diff --git a/config/neomutt/accounts/uchicago b/config/neomutt/accounts/uchicago
index 6ea7462..9252055 100644
--- a/config/neomutt/accounts/uchicago
+++ b/config/neomutt/accounts/uchicago
@@ -9,7 +9,6 @@ set crypt_autosign = no
 set crypt_opportunistic_encrypt = no
 set pgp_use_gpg_agent = yes
 set mbox_type = Maildir
-set sort = "threads"
 
 # Account settings
 set folder = '~/mail/uchicago'
diff --git a/config/neomutt/keybinds b/config/neomutt/keybinds
index 4798138..cb0ad99 100644
--- a/config/neomutt/keybinds
+++ b/config/neomutt/keybinds
@@ -10,6 +10,7 @@ bind editor <Tab> complete-query
 bind editor ^T complete
 
 # Pager
+bind index,pager V edit-raw-message
 bind pager c imap-fetch-mail
 bind pager j next-line
 bind pager k previous-line
diff --git a/config/neomutt/neomuttrc b/config/neomutt/neomuttrc
index 4004a46..affbfd5 100644
--- a/config/neomutt/neomuttrc
+++ b/config/neomutt/neomuttrc
@@ -33,8 +33,9 @@ set date_format = "%d.%m.%Y %H:%M"
 
 # set sort = date
 # set sort_aux = date
-set use_threads = reverse
-set sort = last-date-received
+set use_threads = threads
+set sort = date
+set sort_aux = date-received
 set sort_browser = reverse-date
 set uncollapse_jump
 set sort_re
@@ -59,7 +60,7 @@ set tilde
 unset markers
 
 # MTA (mail transfer agent)
-set sendmail = 'msmtpq --read-envelope-from --read-recipients'
+set sendmail = 'msmtp --read-envelope-from --read-recipients'
 
 # Include keybindings
 source ~/.config/neomutt/keybinds
diff --git a/config/nvim/init.lua b/config/nvim/init.lua
index 226515e..8045d11 100644
--- a/config/nvim/init.lua
+++ b/config/nvim/init.lua
@@ -56,6 +56,7 @@ add 'fang2hou/blink-copilot'
 add 'aserowy/tmux.nvim'
 add 'NMAC427/guess-indent.nvim'
 add 'wakatime/vim-wakatime'
+add 'OXY2DEV/markview.nvim'
 
 -- color themes
 add 'EdenEast/nightfox.nvim'
@@ -319,7 +320,7 @@ later(function()
   require('blink.cmp').setup {
     keymap = {
       preset = 'none',
-      ['<C-space>'] = { 'show', 'show_documentation', 'hide_documentation' },
+      ['<C-y>'] = { 'show', 'show_documentation', 'hide_documentation' },
       ['<C-e>'] = { 'hide' },
       ['<CR>'] = { 'accept', 'fallback' },
       ['<Tab>'] = {
@@ -347,6 +348,9 @@ later(function()
       },
     },
     completion = {
+      trigger = {
+        show_on_trigger_character = true,
+      },
       menu = {
         enabled = true,
         border = 'rounded',
@@ -376,6 +380,22 @@ later(function()
   }
 end)
 
+later(
+  function()
+    require('markview').setup {
+      markdown_inline = {
+        checkboxes = {
+          checked = {
+            text = '󰗠',
+            hl = 'MarkviewCheckboxChecked',
+            scope_hl = 'MarkviewCheckboxStriked',
+          },
+        },
+      },
+    }
+  end
+)
+
 later(function()
   require('mason').setup {
     ui = {
@@ -395,6 +415,7 @@ later(function()
       'rust_analyzer', -- Rust
       'clangd', -- C/C++
       'copilot',
+      'marksman', -- Markdown + Zettelkasten
     },
     automatic_installation = true,
   }
@@ -502,8 +523,15 @@ later(function()
     root_markers = { 'flake.nix', 'default.nix', 'shell.nix', '.git' },
   }
 
+  -- Markdown (marksman)
+  vim.lsp.config.marksman = {
+    cmd = { 'marksman', 'server' },
+    filetypes = { 'markdown', 'markdown.mdx' },
+    root_markers = { '.marksman.toml', '.git', '.editorconfig' },
+  }
+
   -- Enable language servers
-  vim.lsp.enable { 'lua_ls', 'ts_ls', 'pyright', 'rust_analyzer', 'clangd', 'copilot', 'nixd' }
+  vim.lsp.enable { 'lua_ls', 'ts_ls', 'pyright', 'rust_analyzer', 'clangd', 'copilot', 'nixd', 'marksman' }
 end)
 
 local map = function(mode, lhs, rhs, opts)
diff --git a/config/nvim/lua/raytheme.lua b/config/nvim/lua/raytheme.lua
index 7bda1b9..1a75387 100644
--- a/config/nvim/lua/raytheme.lua
+++ b/config/nvim/lua/raytheme.lua
@@ -390,6 +390,115 @@ local function apply_highlights(c, opts)
   hi('@markup.strikethrough', { strikethrough = true })
   hi('@markup.quote', { fg = c.comment, italic = true })
 
+  -- Markview.nvim
+  -- Palette colors (used as base for many elements)
+  hi('MarkviewPalette0', { fg = c.tag, bg = c.bg_dark })
+  hi('MarkviewPalette0Fg', { fg = c.tag })
+  hi('MarkviewPalette0Bg', { bg = c.bg_dark })
+  hi('MarkviewPalette0Sign', { fg = c.tag })
+  hi('MarkviewPalette1', { fg = c.keyword, bg = c.bg_dark })
+  hi('MarkviewPalette1Fg', { fg = c.keyword })
+  hi('MarkviewPalette1Bg', { bg = c.bg_dark })
+  hi('MarkviewPalette1Sign', { fg = c.keyword })
+  hi('MarkviewPalette2', { fg = c.func, bg = c.bg_dark })
+  hi('MarkviewPalette2Fg', { fg = c.func })
+  hi('MarkviewPalette2Bg', { bg = c.bg_dark })
+  hi('MarkviewPalette2Sign', { fg = c.func })
+  hi('MarkviewPalette3', { fg = c.type, bg = c.bg_dark })
+  hi('MarkviewPalette3Fg', { fg = c.type })
+  hi('MarkviewPalette3Bg', { bg = c.bg_dark })
+  hi('MarkviewPalette3Sign', { fg = c.type })
+  hi('MarkviewPalette4', { fg = c.constant, bg = c.bg_dark })
+  hi('MarkviewPalette4Fg', { fg = c.constant })
+  hi('MarkviewPalette4Bg', { bg = c.bg_dark })
+  hi('MarkviewPalette4Sign', { fg = c.constant })
+  hi('MarkviewPalette5', { fg = c.misc, bg = c.bg_dark })
+  hi('MarkviewPalette5Fg', { fg = c.misc })
+  hi('MarkviewPalette5Bg', { bg = c.bg_dark })
+  hi('MarkviewPalette5Sign', { fg = c.misc })
+  hi('MarkviewPalette6', { fg = c.string, bg = c.bg_dark })
+  hi('MarkviewPalette6Fg', { fg = c.string })
+  hi('MarkviewPalette6Bg', { bg = c.bg_dark })
+  hi('MarkviewPalette6Sign', { fg = c.string })
+
+  -- Headings
+  hi('MarkviewHeading1', { fg = c.tag, bold = true })
+  hi('MarkviewHeading2', { fg = c.keyword, bold = true })
+  hi('MarkviewHeading3', { fg = c.func, bold = true })
+  hi('MarkviewHeading4', { fg = c.type, bold = true })
+  hi('MarkviewHeading5', { fg = c.constant, bold = true })
+  hi('MarkviewHeading6', { fg = c.misc, bold = true })
+  hi('MarkviewHeading1Sign', { fg = c.tag })
+  hi('MarkviewHeading2Sign', { fg = c.keyword })
+  hi('MarkviewHeading3Sign', { fg = c.func })
+  hi('MarkviewHeading4Sign', { fg = c.type })
+  hi('MarkviewHeading5Sign', { fg = c.constant })
+  hi('MarkviewHeading6Sign', { fg = c.misc })
+
+  -- Code
+  hi('MarkviewCode', { bg = c.bg_dark })
+  hi('MarkviewCodeInfo', { fg = c.comment })
+  hi('MarkviewCodeFg', { fg = c.fg })
+  hi('MarkviewInlineCode', { fg = c.string, bg = c.bg_dark })
+
+  -- Lists
+  hi('MarkviewListItemStar', { fg = c.tag })
+  hi('MarkviewListItemPlus', { fg = c.string })
+  hi('MarkviewListItemMinus', { fg = c.keyword })
+
+  -- Checkboxes
+  hi('MarkviewCheckboxChecked', { fg = c.string })
+  hi('MarkviewCheckboxUnchecked', { fg = c.fg })
+  hi('MarkviewCheckboxPending', { fg = c.warning })
+  hi('MarkviewCheckboxProgress', { fg = c.info })
+  hi('MarkviewCheckboxCancelled', { fg = c.error, strikethrough = true })
+  hi('MarkviewCheckboxStriked', { fg = c.fg_gutter, strikethrough = true })
+
+  -- Block quotes
+  hi('MarkviewBlockQuoteDefault', { fg = c.comment })
+  hi('MarkviewBlockQuoteWarn', { fg = c.warning })
+  hi('MarkviewBlockQuoteError', { fg = c.error })
+  hi('MarkviewBlockQuoteNote', { fg = c.info })
+  hi('MarkviewBlockQuoteOk', { fg = c.string })
+  hi('MarkviewBlockQuoteSpecial', { fg = c.misc })
+
+  -- Tables
+  hi('MarkviewTableHeader', { fg = c.tag, bold = true })
+  hi('MarkviewTableBorder', { fg = c.border })
+  hi('MarkviewTableAlignLeft', { fg = c.border })
+  hi('MarkviewTableAlignCenter', { fg = c.border })
+  hi('MarkviewTableAlignRight', { fg = c.border })
+
+  -- Links
+  hi('MarkviewHyperlink', { fg = c.misc, underline = true })
+  hi('MarkviewEmail', { fg = c.misc, underline = true })
+  hi('MarkviewImage', { fg = c.support, underline = true })
+
+  -- Text styles
+  hi('MarkviewSubscript', { fg = c.fg_dark })
+  hi('MarkviewSuperscript', { fg = c.fg_dark })
+
+  -- Icons (match palette colors)
+  hi('MarkviewIcon0', { fg = c.tag })
+  hi('MarkviewIcon1', { fg = c.keyword })
+  hi('MarkviewIcon2', { fg = c.func })
+  hi('MarkviewIcon3', { fg = c.type })
+  hi('MarkviewIcon4', { fg = c.constant })
+  hi('MarkviewIcon5', { fg = c.misc })
+  hi('MarkviewIcon6', { fg = c.string })
+
+  -- Gradients (subtle transition from dark to light)
+  hi('MarkviewGradient0', { fg = c.fg_gutter })
+  hi('MarkviewGradient1', { fg = c.fg_gutter })
+  hi('MarkviewGradient2', { fg = c.comment })
+  hi('MarkviewGradient3', { fg = c.comment })
+  hi('MarkviewGradient4', { fg = c.fg_dark })
+  hi('MarkviewGradient5', { fg = c.fg_dark })
+  hi('MarkviewGradient6', { fg = c.fg_dark })
+  hi('MarkviewGradient7', { fg = c.fg })
+  hi('MarkviewGradient8', { fg = c.fg })
+  hi('MarkviewGradient9', { fg = c.fg })
+
   -- Apply user overrides
   if opts.overrides then
     for group, hl in pairs(opts.overrides) do
diff --git a/config/sketchybar/items/widgets/calendar.lua b/config/sketchybar/items/widgets/calendar.lua
index 48a128e..b66c5e3 100644
--- a/config/sketchybar/items/widgets/calendar.lua
+++ b/config/sketchybar/items/widgets/calendar.lua
@@ -8,8 +8,9 @@ local calendar = sbar.add('item', constants.items.CALENDAR, {
 
 calendar:subscribe({ 'forced', 'routine', 'system_woke' }, function(env)
   calendar:set {
-    label = os.date '%a %d %b, %H:%M',
+    label = os.date '%a %d %b, %I:%M %p',
   }
 end)
 
-calendar:subscribe('mouse.clicked', function(env) sbar.exec "open -a 'Calendar'" end)
+-- calendar:subscribe('mouse.clicked', function(env) sbar.exec "open -a 'Calendar'" end)
+calendar:subscribe('mouse.clicked', function(env) sbar.exec "open -a 'Dato'" end)
diff --git a/config/tmux/tmux.conf b/config/tmux/tmux.conf
index fd8fd33..70962a9 100644
--- a/config/tmux/tmux.conf
+++ b/config/tmux/tmux.conf
@@ -28,6 +28,7 @@ set-option -sa terminal-features ',xterm-kitty:RGB:extkeys'
 # https://github.com/folke/tokyonight.nvim#making-undercurls-work-properly-in-tmux
 set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm'  # undercurl support
 set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'
+set -as terminal-overrides ',*:smxx=\E[9m'  # strikethrough support
 
 setw -g automatic-rename on   # rename window to reflect current program
 set -g renumber-windows on    # renumber windows when a window is closed