reorganization and updates

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diff --git a/basics/.config/kitty/kitty.conf b/basics/.config/kitty/kitty.conf
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+# vim:fileencoding=utf-8:ft=conf:foldmethod=marker
+
+#: Fonts {{{
+
+#: kitty has very powerful font management. You can configure
+#: individual font faces and even specify special fonts for particular
+#: characters.
+
+
+font_family      Fira Code
+bold_font        auto
+italic_font      auto
+bold_italic_font auto
+
+#bold_font        Source Code Pro:Bold
+#italic_font      Source Code Pro:Italic
+#bold_italic_font Source Code Pro:Italic:Bold
+
+#: You can specify different fonts for the bold/italic/bold-italic
+#: variants. By default they are derived automatically, by the OSes
+#: font system. Setting them manually is useful for font families that
+#: have many weight variants like Book, Medium, Thick, etc. For
+#: example::
+
+#:     font_family      Operator Mono Book
+#:     bold_font        Operator Mono Medium
+#:     italic_font      Operator Mono Book Italic
+#:     bold_italic_font Operator Mono Medium Italic
+
+font_size 15.0
+
+#: Font size (in pts)
+
+adjust_line_height  0
+adjust_column_width 0
+
+#: Change the size of each character cell kitty renders. You can use
+#: either numbers, which are interpreted as pixels or percentages
+#: (number followed by %), which are interpreted as percentages of the
+#: unmodified values. You can use negative pixels or percentages less
+#: than 100% to reduce sizes (but this might cause rendering
+#: artifacts).
+
+# symbol_map U+E0A0-U+E0A2,U+E0B0-U+E0B3 PowerlineSymbols
+
+#: Map the specified unicode codepoints to a particular font. Useful
+#: if you need special rendering for some symbols, such as for
+#: Powerline. Avoids the need for patched fonts. Each unicode code
+#: point is specified in the form U+<code point in hexadecimal>. You
+#: can specify multiple code points, separated by commas and ranges
+#: separated by hyphens. symbol_map itself can be specified multiple
+#: times. Syntax is::
+
+#:     symbol_map codepoints Font Family Name
+
+box_drawing_scale 0.001, 1, 1.5, 2
+
+#: Change the sizes of the lines used for the box drawing unicode
+#: characters These values are in pts. They will be scaled by the
+#: monitor DPI to arrive at a pixel value. There must be four values
+#: corresponding to thin, normal, thick, and very thick lines.
+
+#: }}}
+
+#: Cursor customization {{{
+
+cursor #586e75
+
+#: Default cursor color
+
+cursor_shape block
+
+#: The cursor shape can be one of (block, beam, underline)
+
+cursor_blink_interval      0.5
+cursor_stop_blinking_after 15.0
+
+#: The interval (in seconds) at which to blink the cursor. Set to zero
+#: to disable blinking. Note that numbers smaller than repaint_delay
+#: will be limited to repaint_delay. Stop blinking cursor after the
+#: specified number of seconds of keyboard inactivity. Set to zero to
+#: never stop blinking.
+
+#: }}}
+
+#: Scrollback {{{
+
+scrollback_lines 5000
+
+#: Number of lines of history to keep in memory for scrolling back.
+#: Memory is allocated on demand.
+
+scrollback_pager less --chop-long-lines --RAW-CONTROL-CHARS +INPUT_LINE_NUMBER
+
+#: Program with which to view scrollback in a new window. The
+#: scrollback buffer is passed as STDIN to this program. If you change
+#: it, make sure the program you use can handle ANSI escape sequences
+#: for colors and text formatting. INPUT_LINE_NUMBER in the command
+#: line above will be replaced by an integer representing which line
+#: should be at the top of the screen.
+
+wheel_scroll_multiplier 5.0
+
+#: Modify the amount scrolled by the mouse wheel or touchpad. Use
+#: negative numbers to change scroll direction.
+
+#: }}}
+
+#: Mouse {{{
+
+url_color #0087BD
+url_style curly
+
+#: The color and style for highlighting URLs on mouse-over. url_style
+#: can be one of: none, single, double, curly
+
+open_url_modifiers kitty_mod
+
+#: The modifier keys to press when clicking with the mouse on URLs to
+#: open the URL
+
+open_url_with default
+
+#: The program with which to open URLs that are clicked on. The
+#: special value default means to use the operating system's default
+#: URL handler.
+
+copy_on_select no
+
+#: Copy to clipboard on select. With this enabled, simply selecting
+#: text with the mouse will cause the text to be copied to clipboard.
+#: Useful on platforms such as macOS/Wayland that do not have the
+#: concept of primary selections. Note that this is a security risk,
+#: as all programs, including websites open in your browser can read
+#: the contents of the clipboard.
+
+rectangle_select_modifiers ctrl+alt
+
+#: The modifiers to use rectangular selection (i.e. to select text in
+#: a rectangular block with the mouse)
+
+select_by_word_characters :@-./_~?&=%+#
+
+#: Characters considered part of a word when double clicking. In
+#: addition to these characters any character that is marked as an
+#: alpha-numeric character in the unicode database will be matched.
+
+click_interval 0.5
+
+#: The interval between successive clicks to detect double/triple
+#: clicks (in seconds)
+
+mouse_hide_wait 3.0
+
+#: Hide mouse cursor after the specified number of seconds of the
+#: mouse not being used. Set to zero to disable mouse cursor hiding.
+
+focus_follows_mouse no
+
+#: Set the active window to the window under the mouse when moving the
+#: mouse around
+
+#: }}}
+
+#: Performance tuning {{{
+
+repaint_delay 10
+
+#: Delay (in milliseconds) between screen updates. Decreasing it,
+#: increases frames-per-second (FPS) at the cost of more CPU usage.
+#: The default value yields ~100 FPS which is more than sufficient for
+#: most uses. Note that to actually achieve 100 FPS you have to either
+#: set sync_to_monitor to no or use a monitor with a high refresh
+#: rate.
+
+input_delay 3
+
+#: Delay (in milliseconds) before input from the program running in
+#: the terminal is processed. Note that decreasing it will increase
+#: responsiveness, but also increase CPU usage and might cause flicker
+#: in full screen programs that redraw the entire screen on each loop,
+#: because kitty is so fast that partial screen updates will be drawn.
+
+sync_to_monitor yes
+
+#: Sync screen updates to the refresh rate of the monitor. This
+#: prevents tearing (https://en.wikipedia.org/wiki/Screen_tearing)
+#: when scrolling. However, it limits the rendering speed to the
+#: refresh rate of your monitor. With a very high speed mouse/high
+#: keyboard repeat rate, you may notice some slight input latency. If
+#: so, set this to no.
+
+#: }}}
+
+#: Terminal bell {{{
+
+enable_audio_bell yes
+
+#: Enable/disable the audio bell. Useful in environments that require
+#: silence.
+
+visual_bell_duration 0.0
+
+#: Visual bell duration. Flash the screen when a bell occurs for the
+#: specified number of seconds. Set to zero to disable.
+
+window_alert_on_bell yes
+
+#: Request window attention on bell. Makes the dock icon bounce on
+#: macOS or the taskbar flash on linux.
+
+bell_on_tab yes
+
+#: Show a bell symbol on the tab if a bell occurs in one of the
+#: windows in the tab and the window is not the currently focused
+#: window
+
+#: }}}
+
+#: Window layout {{{
+
+remember_window_size  yes
+initial_window_width  640
+initial_window_height 400
+
+#: If enabled, the window size will be remembered so that new
+#: instances of kitty will have the same size as the previous
+#: instance. If disabled, the window will initially have size
+#: configured by initial_window_width/height, in pixels. You can use a
+#: suffix of "c" on the width/height values to have them interpreted
+#: as number of cells instead of pixels.
+
+enabled_layouts *
+
+#: The enabled window layouts. A comma separated list of layout names.
+#: The special value * means all layouts. The first listed layout will
+#: be used as the startup layout. For a list of available layouts, see
+#: the layouts.
+
+window_resize_step_cells 2
+window_resize_step_lines 2
+
+#: The step size (in units of cell width/cell height) to use when
+#: resizing windows. The cells value is used for horizontal resizing
+#: and the lines value for vertical resizing.
+
+window_border_width 1.0
+
+#: The width (in pts) of window borders. Will be rounded to the
+#: nearest number of pixels based on screen resolution. Note that
+#: borders are displayed only when more than one window is visible.
+#: They are meant to separate multiple windows.
+
+draw_minimal_borders yes
+
+#: Draw only the minimum borders needed. This means that only the
+#: minimum needed borders for inactive windows are drawn. That is only
+#: the borders that separate the inactive window from a neighbor. Note
+#: that setting a non-zero window margin overrides this and causes all
+#: borders to be drawn.
+
+window_margin_width 0.0
+
+#: The window margin (in pts) (blank area outside the border)
+
+single_window_margin_width -1000.0
+
+#: The window margin (in pts) to use when only a single window is
+#: visible. Negative values will cause the value of
+#: window_margin_width to be used instead.
+
+window_padding_width 0.0
+
+#: The window padding (in pts) (blank area between the text and the
+#: window border)
+
+active_border_color #00ff00
+
+#: The color for the border of the active window
+
+inactive_border_color #cccccc
+
+#: The color for the border of inactive windows
+
+bell_border_color #ff5a00
+
+#: The color for the border of inactive windows in which a bell has
+#: occurred
+
+inactive_text_alpha 1.0
+
+#: Fade the text in inactive windows by the specified amount (a number
+#: between zero and one, with zero being fully faded).
+
+#: }}}
+
+#: Tab bar {{{
+
+tab_bar_edge top
+
+#: Which edge to show the tab bar on, top or bottom
+
+tab_bar_margin_width 0.0
+
+#: The margin to the left and right of the tab bar (in pts)
+
+tab_bar_style fade
+
+#: The tab bar style, can be one of: fade or separator. In the fade
+#: style, each tab's edges fade into the background color, in the
+#: separator style, tabs are separated by a configurable separator.
+
+tab_fade 0.25 0.5 0.75 1
+
+#: Control how each tab fades into the background when using fade for
+#: the tab_bar_style. Each number is an alpha (between zero and one)
+#: that controls how much the corresponding cell fades into the
+#: background, with zero being no fade and one being full fade. You
+#: can change the number of cells used by adding/removing entries to
+#: this list.
+
+tab_separator " ┇"
+
+#: The separator between tabs in the tab bar when using separator as
+#: the tab_bar_style.
+
+active_tab_foreground   #000
+active_tab_background   #eee
+active_tab_font_style   bold-italic
+inactive_tab_foreground #444
+inactive_tab_background #999
+inactive_tab_font_style normal
+
+#: Tab bar colors and styles
+
+#: }}}
+
+#: Color scheme {{{
+
+foreground #839496
+background #002b36
+
+
+#: The foreground and background colors
+
+background_opacity         0.85
+dynamic_background_opacity no
+
+dim_opacity 0.4
+
+#: Solarized
+#selection_foreground #93a1a1
+#selection_background #586e75
+#
+#color0  #073642
+#color8  #002b36
+#
+#color1  #dc322f
+#color9  #cb4b16
+#
+#color2  #859900
+#color10 #586e75
+#
+#color3  #b58900
+#color11 #657b83
+#
+#color4  #268bd2
+#color12 #839496
+#
+#color5  #d33682
+#color13 #6c71c4
+#
+#color6  #2aa198
+#color14 #93a1a1
+#
+#color7  #eee8d5
+#color15 #fdf6e3
+
+# hard contrast: background = #1d2021
+# background #282828
+# soft contrast: background = #32302f
+background #32302f
+foreground #ebdbb2
+#foreground_bold = #ebdbb2
+
+color0  #282828
+color8  #928374
+
+color1  #cc241d
+color9  #fb4934
+
+color2  #98971a
+color10 #b8bb26
+
+color3  #d79921
+color11 #fabd2f
+
+color4  #458588
+color12 #83a598
+
+color5  #b16286
+color13 #d3869b
+
+color6  #689d6a
+color14 #8ec07c
+
+color7  #a89984
+color15 #ebdbb2
+
+#: }}}
+
+#: Advanced {{{
+
+shell .
+
+#: The shell program to execute. The default value of . means to use
+#: whatever shell is set as the default shell for the current user.
+#: Note that on macOS if you change this, you might need to add
+#: --login to ensure that the shell starts in interactive mode and
+#: reads its startup rc files.
+
+editor .
+
+#: The console editor to use when editing the kitty config file or
+#: similar tasks. A value of . means to use the environment variable
+#: EDITOR. Note that this environment variable has to be set not just
+#: in your shell startup scripts but system-wide, otherwise kitty will
+#: not see it.
+
+close_on_child_death no
+
+#: Close the window when the child process (shell) exits. If no (the
+#: default), the terminal will remain open when the child exits as
+#: long as there are still processes outputting to the terminal (for
+#: example disowned or backgrounded processes). If yes, the window
+#: will close as soon as the child process exits. Note that setting it
+#: to yes means that any background processes still using the terminal
+#: can fail silently because their stdout/stderr/stdin no longer work.
+
+allow_remote_control yes
+
+#: Allow other programs to control kitty. If you turn this on other
+#: programs can control all aspects of kitty, including sending text
+#: to kitty windows, opening new windows, closing windows, reading the
+#: content of windows, etc. Note that this even works over ssh
+#: connections.
+
+startup_session none
+
+#: Path to a session file to use for all kitty instances. Can be
+#: overridden by using the kitty --session command line option for
+#: individual instances. See sessions in the kitty documentation for
+#: details. Note that relative paths are interpreted with respect to
+#: the kitty config directory. Environment variables in the path are
+#: expanded.
+
+clipboard_control write-clipboard write-primary
+
+#: Allow programs running in kitty to read and write from the
+#: clipboard. You can control exactly which actions are allowed. The
+#: set of possible actions is: write-clipboard read-clipboard write-
+#: primary read-primary The default is to allow writing to the
+#: clipboard and primary selection. Note that enabling the read
+#: functionality is a security risk as it means that any program, even
+#: one running on a remote server via SSH can read your clipboard.
+
+term xterm-256color
+
+#: The value of the TERM environment variable to set. Changing this
+#: can break many terminal programs, only change it if you know what
+#: you are doing, not because you read some advice on Stack Overflow
+#: to change it.
+
+#: }}}
+
+#: OS specific tweaks {{{
+
+macos_titlebar_color system
+
+#: Change the color of the kitty window's titlebar on macOS. A value
+#: of system means to use the default system color, a value of
+#: background means to use the background color of the currently
+#: active window and finally you can use an arbitrary color, such as
+#: #12af59 or red. WARNING: This option works by using a hack, as
+#: there is no proper Cocoa API for it. It sets the background color
+#: of the entire window and makes the titlebar transparent. As such it
+#: is incompatible with background_opacity. If you want to use both,
+#: you are probably better off just hiding the titlebar with
+#: macos_hide_titlebar.
+
+macos_hide_titlebar no
+
+#: Hide the kitty window's title bar on macOS.
+
+x11_hide_window_decorations yes
+
+#: Hide the window decorations (title bar and window borders) on X11
+#: and Wayland. Whether this works and exactly what effect it has
+#: depends on the window manager, as it is the job of the window
+#: manager/compositor to draw window decorations.
+
+macos_option_as_alt yes
+
+#: Use the option key as an alt key. With this set to no, kitty will
+#: use the macOS native Option+Key = unicode character behavior. This
+#: will break any Alt+key keyboard shortcuts in your terminal
+#: programs, but you can use the macOS unicode input technique.
+
+macos_hide_from_tasks no
+
+#: Hide the kitty window from running tasks (Option+Tab) on macOS.
+
+macos_quit_when_last_window_closed no
+
+#: Have kitty quit when all the top-level windows are closed. By
+#: default, kitty will stay running, even with no open windows, as is
+#: the expected behavior on macOS.
+
+macos_window_resizable yes
+
+#: Disable this if you want kitty top-level (OS) windows to not be
+#: resizable on macOS.
+
+#: }}}
+
+#: Keyboard shortcuts {{{
+
+#: For a list of key names, see: GLFW keys
+#: <http://www.glfw.org/docs/latest/group__keys.html>. The name to use
+#: is the part after the GLFW_KEY_ prefix. For a list of modifier
+#: names, see: GLFW mods
+#: <http://www.glfw.org/docs/latest/group__mods.html>
+
+#: On Linux you can also use XKB key names to bind keys that are not
+#: supported by GLFW. See XKB keys
+#: <https://github.com/xkbcommon/libxkbcommon/blob/master/xkbcommon/xkbcommon-
+#: keysyms.h> for a list of key names. The name to use is the part
+#: after the XKB_KEY_ prefix. Note that you should only use an XKB key
+#: name for keys that are not present in the list of GLFW keys.
+
+#: You can use the special action no_op to unmap a keyboard shortcut
+#: that is assigned in the default configuration.
+
+#: You can combine multiple actions to be triggered by a single
+#: shortcut, using the syntax below::
+
+#:     map key combine <separator> action1 <separator> action2 <separator> action3 ...
+
+#: For example::
+
+#:     map kitty_mod+e combine : new_window : next_layout
+
+#: this will create a new window and switch to the next available
+#: layout
+
+#: You can use multi-key shortcuts using the syntax shown below::
+
+#:     map key1>key2>key3 action
+
+#: For example::
+
+#:     map ctrl+f>2 set_font_size 20
+
+kitty_mod ctrl+shift
+
+#: The value of kitty_mod is used as the modifier for all default
+#: shortcuts, you can change it in your kitty.conf to change the
+#: modifiers for all the default shortcuts.
+
+clear_all_shortcuts no
+
+#: You can have kitty remove all shortcut definition seen up to this
+#: point. Useful, for instance, to remove the default shortcuts.
+
+#: Clipboard {{{
+
+map kitty_mod+c  copy_to_clipboard
+map kitty_mod+v  paste_from_clipboard
+map kitty_mod+s  paste_from_selection
+map shift+insert paste_from_selection
+map kitty_mod+o  pass_selection_to_program
+
+#: You can also pass the contents of the current selection to any
+#: program using pass_selection_to_program. By default, the system's
+#: open program is used, but you can specify your own, for example::
+
+#:     map kitty_mod+o pass_selection_to_program firefox
+
+#: You can pass the current selection to a terminal program running in
+#: a new kitty window, by using the @selection placeholder::
+
+#:     map kitty_mod+y new_window less @selection
+
+#: }}}
+
+#: Scrolling {{{
+
+map kitty_mod+up        scroll_line_up
+map kitty_mod+k         scroll_line_up
+map kitty_mod+down      scroll_line_down
+map kitty_mod+j         scroll_line_down
+map kitty_mod+page_up   scroll_page_up
+map kitty_mod+page_down scroll_page_down
+map kitty_mod+home      scroll_home
+map kitty_mod+end       scroll_end
+map kitty_mod+h         show_scrollback
+
+#: You can send the contents of the current screen + history buffer as
+#: stdin to an arbitrary program using the placeholders @text (which
+#: is the plain text) and @ansi (which includes text styling escape
+#: codes). For only the current screen, use @screen or @ansi_screen.
+#: For example, the following command opens the scrollback buffer in
+#: less in a new window::
+
+#:     map kitty_mod+y new_window @ansi less +G -R
+
+#: }}}
+
+#: Window management {{{
+
+map kitty_mod+enter new_window
+
+#: You can open a new window running an arbitrary program, for
+#: example::
+
+#:     map kitty_mod+y      new_window mutt
+
+#: You can open a new window with the current working directory set to
+#: the working directory of the current window using::
+
+#:     map ctrl+alt+enter    new_window_with_cwd
+
+map kitty_mod+n new_os_window
+map kitty_mod+w close_window
+map kitty_mod+] next_window
+map kitty_mod+[ previous_window
+map kitty_mod+f move_window_forward
+map kitty_mod+b move_window_backward
+map kitty_mod+` move_window_to_top
+map kitty_mod+r start_resizing_window
+map kitty_mod+1 first_window
+map kitty_mod+2 second_window
+map kitty_mod+3 third_window
+map kitty_mod+4 fourth_window
+map kitty_mod+5 fifth_window
+map kitty_mod+6 sixth_window
+map kitty_mod+7 seventh_window
+map kitty_mod+8 eighth_window
+map kitty_mod+9 ninth_window
+map kitty_mod+0 tenth_window
+#: }}}
+
+#: Tab management {{{
+
+map kitty_mod+right next_tab
+map kitty_mod+left  previous_tab
+map kitty_mod+t     new_tab
+map kitty_mod+q     close_tab
+map kitty_mod+.     move_tab_forward
+map kitty_mod+,     move_tab_backward
+map kitty_mod+alt+t set_tab_title
+
+#: You can also create shortcuts to go to specific tabs, with 1 being
+#: the first tab::
+
+#:     map ctrl+alt+1 goto_tab 1
+#:     map ctrl+alt+2 goto_tab 2
+
+#: Just as with new_window above, you can also pass the name of
+#: arbitrary commands to run when using new_tab and use
+#: new_tab_with_cwd.
+#: }}}
+
+#: Layout management {{{
+
+map kitty_mod+l next_layout
+
+#: You can also create shortcuts to switch to specific layouts::
+
+#:     map ctrl+alt+t goto_layout tall
+#:     map ctrl+alt+s goto_layout stack
+#: }}}
+
+#: Font sizes {{{
+
+#: You can change the font size for all top-level kitty windows at a
+#: time or only the current one.
+
+map kitty_mod+equal     change_font_size all +2.0
+map kitty_mod+minus     change_font_size all -2.0
+map kitty_mod+backspace change_font_size all 0
+
+#: To setup shortcuts for specific font sizes::
+
+#:     map kitty_mod+f6 change_font_size all 10.0
+
+#: To setup shortcuts to change only the current window's font size::
+
+#:     map kitty_mod+f6 change_font_size current 10.0
+#: }}}
+
+#: Select and act on visible text {{{
+
+#: Use the hints kitten to select text and either pass it to an
+#: external program or insert it into the terminal or copy it to the
+#: clipboard.
+
+map kitty_mod+e kitten hints
+
+#: Open a currently visible URL using the keyboard. The program used
+#: to open the URL is specified in open_url_with.
+
+map kitty_mod+p>f kitten hints --type path --program -
+
+#: Select a path/filename and insert it into the terminal. Useful, for
+#: instance to run git commands on a filename output from a previous
+#: git command.
+
+map kitty_mod+p>shift+f kitten hints --type path
+
+#: Select a path/filename and open it with the default open program.
+
+map kitty_mod+p>l kitten hints --type line --program -
+
+#: Select a line of text and insert it into the terminal. Use for the
+#: output of things like: ls -1
+
+map kitty_mod+p>w kitten hints --type word --program -
+
+#: Select words and insert into terminal.
+
+map kitty_mod+p>h kitten hints --type hash --program -
+
+#: Select something that looks like a hash and insert it into the
+#: terminal. Useful with git, which uses sha1 hashes to identify
+#: commits
+
+
+#: The hints kitten has many more modes of operation that you can map
+#: to different shortcuts. For a full description see kittens/hints.
+#: }}}
+
+#: Miscellaneous {{{
+
+map kitty_mod+f11    toggle_fullscreen
+map kitty_mod+u      input_unicode_character
+map kitty_mod+f2     edit_config_file
+map kitty_mod+escape kitty_shell window
+
+#: Open the kitty shell in a new window/tab/overlay/os_window to
+#: control kitty using commands.
+
+map kitty_mod+a>m set_background_opacity +0.1
+map kitty_mod+a>l set_background_opacity -0.1
+map kitty_mod+a>1 set_background_opacity 1
+map kitty_mod+a>d set_background_opacity default
+
+#: You can tell kitty to send arbitrary (UTF-8) encoded text to the
+#: client program when pressing specified shortcut keys. For example::
+
+#:     map ctrl+alt+a send_text all Special text
+
+#: This will send "Special text" when you press the ctrl+alt+a key
+#: combination.  The text to be sent is a python string literal so you
+#: can use escapes like \x1b to send control codes or \u21fb to send
+#: unicode characters (or you can just input the unicode characters
+#: directly as UTF-8 text). The first argument to send_text is the
+#: keyboard modes in which to activate the shortcut. The possible
+#: values are normal or application or kitty or a comma separated
+#: combination of them.  The special keyword all means all modes. The
+#: modes normal and application refer to the DECCKM cursor key mode
+#: for terminals, and kitty refers to the special kitty extended
+#: keyboard protocol.
+
+#: Another example, that outputs a word and then moves the cursor to
+#: the start of the line (same as pressing the Home key)::
+
+#:     map ctrl+alt+a send_text normal Word\x1b[H
+#:     map ctrl+alt+a send_text application Word\x1bOH
+
+#: }}}
+
+# }}}