zipman:     Compress manual (man and info) pages in MAN_DIRS with gzip
+#-- purge:      Remove files specified by PURGE_TARGETS
+#-- debug:      Add debugging flags as specified in DEBUG_* variables
+#-- lto:        Add compile flags for building with link time optimization
+#-- autodeps:   Automatically add depends/provides
+#
+OPTIONS=(strip docs !libtool !staticlibs emptydirs zipman purge !debug lto)
+
+#-- File integrity checks to use. Valid: md5, sha1, sha224, sha256, sha384, sha512, b2
+INTEGRITY_CHECK=(sha256)
+#-- Options to be used when stripping binaries. See "man strip" for details.
+STRIP_BINARIES="--strip-all"
+#-- Options to be used when stripping shared libraries. See "man strip" for details.
+STRIP_SHARED="--strip-unneeded"
+#-- Options to be used when stripping static libraries. See "man strip" for details.
+STRIP_STATIC="--strip-debug"
+#-- Manual (man and info) directories to compress (if zipman is specified)
+MAN_DIRS=({usr{,/local}{,/share},opt/*}/{man,info})
+#-- Doc directories to remove (if !docs is specified)
+DOC_DIRS=(usr/{,local/}{,share/}{doc,gtk-doc} opt/*/{doc,gtk-doc})
+#-- Files to be removed from all packages (if purge is specified)
+PURGE_TARGETS=(usr/{,share}/info/dir .packlist *.pod)
+#-- Directory to store source code in for debug packages
+DBGSRCDIR="/usr/src/debug"
+#-- Prefix and directories for library autodeps
+LIB_DIRS=('lib:usr/lib' 'lib32:usr/lib32')
+
+#########################################################################
+# PACKAGE OUTPUT
+#########################################################################
+#
+# Default: put built package and cached source in build directory
+#
+#-- Destination: specify a fixed directory where all packages will be placed
+#PKGDEST=/home/packages
+#-- Source cache: specify a fixed directory where source files will be cached
+#SRCDEST=/home/sources
+#-- Source packages: specify a fixed directory where all src packages will be placed
+#SRCPKGDEST=/home/srcpackages
+#-- Log files: specify a fixed directory where all log files will be placed
+#LOGDEST=/home/makepkglogs
+#-- Packager: name/email of the person or organization building packages
+#PACKAGER="John Doe <john@doe.com>"
+#-- Specify a key to use for package signing
+#GPGKEY=""
+
+#########################################################################
+# COMPRESSION DEFAULTS
+#########################################################################
+#
+COMPRESSGZ=(gzip -c -f -n)
+COMPRESSBZ2=(bzip2 -c -f)
+COMPRESSXZ=(xz -c -z -e6 --threads=0 -)
+COMPRESSZST=(zstd -c -z -q --threads=0 -)
+COMPRESSLRZ=(lrzip -q)
+COMPRESSLZO=(lzop -q)
+COMPRESSZ=(compress -c -f)
+COMPRESSLZ4=(lz4 -q)
+COMPRESSLZ=(lzip -c -f)
+
+#########################################################################
+# EXTENSION DEFAULTS
+#########################################################################
+#
+PKGEXT='.pkg.tar.xz'
+SRCEXT='.src.tar.gz'
+
+#########################################################################
+# OTHER
+#########################################################################
+#
+#-- Command used to run pacman as root, instead of trying sudo and su
+PACMAN_AUTH=(doas)`
+
+const makepkgRS = `#!/hint/bash
+#
+# /etc/makepkg.conf.d/rust.conf - rwinkhart/cachyos-postinstall-helper 09/28/2025
+#
+
+#########################################################################
+# RUST LANGUAGE SUPPORT
+#########################################################################
+
+# Flags used for the Rust compiler, similar in spirit to CFLAGS. Read
+# linkman:rustc[1] for more details on the available flags.
+RUSTFLAGS="-Cforce-frame-pointers=yes -C opt-level=3 -C target-cpu=native"
+
+# Additional compiler flags appended to "RUSTFLAGS" for use in debugging.
+# Read linkman:rustc[1] for more details on the available flags.
+DEBUG_RUSTFLAGS="-C debuginfo=2"`
+
+const pacman = `# /etc/pacman.conf - rwinkhart/cachyos-postinstall-helper 09/28/2025
+
+# See the pacman.conf(5) manpage for option and repository directives
+
+# GENERAL OPTIONS
+[options]
+# The following paths are commented out with their default values listed.
+# If you wish to use different paths, uncomment and update the paths.
+#RootDir     = /
+#DBPath      = /var/lib/pacman/
+#CacheDir    = /var/cache/pacman/pkg/
+#LogFile     = /var/log/pacman.log
+#GPGDir      = /etc/pacman.d/gnupg/
+#HookDir     = /etc/pacman.d/hooks/
+HoldPkg     = pacman glibc
+#XferCommand = /usr/bin/curl -L -C - -f -o %o %u
+#XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
+#CleanMethod = KeepInstalled
+#UseDelta    = 0.7
+Architecture = auto
+
+# Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
+#IgnorePkg   =
+#IgnoreGroup =
+
+#NoUpgrade   =
+#NoExtract   =
+
+# Misc options
+#UseSyslog
+Color
+ILoveCandy
+#NoProgressBar
+CheckSpace
+#VerbosePkgLists
+DisableDownloadTimeout
+ParallelDownloads = 10
+DownloadUser = alpm
+#DisableSandbox
+
+# By default, pacman accepts packages signed by keys that its local keyring
+# trusts (see pacman-key and its man page), as well as unsigned packages.
+SigLevel    = Required DatabaseOptional
+LocalFileSigLevel = Optional
+#RemoteFileSigLevel = Required
+
+# NOTE: You must run "pacman-key --init" before first using pacman; the local
+# keyring can then be populated with the keys of all official Arch Linux
+# packagers with "pacman-key --populate archlinux".
+
+#
+# REPOSITORIES
+#   - can be defined here or included from another file
+#   - pacman will search repositories in the order defined here
+#   - local/custom mirrors can be added here or in separate files
+#   - repositories listed first will take precedence when packages
+#     have identical names, regardless of version number
+#   - URLs will have $repo replaced by the name of the current repo
+#   - URLs will have $arch replaced by the name of the architecture
+#
+# Repository entries are of the format:
+#       [repo-name]
+#       Server = ServerName
+#       Include = IncludePath
+#
+# The header [repo-name] is crucial - it must be present and
+# uncommented to enable the repo.
+#
+
+# cachyos repos
+[cachyos-v3]
+Include = /etc/pacman.d/cachyos-v3-mirrorlist
+
+[cachyos-core-v3]
+Include = /etc/pacman.d/cachyos-v3-mirrorlist
+
+[cachyos-extra-v3]
+Include = /etc/pacman.d/cachyos-v3-mirrorlist
+
+[cachyos]
+Include = /etc/pacman.d/cachyos-mirrorlist
+
+# The testing repositories are disabled by default. To enable, uncomment the
+# repo name header and Include lines. You can add preferred servers immediately
+# after the header, and they will be used before the default mirrors.
+
+#[core-testing]
+#Include = /etc/pacman.d/mirrorlist
+
+[core]
+Include = /etc/pacman.d/mirrorlist
+
+#[extra-testing]
+#Include = /etc/pacman.d/mirrorlist
+
+[extra]
+Include = /etc/pacman.d/mirrorlist
+
+# If you want to run 32 bit applications on your x86_64 system,
+# enable the multilib repositories as required here.
+
+#[multilib-testing]
+#Include = /etc/pacman.d/mirrorlist
+
+[multilib]
+Include = /etc/pacman.d/mirrorlist
+
+# An example of a custom package repository.  See the pacman manpage for
+# tips on creating your own repositories.
+#[custom]
+#SigLevel = Optional TrustAll
+#Server = file:///home/custompkgs`
+
+const pacmanHookClean = `[Trigger]
+Operation = Remove
+Operation = Install
+Operation = Upgrade
+Type = Package
+Target = *
+
+[Action]
+Description = Keep the last cache and the currently installed.
+When = PostTransaction
+Exec = /usr/bin/paccache -rvk2`
+
+const pacmanHookNvidia = `[Trigger]
+Operation=Install
+Operation=Upgrade
+Operation=Remove
+Type=Package
+Target=nvidia-open
+Target=linux-cachyos
+
+[Action]
+Description=Update Nvidia module in initcpio
+Depends=mkinitcpio
+When=PostTransaction
+NeedsTargets
+Exec=/bin/sh -c 'while read -r trg; do case $trg in linux) exit 0; esac; done; /usr/bin/mkinitcpio -P'`

cosmic.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"os/exec"
+
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+func cosmic() {
+	version := "/v1/"
+	filenamesToValues := map[string]string{
+		"AppList" + version + "enable_drag_source":  "true",
+		"AppList" + version + "favorites":           "[\n    com.system76.CosmicFiles\n]",
+		"Comp" + version + "autotile_behavior":      "PerWorkspace",
+		"Comp" + version + "cursor_follows_focus":   "false",
+		"Comp" + version + "focus_follows_cursor":   "true",
+		"Comp" + version + "input_default":          "(\n    state: Enabled,\n    acceleration: Some((\n        profile: Some(Flat),\n        speed: 0.0,\n    )),\n)",
+		"Comp" + version + "workspaces":             "(\n    workspace_mode: Global,\n    workspace_layout: Vertical,\n)",
+		"Panel" + version + "entries":               "[\n    \"Panel\",\n]",
+		"Panel.Panel" + version + "anchor_gap":      "true",
+		"Panel.Panel" + version + "border_radius":   "10",
+		"Panel.Panel" + version + "exclusive_zone":  "true",
+		"Panel.Panel" + version + "expand_to_edges": "false",
+		"Panel.Panel" + version + "opacity":         "0.75",
+		"Panel.Panel" + version + "plugins_center":  "Some([])",
+		"Panel.Panel" + version + "plugins_wings":   "Some(([\n    \"com.system76.CosmicAppList\",\n], [\n    \"com.system76.CosmicAppletStatusArea\",\n    \"com.system76.CosmicAppletTiling\",\n    \"com.system76.CosmicAppletAudio\",\n    \"com.system76.CosmicAppletBluetooth\",\n    \"com.system76.CosmicAppletNetwork\",\n    \"com.system76.CosmicAppletBattery\",\n    \"com.system76.CosmicAppletNotifications\",\n    \"com.system76.CosmicAppletPower\",\n    \"com.system76.CosmicAppletTime\",\n]))",
+		"Panel.Panel" + version + "size":            "XS",
+		"Tk" + version + "show_maximize":            "false"}
+
+	for key, value := range filenamesToValues {
+		filePath := "/home/" + getUsername() + "/.config/" + key
+		writeFile(filePath, value, getUsername(), 0755)
+	}
+
+	// Replace SDDM with cosmic-greeter
+	writeFile("/etc/greetd/config.toml", "[terminal]\nvt = 1\n\n[default_session]\ncommand = \"cosmic-comp /bin/cosmic-greeter\"\nuser = \"cosmic-greeter\"", "root", 0644)
+	manageService("stop", "sddm.service")
+	manageService("disable", "sddm.service")
+	manageService("enable", "greetd.service")
+	cmd := exec.Command("pacman", "-Rcns", "sddm", "--noconfirm")
+	err := cmd.Run()
+	if err != nil {
+		other.PrintError("Failed to remove SDDM", 1)
+	}
+}

go.mod

@@ -0,0 +1,10 @@
+module cachy-post
+
+go 1.25.1
+
+require github.com/rwinkhart/go-boilerplate v0.1.0
+
+require (
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/term v0.32.0 // indirect
+)

go.sum

@@ -0,0 +1,6 @@
+github.com/rwinkhart/go-boilerplate v0.1.0 h1:EzlVj6R7Bxtl79Nl7R5zRcg6s+Cf2FAqGIzR4giWTQg=
+github.com/rwinkhart/go-boilerplate v0.1.0/go.mod h1:cnzIF45I0FCOvE4YIB+26pLCUx2kWyY2llKYZruNaRY=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/term v0.32.0 h1:DR4lr0TjUs3epypdhTOkMmuF5CDFJ/8pOnbzMZPQ7bg=
+golang.org/x/term v0.32.0/go.mod h1:uZG1FhGx848Sqfsq4/DlJr3xGGsYMu/L5GW4abiaEPQ=

main.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"os/user"
+
+	"github.com/rwinkhart/go-boilerplate/front"
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+var username string
+
+// TODO add mode to perform EVERYTHING
+func main() {
+	userInfo, err := user.Current()
+	if err != nil {
+		other.PrintError("Failed to get current user", 1)
+	}
+	if userInfo.Uid != "0" {
+		other.PrintError("This utility must be run as root", 1)
+	}
+
+	for {
+		choice := front.InputMenuGen("Option:", []string{"universal tweaks", "system tweaks", "removals", "applications", "configuration", "cosmic"})
+		switch choice {
+		case 1:
+			universalTweaks()
+		case 2:
+			system()
+		case 3:
+			removals()
+			// TODO remove config/data
+		case 4:
+			applications()
+			// TODO remove config/data for replacements
+		case 5:
+			configurations()
+		case 6:
+			cosmic()
+			// TODO keyboard shortcuts for screenshot/sticky window/terminal
+			// TODO window decoration position (not yet implemented?)
+			// TODO link CachyOS wallpapers?
+		}
+	}
+}

removals.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"os/exec"
+
+	"github.com/rwinkhart/go-boilerplate/front"
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+func removals() {
+	for {
+		var doAll bool
+		choice := front.InputMenuGen("Application to remove:", []string{"back", "all", "alacritty", "pavucontrol", "bash", "linux-cachyos-lts", "ufw", "modemmanager"})
+		var target string
+		switch choice {
+		case 1:
+			return
+		case 2:
+			cmd := exec.Command("pacman", "-Rcns", "back", "alacritty", "pavucontrol", "bash", "linux-cachyos-lts", "ufw", "modemmanager", "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to perform application removals", 1)
+			}
+			doAll = true
+		case 3:
+			target = "alacritty"
+		case 4:
+			target = "pavucontrol"
+		case 5:
+			target = "bash"
+		case 6:
+			target = "linux-cachyos-lts"
+		case 7:
+			target = "ufw"
+			manageService("stop", "ufw.service")
+			manageService("disable", "ufw.service")
+		case 8:
+			target = "modemmanager"
+		}
+		if !doAll {
+			cmd := exec.Command("pacman", "-Rcns", target, "--noconfirm")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to remove "+target, 1)
+			}
+		}
+	}
+}

system.go

@@ -0,0 +1,158 @@
+package main
+
+import (
+	"bufio"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/rwinkhart/go-boilerplate/front"
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+func system() {
+	for {
+		var doAll bool
+		choice := front.InputMenuGen("Tweak:", []string{"back", "all", "replace sudo with doas", "enable ipv6 privacy extensions", "enable ext4 fast_commit", "enable SysRq reboots", "disable kernel security mitigations", "unlock amdgpu tuning", "enable amd_pstate in passive mode (recommended for zenver2)"})
+		switch choice {
+		case 1:
+			return
+		case 2:
+			doAll = true
+			fallthrough
+		case 3:
+			writeFile("/etc/doas.conf", "permit persist keepenv :wheel as root", "root", 0644)
+			writeFile("/tmp/PKGBUILD", `# Maintainer: Arch Linux Team
+# Contributor: Levente Polyak <anthraxx[at]archlinux[dot]org>
+
+pkgname=base-devel
+pkgver=1
+pkgrel=2
+pkgdesc='Basic tools to build Arch Linux packages'
+url='https://www.archlinux.org'
+arch=('any')
+license=('GPL')
+options=('!debug')
+depends=(
+  archlinux-keyring
+  autoconf
+  automake
+  binutils
+  bison
+  debugedit
+  fakeroot
+  file
+  findutils
+  flex
+  gawk
+  gcc
+  gettext
+  grep
+  groff
+  gzip
+  libtool
+  m4
+  make
+  pacman
+  pacman-contrib
+  patch
+  pkgconf
+  sed
+  opendoas
+  texinfo
+  which
+)
+
+# vim: ts=2 sw=2 et:
+`, "nobody", 0777)
+			cmd := exec.Command("sudo", "-u", "nobody", "makepkg", "-si", "--dir", "/tmp")
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to build+install custom base-devel", 1)
+			}
+			cmd = exec.Command("pacman", "-S", "opendoas", "--noconfirm")
+			err = cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to install opendoas", 1)
+			}
+			cmd = exec.Command("pacman", "-R", "sudo", "--noconfirm")
+			err = cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to remove sudo", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 4:
+			nics, err := os.ReadDir("/sys/class/net")
+			if err != nil {
+				other.PrintError("Failed to retrieve NICs", 1)
+			}
+			var sysctlConf strings.Builder
+			sysctlConf.WriteString("net.ipv6.conf.all.use_tempaddr = 2\nnet.ipv6.conf.default.use_tempaddr = 2")
+			for _, nic := range nics {
+				sysctlConf.WriteString("\nnet.ipv6.conf." + nic.Name() + "use_tempaddr = 2")
+			}
+			writeFile("/etc/sysctl.d/40-ipv6-priv-ext.conf", sysctlConf.String(), "root", 0644)
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 5:
+			cmd := exec.Command("tune2fs", "-O", "fast_commit", front.Input("/dev/driveparition:"))
+			err := cmd.Run()
+			if err != nil {
+				other.PrintError("Failed to enable fast_commit", 1)
+			}
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 6:
+			writeFile("/etc/sysctl.d/35-sysrq.conf", "kernel.sysrq = 244", "root", 0644)
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 7:
+			addKernelParams([]string{"mitigations=off"})
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 8:
+			addKernelParams([]string{"amdgpu.ppfeaturemask=0xffffffff"})
+
+			if !doAll {
+				break
+			}
+			fallthrough
+		case 9:
+			addKernelParams([]string{"amd_pstate=passive"})
+		}
+	}
+}
+
+func addKernelParams(newParameters []string) {
+	f, err := os.Open("/boot/loader/entries/linux-cachyos.conf")
+	if err != nil {
+		other.PrintError("Failed to open systemd-boot entry", 1)
+	}
+	fScanner := bufio.NewScanner(f)
+	fScanner.Split(bufio.ScanLines)
+	var parameters []string
+	for i := 0; fScanner.Scan(); i++ {
+		if i == 1 {
+			parameters = strings.Split(fScanner.Text(), " ")[2:]
+			break
+		}
+	}
+	parameters = append(parameters, newParameters...)
+	writeFile("/boot/loader/entries/linux-cachyos.conf", "title Linux Cachyos\noptions root=UUID=e2ff600b-0202-4620-bed3-54d7a58414f8 "+strings.Join(parameters, " ")+"\nlinux /vmlinuz-linux-cachyos\ninitrd /initramfs-linux-cachyos.img", "root", 0700)
+}

universalTweaks.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+func universalTweaks() {
+	// Lock root account
+	cmd := exec.Command("usermod", "--delete", "root")
+	cmd.Run()
+	cmd = exec.Command("usermod", "--lock", "root")
+	cmd.Run()
+
+	// Add user to uucp group for non-root serial console usage
+	cmd = exec.Command("usermod", "-aG", "uucp", getUsername())
+	cmd.Run()
+
+	// Force disable kernel watchdog (kernel parameters should do this as well)
+	f, err := os.Create("/etc/modprobe.d/blacklist.conf")
+	if err != nil {
+		other.PrintError("Failed to create /etc/modprobe.d/blacklist.conf", 1)
+	}
+	f.WriteString("#Disable kernel watchdog\nblacklist iTCO_wdt")
+	f.Close()
+}

utilities.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+	"os/user"
+	"strconv"
+
+	"github.com/rwinkhart/go-boilerplate/front"
+	"github.com/rwinkhart/go-boilerplate/other"
+)
+
+func manageService(action, service string) {
+	cmd := exec.Command("systemctl", "daemon-reload")
+	err := cmd.Run()
+	if err != nil {
+		other.PrintError("Failed to perform daemon-reload", 1)
+	}
+	cmd = exec.Command("systemctl", action, service)
+	err = cmd.Run()
+	if err != nil {
+		other.PrintError("Failed to "+action+" "+service, 1)
+	}
+}
+
+func writeFile(path, data, owner string, perms os.FileMode) {
+	err := os.WriteFile(path, []byte(data), perms)
+	if err != nil {
+		other.PrintError("Failed to write to "+path, 1)
+	}
+	if owner != "root" {
+		userInfo, err := user.Lookup(owner)
+		if err != nil {
+			other.PrintError("Failed to lookup UID for "+owner, 1)
+		}
+		uid, err := strconv.Atoi(userInfo.Uid)
+		if err != nil {
+			other.PrintError("Failed to convert UID to integer", 1)
+		}
+		err = os.Chown(path, uid, uid)
+		if err != nil {
+			other.PrintError("Failed to set ownership of "+path, 1)
+		}
+	}
+}
+
+func getUsername() string {
+	if username == "" {
+		username = front.Input("Non-root username:")
+	}
+	localUsername := username
+	return localUsername
+}