diff --git a/bin/install.ps1 b/bin/install.ps1
index 2991261..be17a41 100644
--- a/bin/install.ps1
+++ b/bin/install.ps1
@@ -77,4 +77,7 @@ New-Item -ItemType SymbolicLink -Path ~\.config\wezterm\wezterm.lua -Target (Res
 # julia
 mkdir ~\.config\julia\config
 New-Item -ItemType SymbolicLink -Path ~\.julia\config\startup.jl -Target (Resolve-Path .\dotfiles\startup_windows.jl) -Force
+# lf
+mkdir $env:LOCALAPPDATA\lf
+New-Item -ItemType SymbolicLink -Path $env:LOCALAPPDATA\lf\lfrc -Target (Resolve-Path .\dotfiles\lf\lfrc) -Force
 
diff --git a/bin/install.sh b/bin/install.sh
index 905daea..4da1d01 100755
--- a/bin/install.sh
+++ b/bin/install.sh
@@ -45,3 +45,8 @@ ln -sf $(pwd)/dotfiles/neovim/luasnippets/satysfi/math.lua ~/.config/nvim/luasni
 
 mkdir -p ~/.julia/config
 ln -sf $(pwd)/dotfiles/startup_linux.jl ~/.julia/config/startup.jl
+
+mkdir -p ~/.config/lf
+ln -sf $(pwd)/dotfiles/lf/lfrc ~/.config/lf/lfrc
+
+ln -sf $(pwd)/dotfiles/bat/config "$(bat --config-file)"
diff --git a/bin/neovim/add_dependencies.jl b/bin/neovim/add_dependencies.jl
index 19e6963..f4560c5 100644
--- a/bin/neovim/add_dependencies.jl
+++ b/bin/neovim/add_dependencies.jl
@@ -24,6 +24,9 @@ open(out_path, "w") do io
     println(io, "using LanguageServer")
     println(io, "using " * join(pkg_ls_deps, ", "))
     println(io, "using " * join(pkg_extra, ", "))
+    if Sys.iswindows()
+        println(io, "import FileWatching")
+    end
 end
 @info "finished writing precompile head file"
 
diff --git a/dotfiles/bat/config b/dotfiles/bat/config
new file mode 100644
index 0000000..7042fd2
--- /dev/null
+++ b/dotfiles/bat/config
@@ -0,0 +1,4 @@
+# use Catppuccin for bat
+# https://github.com/catppuccin/bat
+# Installation instruction on the readme
+--theme="Catppuccin Latte"
diff --git a/dotfiles/lf/lfrc b/dotfiles/lf/lfrc
new file mode 100644
index 0000000..15b8558
--- /dev/null
+++ b/dotfiles/lf/lfrc
@@ -0,0 +1,23 @@
+cmap <tab> cmd-menu-complete
+cmap <backtab> cmd-menu-complete-back
+
+## https://github.com/gokcehan/lf/wiki/Integrations#eza
+#cmd on-select &{{
+#    lf -remote "send $id set statfmt \"$(eza -ld --color=always "$f" | sed 's/\\/\\\\/g;s/"/\\"/g')\""
+#}}
+#
+#cmd git_branch ${{
+#    git branch | fzf | xargs git checkout
+#    pwd_shell="$(pwd | sed 's/\\/\\\\/g;s/"/\\"/g')"
+#    lf -remote "send $id updir; cd \"$pwd_shell\""
+#}}
+#map gb :git_branch
+#map gp $clear; git pull --rebase || true; echo "press ENTER"; read ENTER
+#map gs $clear; git status; echo "press ENTER"; read ENTER
+#map gl $clear; git log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit
+#
+#cmd on-cd &{{
+#    fmt="$(STARSHIP_SHELL= starship prompt | sed 's/\\/\\\\/g;s/"/\\"/g')"
+#    lf -remote "send $id set promptfmt \"$fmt\""
+#}}
+
diff --git a/dotfiles/neovim/init.lua b/dotfiles/neovim/init.lua
index 24b870f..daf7440 100644
--- a/dotfiles/neovim/init.lua
+++ b/dotfiles/neovim/init.lua
@@ -279,6 +279,65 @@ require('lazy').setup({
             })
         end,
     },
+    {
+        'chomosuke/typst-preview.nvim',
+        ft = 'typst',
+        version = 'v1.*',
+        build = function()
+            require 'typst-preview'.update()
+        end,
+        config = function()
+            require 'typst-preview'.setup {
+                -- Setting this true will enable printing debug information with print()
+                debug = false,
+
+                -- Custom format string to open the output link provided with %s
+                -- Example: open_cmd = 'firefox %s -P typst-preview --class typst-preview'
+                open_cmd = nil,
+
+                -- Setting this to 'always' will invert black and white in the preview
+                -- Setting this to 'auto' will invert depending if the browser has enable
+                -- dark mode
+                -- Setting this to '{"rest": "<option>","image": "<option>"}' will apply
+                -- your choice of color inversion to images and everything else
+                -- separately.
+                invert_colors = 'never',
+
+                -- Whether the preview will follow the cursor in the source file
+                follow_cursor = true,
+
+                -- Provide the path to binaries for dependencies.
+                -- Setting this will skip the download of the binary by the plugin.
+                -- Warning: Be aware that your version might be older than the one
+                -- required.
+                dependencies_bin = {
+                    ['tinymist'] = nil,
+                    ['websocat'] = nil
+                },
+
+                -- A list of extra arguments (or nil) to be passed to previewer.
+                -- For example, extra_args = { "--input=ver=draft", "--ignore-system-fonts" }
+                extra_args = nil,
+
+                -- This function will be called to determine the root of the typst project
+                get_root = function(path_of_main_file)
+                    -- Use root of git repository as a --root for typst
+                    local rootpath = vim.fs.root(path_of_main_file, '.git')
+                    if rootpath then
+                        return rootpath
+                    else
+                        return vim.fn.fnamemodify(path_of_main_file, ':p:h')
+                    end
+                end,
+
+                -- This function will be called to determine the main file of the typst
+                -- project.
+                get_main_file = function(path_of_buffer)
+                    return path_of_buffer
+                end,
+            }
+        end
+    },
 })
 
 -----------------------------------------------------------
diff --git a/nix/README.md b/nix/README.md
new file mode 100644
index 0000000..78b8257
--- /dev/null
+++ b/nix/README.md
@@ -0,0 +1,14 @@
+# Experimental Nix flake for general cli environment
+- Basically for servers, not for my laptops.
+
+# How to Install
+```sh
+$ nix flake build
+$ nix profile install .#my-packages
+```
+
+# How to upgrade
+```sh
+$ nix flake upgrade
+$ nix profile upgrade my-packages
+```
diff --git a/nix/flake.nix b/nix/flake.nix
new file mode 100644
index 0000000..b43071e
--- /dev/null
+++ b/nix/flake.nix
@@ -0,0 +1,25 @@
+{
+  description = "A very basic flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs }: {
+
+    packages.x86_64-linux.my-packages = nixpkgs.legacyPackages.x86_64-linux.buildEnv {
+      name = "my-packages-list";
+      paths = [
+        nixpkgs.legacyPackages.x86_64-linux.fish
+        nixpkgs.legacyPackages.x86_64-linux.git
+        nixpkgs.legacyPackages.x86_64-linux.curl
+        nixpkgs.legacyPackages.x86_64-linux.neovim
+        nixpkgs.legacyPackages.x86_64-linux.ripgrep
+        nixpkgs.legacyPackages.x86_64-linux.fzf
+
+        nixpkgs.legacyPackages.x86_64-linux.clang-tools
+      ];
+    };
+  };
+}
+