diff --git a/README.md b/README.md
index b192da1..d343663 100644
--- a/README.md
+++ b/README.md
@@ -12,22 +12,28 @@
 - for aerospace window manager, have only 1 workspace/desktop
 - manual settings, refer to [ref/macos-system-settings](ref/macos-system-settings.txt)
 
+--------
+
 ### script run
 - to do the full setup, from git root dir, run: `./box_setup.sh`
 - to copy dotfiles only, from git root dir, run: `./copy_dotfiles.sh`
 
+--------
+
 ### after script run
 - complete manual actions specified in [ref/post-run](ref/post-run.md)
 
-------------------------------------------------------------------------------------------
+--------
 
 ### todo items
-- choose window manager for linux, then configure
-- config for: terminal (ghostty); shell; mpd, mpc, ncmpcpp; mpv
+- config for: terminal (ghostty? foot? havoc?); shell; mpd, mpc, ncmpcpp; mpv
+- hyprland config on linux
 - decide on docker? or alternatives like podman? any license concerns?
 - switch installation approach, use csv file with programs to install, install types,
   any extra flags/opts, comments
     - regarding the system-types idea i'd started to build in already, maybe have a
       column for filtering in the csv file, or just have multiple csv files corresponding
       to a base/core install, a music-studio install, a employer/work machine, etc.
+    - alternate idea: columns for "include_in_systems" and/or "excluded_from_systems"
+        - if both, likely apply the include column first, then the exclude (priority)
 - add command in tmux to perform cd to a given dir in all windows of the current session
diff --git a/installs_and_builds/s02_utils b/installs_and_builds/s02_utils
index 1759856..d22ec7e 100755
--- a/installs_and_builds/s02_utils
+++ b/installs_and_builds/s02_utils
@@ -1,16 +1,18 @@
 #!/bin/zsh
 
-# likely on unix systems already: find xargs grep sed awk
+# likely on unix systems already: find, xargs, awk? (maybe get alternative like nawk?)
 ${=BOX_SETUP_INSTALL_COMMAND} \
     curl \
+    grep \
+    ripgrep \
+    sed \
+    fzf \
     jq \
     parallel \
-    fzf \
     make \
     cmake \
-    gettext \
-    grep \
-    ripgrep
+    gettext
+# TODO: add to above a system info monitor like htop, btop, gotop, or something similar
 
 utils_package_name_pandoc="pandoc"
 case $BOX_SETUP_DISTRO in
diff --git a/make_dirs.sh b/make_dirs.sh
index 1aa1da3..2790119 100755
--- a/make_dirs.sh
+++ b/make_dirs.sh
@@ -23,6 +23,8 @@ source ./src_files/.config/zsh/.zshenv # ensure env vars set for use below
 [[ ! -d "$DIR_DEV" ]] && mkdir -p $DIR_DEV
 [[ ! -d "$DIR_GIT_PROJECTS" ]] && mkdir -p $DIR_GIT_PROJECTS
 [[ ! -d "$DIR_GIT_PROJECTS/me" ]] && mkdir -p $DIR_DEV/git/me
+[[ ! -d "$DIR_GIT_PROJECTS/forks" ]] && mkdir -p $DIR_DEV/git/forks
+[[ ! -d "$DIR_GIT_PROJECTS/learning" ]] && mkdir -p $DIR_DEV/git/learning
 [[ ! -d "$DIR_GIT_PROJECTS/other" ]] && mkdir -p $DIR_DEV/git/other
 
 # directories for music/audio production
diff --git a/src_files/.config/nvim/lua/key_mappings.lua b/src_files/.config/nvim/lua/key_mappings.lua
index 5d7e747..e5881fb 100644
--- a/src_files/.config/nvim/lua/key_mappings.lua
+++ b/src_files/.config/nvim/lua/key_mappings.lua
@@ -7,23 +7,23 @@ local kmgAutocmd = vim.api.nvim_create_autocmd
 -- explore the directory of the current file (using netrw)
 vim.keymap.set("n", "<leader>n", vim.cmd.Ex)
 
--- move selected lines up or down
+-- move visually-selected lines up or down
 vim.keymap.set("v", "J", ":m '>+1<CR>gv")
 vim.keymap.set("v", "K", ":m '<-2<CR>gv")
 
--- vertically center cursor with half-page jumps
-vim.keymap.set("n", "<C-d>", "<C-d>zz")
-vim.keymap.set("n", "<C-u>", "<C-u>zz")
+-- reduce effective distance of half-page jumps and vertically-center the cursor
+vim.keymap.set("n", "<C-d>", "<C-d>4<C-y>M")
+vim.keymap.set("n", "<C-u>", "<C-u>4<C-e>M")
 
 -- open folds when iterating search results
 vim.keymap.set("n", "n", "nzv")
 vim.keymap.set("n", "N", "Nzv")
 
 -- maintain cursor position after paragraph formatting
-vim.keymap.set("n", "=ap", "ma=ap'a")
+vim.keymap.set("n", "=ap", "mF=ap'F")
 
 -- shortcuts for deleting into the void register
-vim.keymap.set({ "n", "v" }, "<leader>d", "\"_d")
+vim.keymap.set({ "n", "v" }, "<leader>d", [["_d]])
 vim.keymap.set("x", "<leader>P", [["_dP]]) -- replace selected text, keep main register
 
 -- shortcuts for using + register (system clipboard)
@@ -52,6 +52,16 @@ vim.keymap.set("n", "<C-h>", [[<C-w>h]])
 vim.keymap.set("n", "<C-j>", [[<C-w>j]])
 vim.keymap.set("n", "<C-k>", [[<C-w>k]])
 vim.keymap.set("n", "<C-l>", [[<C-w>l]])
+kmgAutocmd('FileType', {
+    group = kmGroup,
+    pattern = "netrw",
+    callback = function()
+        vim.keymap.set("n", "<C-h>", [[<C-w>h]], { remap = true, buffer = true })
+        vim.keymap.set("n", "<C-j>", [[<C-w>j]], { remap = true, buffer = true })
+        vim.keymap.set("n", "<C-k>", [[<C-w>k]], { remap = true, buffer = true })
+        vim.keymap.set("n", "<C-l>", [[<C-w>l]], { remap = true, buffer = true })
+    end
+})
 
 ------------------------------------------------------------------------------------------
 -- quickfix TODO: learn about quickfix (:help quickfix), then maybe use these
@@ -71,14 +81,17 @@ vim.keymap.set("n", "<leader>bo", dap.step_over, { desc = "debug: step over" })
 vim.keymap.set("n", "<leader>bu", dap.step_out, { desc = "debug: step out" })
 vim.keymap.set("n", "<leader>blb", dap.list_breakpoints, { desc = "debug: list breakpoints" })
 vim.keymap.set("n", "<leader>bt", dap.toggle_breakpoint, { desc = "debug: toggle breakpoint" })
-vim.keymap.set("n", "<leader>bb", dap.set_breakpoint, { desc = "debug: set breakpoint" })
 
 vim.keymap.set("n", "<leader>bB", function()
     dap.set_breakpoint(vim.fn.input("breakpoint condition: "))
 end, { desc = "debug: set conditional breakpoint" })
 
+vim.keymap.set("n", "<leader>bv", function()
+    require("nvim-dap-virtual-text").toggle()
+end, { desc = "debug: toggle virtual text" })
+
 vim.keymap.set("n", "<leader>bq", function()
-    dap.terminate() require("dapui").close() require("nvim-dap-virtual-text").toggle()
+    dap.terminate() require("dapui").close() require("nvim-dap-virtual-text").disable()
 end, { desc = "debug: quit debugger" })
 
 -- TODO: decide if i want these or others, add if so
@@ -121,8 +134,8 @@ local custom_grep_str_w_regex = function()
 end
 vim.keymap.set('n', '<leader>ft', tscBuiltin.live_grep, { desc = 'tscope find text, live_grep' })
 vim.keymap.set('n', '<leader>fT', custom_grep_str_w_regex, { desc = 'tscope find text, static grep w/regex' })
-vim.keymap.set('n', '<leader>fg', tscBuiltin.git_files, { desc = 'tscope find git-tracked files' })
 vim.keymap.set('n', '<leader>ff', tscBuiltin.find_files, { desc = 'tscope find files' })
+vim.keymap.set('n', '<leader>fg', tscBuiltin.git_files, { desc = 'tscope find git-tracked files' })
 vim.keymap.set('n', '<leader>fb', tscBuiltin.buffers, { desc = 'tscope buffers' })
 vim.keymap.set('n', '<leader>fh', tscBuiltin.help_tags, { desc = 'tscope help tags' })
 
@@ -133,14 +146,18 @@ vim.keymap.set("n", "<leader>ha", function() harpoon:list():add() end)
 vim.keymap.set("n", "<leader>hA", function() harpoon:list():prepend() end)
 vim.keymap.set("n", "<leader>hn", function() harpoon:list():next() end)
 vim.keymap.set("n", "<leader>hp", function() harpoon:list():prev() end)
+
 vim.keymap.set("n", "<leader>hz", function() harpoon:list():select(1) end)
 vim.keymap.set("n", "<leader>hx", function() harpoon:list():select(2) end)
 vim.keymap.set("n", "<leader>hc", function() harpoon:list():select(3) end)
 vim.keymap.set("n", "<leader>hv", function() harpoon:list():select(4) end)
+vim.keymap.set("n", "<leader>hb", function() harpoon:list():select(5) end)
+
 vim.keymap.set("n", "<leader>hZ", function() harpoon:list():replace_at(1) end)
 vim.keymap.set("n", "<leader>hX", function() harpoon:list():replace_at(2) end)
 vim.keymap.set("n", "<leader>hC", function() harpoon:list():replace_at(3) end)
 vim.keymap.set("n", "<leader>hV", function() harpoon:list():replace_at(4) end)
+vim.keymap.set("n", "<leader>hB", function() harpoon:list():replace_at(5) end)
 
 -- undotree
 vim.keymap.set("n", "<leader>u", vim.cmd.UndotreeToggle)
diff --git a/src_files/.config/nvim/lua/plugins_lazy/colorschemes.lua b/src_files/.config/nvim/lua/plugins_lazy/colorschemes.lua
index 2ee9af9..b549cb9 100644
--- a/src_files/.config/nvim/lua/plugins_lazy/colorschemes.lua
+++ b/src_files/.config/nvim/lua/plugins_lazy/colorschemes.lua
@@ -70,4 +70,8 @@ return {
             require('bamboo').load()
         end,
     },
+    {
+        dir = os.getenv('DIR_GIT_PROJECTS') .. "/other/omarchy-pina-theme/pina.nvim",
+        name = "pina",
+    },
 }
diff --git a/src_files/.config/nvim/lua/plugins_lazy/dap.lua b/src_files/.config/nvim/lua/plugins_lazy/dap.lua
index 84fff75..5b70334 100644
--- a/src_files/.config/nvim/lua/plugins_lazy/dap.lua
+++ b/src_files/.config/nvim/lua/plugins_lazy/dap.lua
@@ -119,10 +119,5 @@ return {
         dependencies = {
             "mfussenegger/nvim-dap",
         },
-        -- TODO: disabled by default, keymapping to toggle
-        -- config = function()
-        --     local dap_virtual_text = require("nvim-dap-virtual-text")
-        --     dap_virtual_text.setup()
-        -- end,
     },
 }
diff --git a/src_files/.config/nvim/lua/plugins_lazy/undotree.lua b/src_files/.config/nvim/lua/plugins_lazy/undotree.lua
index 67aef8e..0c0ffee 100644
--- a/src_files/.config/nvim/lua/plugins_lazy/undotree.lua
+++ b/src_files/.config/nvim/lua/plugins_lazy/undotree.lua
@@ -1,3 +1,7 @@
 return {
     "mbbill/undotree",
+    config = function()
+        vim.g.undotree_SplitWidth = 41
+        vim.g.undotree_DiffpanelHeight = 14
+    end,
 }
diff --git a/src_files/.config/zsh/.zshenv b/src_files/.config/zsh/.zshenv
index aa08ba2..ad1c004 100644
--- a/src_files/.config/zsh/.zshenv
+++ b/src_files/.config/zsh/.zshenv
@@ -5,10 +5,10 @@ export TERMINAL='ghostty'
 
 # env vars used for my organization structure
 export DIR_HOME_BOX="$HOME/dbox"
-export DIR_MUSIC="$DIR_HOME_BOX/media/music"
+export DIR_NOTES="$DIR_HOME_BOX/notes"
+export DIR_MUSIC="$DIR_HOME_BOX/music/listen"
 export DIR_DEV="$HOME/dev"
 export DIR_GIT_PROJECTS="$DIR_DEV/git"
-export DIR_NOTES="$DIR_HOME_BOX/notes"
 
 # util dirs; do not change without checking impact on xdg base dirs
 export DIR_LOCAL="$HOME/.local"