diff --git a/.config/nvim/coc.vim b/.config/nvim/coc.vim
index 33694be..89c31f0 100644
--- a/.config/nvim/coc.vim
+++ b/.config/nvim/coc.vim
@@ -2,34 +2,20 @@
 " Use tab for trigger completion with characters ahead and navigate.
 " NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
 " other plugin before putting this into your config.
-inoremap <silent><expr> <TAB>
-      \ pumvisible() ? "\<C-n>" :
-      \ <SID>check_back_space() ? "\<TAB>" :
-      \ coc#refresh()
-inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
 
-function! s:check_back_space() abort
-  let col = col('.') - 1
-  return !col || getline('.')[col - 1]  =~# '\s'
+inoremap <silent><expr> <TAB>
+    \ coc#pum#visible() ? coc#_select_confirm() :
+    \ coc#expandableOrJumpable() ?
+    \ "\<C-r>=coc#rpc#request('doKeymap', ['snippets-expand-jump',''])\<CR>" :
+    \ CheckBackSpace() ? "\<TAB>" :
+    \ coc#refresh()
+
+function! CheckBackSpace() abort
+    let col = col('.') - 1
+    return !col || getline('.')[col - 1]  =~# '\s'
 endfunction
 
-" Use <c-space> to trigger completion.
-if has('nvim')
-  inoremap <silent><expr> <c-space> coc#refresh()
-else
-  inoremap <silent><expr> <c-@> coc#refresh()
-endif
-
-
-" Make <CR> auto-select the first completion item and notify coc.nvim to
-" format on enter, <cr> could be remapped by other vim plugin
-inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
-                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
-
-" Use `[g` and `]g` to navigate diagnostics
-" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
-nmap <silent> [g <Plug>(coc-diagnostic-prev)
-nmap <silent> ]g <Plug>(coc-diagnostic-next)
+let g:coc_snippet_next = '<tab>'
 
 set runtimepath^=/home/xyvs/.vim/plugged/coc.nvim
 filetype plugin indent on
diff --git a/.config/yabai/yabairc b/.config/yabai/yabairc
index 33d6a3c..448f509 100755
--- a/.config/yabai/yabairc
+++ b/.config/yabai/yabairc
@@ -50,6 +50,7 @@ yabai -m config right_padding                10
 yabai -m config window_gap                   20
 
 # floating rules
+yabai -m rule --add app="^System Settings$" manage=off
 yabai -m rule --add app="^System Preferences$" manage=off
 yabai -m rule --add app="^System Information$" manage=off
 yabai -m rule --add app="^Preview$" manage=off
diff --git a/.vim/vimrc b/.vim/vimrc
index 1ae862e..b1d1dbd 100644
--- a/.vim/vimrc
+++ b/.vim/vimrc
@@ -1,14 +1,12 @@
 call plug#begin('~/.vim/plugged')
 
 Plug 'fxn/vim-monochrome'
-Plug 'dylanaraps/wal.vim'
 Plug 'arcticicestudio/nord-vim'
-Plug 'lurst/austere.vim'
 
 " autocomplete
 Plug 'neoclide/coc.nvim', {'branch': 'release'}
-Plug 'github/copilot.vim'
 Plug 'mattn/emmet-vim'
+Plug 'github/copilot.vim'
 
 " other
 Plug 'preservim/nerdcommenter'
@@ -49,7 +47,6 @@ if (empty($TMUX))
 endif
 
 set background=dark
-colorscheme austere
 colorscheme nord
 
 " new leader key
@@ -99,7 +96,7 @@ nnoremap <leader>m :MaximizerToggle<CR>
 let g:user_emmet_leader_key=','
 
 " build commands
-nnoremap <C-b> <Esc>:w<CR>:!clear;python windmill.py /tests/ui/participant/suite_b/test_participant_1028_investment_election_beta.py<CR>
+nnoremap <C-b> <Esc>:w<CR>:!clear;python3 %<CR>
 nnoremap <C-t> <Esc>:w<CR>:!clear;pipenv run pytest -v<CR>
 
 " vim settings
diff --git a/Brewfile b/Brewfile
deleted file mode 100644
index fc39cc8..0000000
--- a/Brewfile
+++ /dev/null
@@ -1,60 +0,0 @@
-tap "clementtsang/bottom"
-tap "homebrew/bundle"
-tap "homebrew/cask"
-tap "homebrew/core"
-tap "homebrew/services"
-tap "jhawthorn/fzy"
-tap "koekeishiya/formulae"
-tap "universal-ctags/universal-ctags"
-brew "openssl@1.1"
-brew "autojump"
-brew "bat"
-brew "emacs"
-brew "cask"
-brew "ccat"
-brew "cmus"
-brew "curl"
-brew "fzf"
-brew "fzy"
-brew "gcc"
-brew "geckodriver"
-brew "git"
-brew "gotop"
-brew "grep"
-brew "httpie"
-brew "libheif"
-brew "imagemagick"
-brew "jq"
-brew "lf"
-brew "libao"
-brew "media-info"
-brew "vapoursynth"
-brew "youtube-dl"
-brew "mpv"
-brew "neofetch"
-brew "neovim"
-brew "node"
-brew "nvm"
-brew "peco"
-brew "percol"
-brew "pipenv"
-brew "postgresql"
-brew "pyenv"
-brew "ranger"
-brew "rust"
-brew "scala"
-brew "screen"
-brew "screenfetch"
-brew "tmux"
-brew "tree"
-brew "vim"
-brew "wget"
-brew "yadm"
-brew "yarn"
-brew "zsh-vi-mode"
-brew "clementtsang/bottom/bottom"
-brew "koekeishiya/formulae/skhd"
-brew "koekeishiya/formulae/yabai"
-brew "universal-ctags/universal-ctags/universal-ctags", args: ["HEAD"]
-cask "chromedriver"
-cask "mpv"