diff --git a/bin/install.sh b/bin/install.sh
index 94bd07a..3b2c009 100755
--- a/bin/install.sh
+++ b/bin/install.sh
@@ -25,6 +25,7 @@ mkdir -p ~/.config/nvim/lua
 ln -sf $(pwd)/dotfiles/neovim/lua/lualine_setup.lua ~/.config/nvim/lua/lualine_setup.lua
 mkdir -p ~/.config/nvim/lua/lspconfig/server_configurations
 ln -sf $(pwd)/dotfiles/neovim/lua/lspconfig/server_configurations/satysfi_ls.lua ~/.config/nvim/lua/lspconfig/server_configurations/satysfi_ls.lua
+ln -sf $(pwd)/dotfiles/neovim/lua/lspconfig/server_configurations/jetls.lua ~/.config/nvim/lua/lspconfig/server_configurations/jetls.lua
 mkdir -p ~/.config/nvim/after/ftplugin
 ln -sf $(pwd)/dotfiles/neovim/after/ftplugin/satysfi.lua ~/.config/nvim/after/ftplugin/satysfi.lua
 ln -sf $(pwd)/dotfiles/neovim/after/ftplugin/tex.lua ~/.config/nvim/after/ftplugin/tex.lua
diff --git a/dotfiles/neovim/init.lua b/dotfiles/neovim/init.lua
index 636630f..b66ec39 100644
--- a/dotfiles/neovim/init.lua
+++ b/dotfiles/neovim/init.lua
@@ -50,6 +50,28 @@ require('lazy').setup({
         'lervag/vimtex',
         ft = { 'tex', 'latex' },
     },
+    {
+        -- 'kdheepak/JET.nvim',
+        'qwjyh/JET.nvim',
+        dir = '~/work/julia/JET.nvim',
+        dev = false, -- set true to use dir
+        lazy = true,
+        dependencies = {
+            'jose-elias-alvarez/null-ls.nvim',
+        },
+        config = function()
+            require("jet").setup {
+                timeout = 15000,
+                -- disable setup since null-ls doesn't support lspconfig
+                -- https://github.com/jose-elias-alvarez/null-ls.nvim/commit/656e5cb554fed1eb2f398f325511601fab988ce0
+                setup_lspconfig = false,
+                debug = true,
+            }
+        end,
+        -- build process(make environments and add JET.jl)
+        build = [[mkdir -p ~/.julia/environments/nvim-null-ls && julia --startup-file=no --project=~/.julia/environments/nvim-null-ls -e 'using Pkg; Pkg.add("JET")']],
+        -- ft = { 'julia', },
+    },
     { 'lewis6991/gitsigns.nvim', },
     'neovim/nvim-lspconfig',
     {
@@ -378,6 +400,8 @@ lspconfig.texlab.setup {
     on_attach = on_attach,
     capabilities = capabilities,
 }
+-- -- jetls
+-- lspconfig.jetls.setup {}
 
 -- nvim-cmp setup
 local cmp = require 'cmp'
diff --git a/dotfiles/neovim/lua/lspconfig/server_configurations/jetls.lua b/dotfiles/neovim/lua/lspconfig/server_configurations/jetls.lua
new file mode 100644
index 0000000..6f6f599
--- /dev/null
+++ b/dotfiles/neovim/lua/lspconfig/server_configurations/jetls.lua
@@ -0,0 +1,68 @@
+-- local cmd = {
+--     'julia',
+--     '--startup-file=no',
+--     '--history-file=no',
+--     '-e',
+--     [[
+--     # Load JETLS.jl: attempt to load from ~/.julia/environments/nvim-lspconfig
+--     # with the regular load path as a fallback
+--     jet_install_path = joinpath(
+--         get(DEPOT_PATH, 1, joinpath(homedir(), ".julia")),
+--         "environments", "nvim-lspconfig"
+--     )
+--     pushfirst!(LOAD_PATH, jet_install_path)
+--     using JETLS
+--     popfirst!(LOAD_PATH)
+--     depot_path = get(ENV, "JULIA_DEPOT_PATH", "")
+--     project_path = let
+--         dirname(something(
+--             ## 1. Finds an explicitly set project (JULIA_PROJECT)
+--             Base.load_path_expand((
+--                 p = get(ENV, "JULIA_PROJECT", nothing);
+--                 p === nothing ? nothing : isempty(p) ? nothing : p
+--             )),
+--             ## 2. Look for a Project.toml file in the current working directory,
+--             ##    or parent directories, with $HOME as an upper boundary
+--             Base.current_project(),
+--             ## 3. First entry in the load path
+--             get(Base.load_path(), 1, nothing),
+--             ## 4. Fallback to default global environment,
+--             ##    this is more or less unreachable
+--             Base.load_path_expand("@v#.#"),
+--         ))
+--     end
+--     @info "Running JETLS language server" VERSION pwd() project_path
+--     @info "not running yet"
+--     JETLS.runserver(stdin, stdout)
+--   ]],
+-- }
+local cmd = {
+    'julia',
+    '--startup-file=no',
+    '--history-file=no',
+    '-e',
+    [[
+        println("===STARTING JETLS===")
+        using JETLS
+        JETLS.runserver(stdin, stdout)
+        @info "Running JETLS" VERSION pwd() project_path
+        @info "============================"
+    ]],
+}
+
+return {
+    default_config = {
+        cmd = cmd,
+        filetypes = { 'julia' },
+        root_dir = function(fname)
+            local util = require 'lspconfig.util'
+            return util.root_pattern 'Project.toml' (fname) or util.find_git_ancestor(fname) or
+                util.path.dirname(fname)
+        end,
+    },
+    docs = {
+        description = [[
+TBW
+    ]],
+    },
+}