diff --git a/.config/nvim/init.lua b/.config/nvim/init.lua
index 0042d90..407d43e 100644
--- a/.config/nvim/init.lua
+++ b/.config/nvim/init.lua
@@ -3,4 +3,3 @@ require("config.keymaps")
 require("config.autocmds")
 require("config.diagnostics")
 require("config.lazy")
-
diff --git a/.config/nvim/lua/config/autocmds.lua b/.config/nvim/lua/config/autocmds.lua
index a050543..e2ba9af 100644
--- a/.config/nvim/lua/config/autocmds.lua
+++ b/.config/nvim/lua/config/autocmds.lua
@@ -9,4 +9,3 @@ vim.api.nvim_create_autocmd("TextYankPost", {
 })
 
 -- optional: auto format on save (handled by conform too, but this is a safe place for extra logic later)
-
diff --git a/.config/nvim/lua/config/diagnostics.lua b/.config/nvim/lua/config/diagnostics.lua
index 0311572..965bf87 100644
--- a/.config/nvim/lua/config/diagnostics.lua
+++ b/.config/nvim/lua/config/diagnostics.lua
@@ -18,4 +18,3 @@ vim.diagnostic.config({
   severity_sort = true,
   float = { border = "rounded", source = "if_many" },
 })
-
diff --git a/.config/nvim/lua/config/keymaps.lua b/.config/nvim/lua/config/keymaps.lua
index f1fded7..3e97e46 100644
--- a/.config/nvim/lua/config/keymaps.lua
+++ b/.config/nvim/lua/config/keymaps.lua
@@ -20,3 +20,13 @@ map("n", "<leader>fg", "<cmd>Telescope live_grep<cr>", { desc = "Live grep" })
 map("n", "<leader>fb", "<cmd>Telescope buffers<cr>", { desc = "Buffers" })
 map("n", "<leader>fh", "<cmd>Telescope help_tags<cr>", { desc = "Help" })
 
+-- file tree
+map("n", "<leader>tt", "<cmd>Neotree toggle<cr>", { desc = "Toggle file tree" })
+map("n", "<leader>tf", "<cmd>Neotree reveal<cr>", { desc = "Reveal file in tree" })
+
+-- Git
+map("n", "<leader>gs", "<cmd>Git<cr>", { desc = "Git status" })
+map("n", "<leader>gg", "<cmd>LazyGit<cr>", { desc = "LazyGit" })
+map("n", "<leader>gd", "<cmd>DiffviewOpen<cr>", { desc = "Diffview open" })
+map("n", "<leader>gD", "<cmd>DiffviewClose<cr>", { desc = "Diffview close" })
+map("n", "<leader>gh", "<cmd>DiffviewFileHistory<cr>", { desc = "Diffview file history" })
diff --git a/.config/nvim/lua/config/lazy.lua b/.config/nvim/lua/config/lazy.lua
index 37546ea..9abf13f 100644
--- a/.config/nvim/lua/config/lazy.lua
+++ b/.config/nvim/lua/config/lazy.lua
@@ -19,4 +19,3 @@ require("lazy").setup({
   checker = { enabled = true },
   ui = { border = "rounded" },
 })
-
diff --git a/.config/nvim/lua/config/options.lua b/.config/nvim/lua/config/options.lua
index e292339..cc410af 100644
--- a/.config/nvim/lua/config/options.lua
+++ b/.config/nvim/lua/config/options.lua
@@ -1,6 +1,12 @@
 vim.g.mapleader = " "
 vim.g.maplocalleader = " "
 
+local mason_bin = vim.fn.stdpath("data") .. "/mason/bin"
+local path = vim.env.PATH or ""
+if not string.find(path, mason_bin, 1, true) then
+    vim.env.PATH = mason_bin .. ":" .. path
+end
+
 local opt = vim.opt
 opt.number = true
 opt.relativenumber = true
@@ -28,4 +34,3 @@ opt.timeoutlen = 400
 
 opt.clipboard = "unnamedplus"
 opt.undofile = true
-
diff --git a/.config/nvim/lua/plugins/cmp.lua b/.config/nvim/lua/plugins/cmp.lua
index aa948a1..5d138df 100644
--- a/.config/nvim/lua/plugins/cmp.lua
+++ b/.config/nvim/lua/plugins/cmp.lua
@@ -65,4 +65,3 @@ return {
     end,
   },
 }
-
diff --git a/.config/nvim/lua/plugins/core.lua b/.config/nvim/lua/plugins/core.lua
index ed3b238..ec2d80a 100644
--- a/.config/nvim/lua/plugins/core.lua
+++ b/.config/nvim/lua/plugins/core.lua
@@ -1,15 +1,13 @@
 return {
-    { "nvim-lua/plenary.nvim",   lazy = true },
+    { "nvim-lua/plenary.nvim",  lazy = true },
 
-    { "folke/which-key.nvim",    event = "VeryLazy",    opts = {} },
+    { "folke/which-key.nvim",   event = "VeryLazy",    opts = {} },
 
-    { "numToStr/Comment.nvim",   event = "VeryLazy",    opts = {} },
+    { "numToStr/Comment.nvim",  event = "VeryLazy",    opts = {} },
 
-    { "kylechui/nvim-surround",  event = "VeryLazy",    opts = {} },
+    { "kylechui/nvim-surround", event = "VeryLazy",    opts = {} },
 
-    { "windwp/nvim-autopairs",   event = "InsertEnter", opts = {} },
+    { "windwp/nvim-autopairs",  event = "InsertEnter", opts = {} },
 
-    { "lewis6991/gitsigns.nvim", event = "VeryLazy",    opts = {} },
-
-    { 'wakatime/vim-wakatime',   lazy = false },
+    { "wakatime/vim-wakatime",  lazy = false },
 }
diff --git a/.config/nvim/lua/plugins/devops.lua b/.config/nvim/lua/plugins/devops.lua
new file mode 100644
index 0000000..362c71d
--- /dev/null
+++ b/.config/nvim/lua/plugins/devops.lua
@@ -0,0 +1,22 @@
+return {
+    {
+        "towolf/vim-helm",
+        lazy = false,
+    },
+    {
+        "hashivim/vim-terraform",
+        ft = { "terraform", "hcl" },
+    },
+    {
+        "ekalinin/Dockerfile.vim",
+        ft = { "dockerfile" },
+    },
+    {
+        "pearofducks/ansible-vim",
+        lazy = false,
+    },
+    {
+        "b0o/schemastore.nvim",
+        lazy = true,
+    },
+}
diff --git a/.config/nvim/lua/plugins/explorer.lua b/.config/nvim/lua/plugins/explorer.lua
new file mode 100644
index 0000000..154904b
--- /dev/null
+++ b/.config/nvim/lua/plugins/explorer.lua
@@ -0,0 +1,22 @@
+return {
+    {
+        "nvim-neo-tree/neo-tree.nvim",
+        branch = "v3.x",
+        cmd = "Neotree",
+        dependencies = {
+            "nvim-lua/plenary.nvim",
+            "nvim-tree/nvim-web-devicons",
+            "MunifTanjim/nui.nvim",
+        },
+        opts = {
+            sources = { "filesystem", "buffers", "git_status" },
+            close_if_last_window = true,
+            filesystem = {
+                follow_current_file = { enabled = true },
+                hijack_netrw_behavior = "open_default",
+                use_libuv_file_watcher = true,
+            },
+            window = { width = 32 },
+        },
+    },
+}
diff --git a/.config/nvim/lua/plugins/git.lua b/.config/nvim/lua/plugins/git.lua
new file mode 100644
index 0000000..c179981
--- /dev/null
+++ b/.config/nvim/lua/plugins/git.lua
@@ -0,0 +1,48 @@
+return {
+    {
+        "lewis6991/gitsigns.nvim",
+        event = { "BufReadPre", "BufNewFile" },
+        opts = {
+            on_attach = function(bufnr)
+                local gs = package.loaded.gitsigns
+                local map = function(mode, lhs, rhs, desc)
+                    vim.keymap.set(mode, lhs, rhs, { buffer = bufnr, desc = desc })
+                end
+
+                map("n", "]h", gs.next_hunk, "Next hunk")
+                map("n", "[h", gs.prev_hunk, "Prev hunk")
+                map("n", "<leader>hs", gs.stage_hunk, "Stage hunk")
+                map("n", "<leader>hS", gs.stage_buffer, "Stage buffer")
+                map("n", "<leader>hr", gs.reset_hunk, "Reset hunk")
+                map("n", "<leader>hR", gs.reset_buffer, "Reset buffer")
+                map("n", "<leader>hp", gs.preview_hunk, "Preview hunk")
+                map("n", "<leader>hb", gs.blame_line, "Blame line")
+                map("n", "<leader>hd", gs.diffthis, "Diff this")
+                map("n", "<leader>hD", function() gs.diffthis("~") end, "Diff this ~")
+                map("n", "<leader>ht", gs.toggle_current_line_blame, "Toggle line blame")
+            end,
+        },
+    },
+
+    {
+        "tpope/vim-fugitive",
+        cmd = { "Git", "G", "Gdiffsplit", "Gvdiffsplit", "Gedit" },
+    },
+
+    {
+        "sindrets/diffview.nvim",
+        cmd = { "DiffviewOpen", "DiffviewClose", "DiffviewFileHistory" },
+    },
+
+    {
+        "kdheepak/lazygit.nvim",
+        cmd = {
+            "LazyGit",
+            "LazyGitConfig",
+            "LazyGitCurrentFile",
+            "LazyGitFilter",
+            "LazyGitFilterCurrentFile",
+        },
+        dependencies = { "nvim-lua/plenary.nvim" },
+    },
+}
diff --git a/.config/nvim/lua/plugins/lsp.lua b/.config/nvim/lua/plugins/lsp.lua
index 2577be5..62340b1 100644
--- a/.config/nvim/lua/plugins/lsp.lua
+++ b/.config/nvim/lua/plugins/lsp.lua
@@ -1,79 +1,172 @@
 local function lsp_keymaps(ev)
-  local buf = ev.buf
-  local map = function(mode, lhs, rhs, desc)
-    vim.keymap.set(mode, lhs, rhs, { buffer = buf, desc = desc })
-  end
+    local buf = ev.buf
+    local map = function(mode, lhs, rhs, desc)
+        vim.keymap.set(mode, lhs, rhs, { buffer = buf, desc = desc })
+    end
 
-  map("n", "K", vim.lsp.buf.hover, "Hover")
-  map("n", "gd", vim.lsp.buf.definition, "Go to definition")
-  map("n", "gD", vim.lsp.buf.declaration, "Go to declaration")
-  map("n", "gr", vim.lsp.buf.references, "References")
-  map("n", "gi", vim.lsp.buf.implementation, "Implementation")
-  map("n", "<leader>rn", vim.lsp.buf.rename, "Rename")
-  map("n", "<leader>ca", vim.lsp.buf.code_action, "Code action")
+    map("n", "K", vim.lsp.buf.hover, "Hover")
+    map("n", "gd", vim.lsp.buf.definition, "Go to definition")
+    map("n", "gD", vim.lsp.buf.declaration, "Go to declaration")
+    map("n", "gr", vim.lsp.buf.references, "References")
+    map("n", "gi", vim.lsp.buf.implementation, "Implementation")
+    map("n", "<leader>rn", vim.lsp.buf.rename, "Rename")
+    map("n", "<leader>ca", vim.lsp.buf.code_action, "Code action")
 
-  if vim.lsp.inlay_hint then
-    pcall(vim.lsp.inlay_hint.enable, true, { bufnr = buf })
-  end
+    if vim.lsp.inlay_hint then
+        pcall(vim.lsp.inlay_hint.enable, true, { bufnr = buf })
+    end
 end
 
 return {
-  { "williamboman/mason.nvim", cmd = "Mason", opts = {} },
+    { "williamboman/mason.nvim", cmd = "Mason", opts = {} },
 
-  {
-    "williamboman/mason-lspconfig.nvim",
-    event = "VeryLazy",
-    dependencies = { "mason.nvim" },
-    opts = {
-      ensure_installed = { "clangd", "gopls", "pyright", "lua_ls" },
-      automatic_installation = true,
+    {
+        "williamboman/mason-lspconfig.nvim",
+        event = "VeryLazy",
+        dependencies = { "mason.nvim" },
+        opts = {
+            ensure_installed = {
+                "clangd",
+                "gopls",
+                "pyright",
+                "lua_ls",
+                "rust_analyzer",
+                "asm_lsp",
+                "terraformls",
+                "ansiblels",
+                "dockerls",
+                "yamlls",
+                "jsonls",
+                "helm_ls",
+            },
+            automatic_installation = true,
+        },
     },
-  },
 
-  -- Keep nvim-lspconfig installed (it provides server definitions),
-  -- but DO NOT call require("lspconfig") anymore.
-  {
-    "neovim/nvim-lspconfig",
-    event = { "BufReadPre", "BufNewFile" },
-    dependencies = { "hrsh7th/cmp-nvim-lsp" },
-    config = function()
-      vim.api.nvim_create_autocmd("LspAttach", { callback = lsp_keymaps })
+    -- Keep nvim-lspconfig installed (it provides server definitions),
+    -- but DO NOT call require("lspconfig") anymore.
+    {
+        "neovim/nvim-lspconfig",
+        event = { "BufReadPre", "BufNewFile" },
+        dependencies = { "hrsh7th/cmp-nvim-lsp", "b0o/schemastore.nvim" },
+        config = function()
+            vim.api.nvim_create_autocmd("LspAttach", { callback = lsp_keymaps })
 
-      local caps = vim.lsp.protocol.make_client_capabilities()
-      local ok, cmp_lsp = pcall(require, "cmp_nvim_lsp")
-      if ok then
-        caps = cmp_lsp.default_capabilities(caps)
-      end
+            local caps = vim.lsp.protocol.make_client_capabilities()
+            local ok, cmp_lsp = pcall(require, "cmp_nvim_lsp")
+            if ok then
+                caps = cmp_lsp.default_capabilities(caps)
+            end
 
-      vim.lsp.config("clangd", {
-        capabilities = caps,
-        cmd = { "clangd", "--background-index", "--clang-tidy", "--header-insertion=iwyu" },
-      })
+            vim.lsp.config("clangd", {
+                capabilities = caps,
+                cmd = { "clangd", "--background-index", "--clang-tidy", "--header-insertion=iwyu" },
+            })
 
-      vim.lsp.config("gopls", {
-        capabilities = caps,
-        settings = {
-          gopls = {
-            staticcheck = true,
-            analyses = { unusedparams = true, nilness = true, shadow = true },
-          },
-        },
-      })
+            vim.lsp.config("gopls", {
+                capabilities = caps,
+                settings = {
+                    gopls = {
+                        staticcheck = true,
+                        analyses = { unusedparams = true, nilness = true, shadow = true },
+                    },
+                },
+            })
 
-      vim.lsp.config("pyright", { capabilities = caps })
+            vim.lsp.config("pyright", { capabilities = caps })
 
-      vim.lsp.config("lua_ls", {
-        capabilities = caps,
-        settings = {
-          Lua = {
-            diagnostics = { globals = { "vim" } },
-            workspace = { checkThirdParty = false },
-          },
-        },
-      })
+            vim.lsp.config("lua_ls", {
+                capabilities = caps,
+                settings = {
+                    Lua = {
+                        diagnostics = { globals = { "vim" } },
+                        workspace = { checkThirdParty = false },
+                    },
+                },
+            })
 
-      vim.lsp.enable({ "clangd", "gopls", "pyright", "lua_ls" })
-    end,
-  },
+            vim.lsp.config("rust_analyzer", {
+                capabilities = caps,
+                settings = {
+                    ["rust-analyzer"] = {
+                        cargo = { allFeatures = true },
+                        checkOnSave = { command = "clippy" },
+                    },
+                },
+            })
+
+            vim.lsp.config("asm_lsp", {
+                capabilities = caps,
+                filetypes = { "asm", "nasm" },
+            })
+
+            vim.lsp.config("terraformls", { capabilities = caps })
+            vim.lsp.config("ansiblels", { capabilities = caps })
+            vim.lsp.config("dockerls", { capabilities = caps })
+
+            local k8s_schema = "https://raw.githubusercontent.com/yannh/kubernetes-json-schema/master/v1.27.0-standalone-strict/all.json"
+            local schemastore_ok, schemastore = pcall(require, "schemastore")
+            local yaml_schemas = {}
+            local json_schemas = {}
+
+            if schemastore_ok then
+                yaml_schemas = schemastore.yaml.schemas()
+                json_schemas = schemastore.json.schemas()
+            end
+
+            yaml_schemas[k8s_schema] = {
+                "k8s/**/*.yaml",
+                "k8s/**/*.yml",
+                "kubernetes/**/*.yaml",
+                "kubernetes/**/*.yml",
+                "*.k8s.yaml",
+                "*.k8s.yml",
+            }
+
+            yaml_schemas["https://json.schemastore.org/kustomization.json"] = {
+                "kustomization.yaml",
+                "kustomization.yml",
+            }
+
+            vim.lsp.config("yamlls", {
+                capabilities = caps,
+                settings = {
+                    yaml = {
+                        validate = true,
+                        format = { enable = true },
+                        schemaStore = { enable = false, url = "" },
+                        schemas = yaml_schemas,
+                    },
+                },
+            })
+
+            vim.lsp.config("jsonls", {
+                capabilities = caps,
+                settings = {
+                    json = {
+                        validate = { enable = true },
+                        schemaStore = { enable = false, url = "" },
+                        schemas = json_schemas,
+                    },
+                },
+            })
+
+            vim.lsp.config("helm_ls", { capabilities = caps })
+
+            vim.lsp.enable({
+                "clangd",
+                "gopls",
+                "pyright",
+                "lua_ls",
+                "rust_analyzer",
+                "asm_lsp",
+                "terraformls",
+                "ansiblels",
+                "dockerls",
+                "yamlls",
+                "jsonls",
+                "helm_ls",
+            })
+        end,
+    },
 }
-
diff --git a/.config/nvim/lua/plugins/tooling.lua b/.config/nvim/lua/plugins/tooling.lua
index 67a7cfd..87bb740 100644
--- a/.config/nvim/lua/plugins/tooling.lua
+++ b/.config/nvim/lua/plugins/tooling.lua
@@ -1,46 +1,47 @@
 return {
-  -- formatting
-  {
-    "stevearc/conform.nvim",
-    event = { "BufReadPre", "BufNewFile" },
-    opts = {
-      format_on_save = { timeout_ms = 1500, lsp_fallback = true },
-      formatters_by_ft = {
-        c = { "clang_format" },
-        cpp = { "clang_format" },
-        go = { "gofmt", "goimports" },
-        python = { "isort", "black" },
-        lua = { "stylua" },
-        json = { "prettier" },
-        yaml = { "prettier" },
-        markdown = { "prettier" },
-      },
-    },
-    config = function(_, opts)
-      require("conform").setup(opts)
-      vim.keymap.set("n", "<leader>f", function()
-        require("conform").format({ lsp_fallback = true })
-      end, { desc = "Format buffer" })
-    end,
-  },
-
-  -- linting (optional but nice)
-  {
-    "mfussenegger/nvim-lint",
-    event = { "BufReadPost", "BufNewFile" },
-    config = function()
-      local lint = require("lint")
-      lint.linters_by_ft = {
-        python = { "flake8" },
-        go = { "golangcilint" },
-      }
-
-      vim.api.nvim_create_autocmd({ "BufWritePost", "InsertLeave" }, {
-        callback = function()
-          lint.try_lint()
+    -- formatting
+    {
+        "stevearc/conform.nvim",
+        event = { "BufReadPre", "BufNewFile" },
+        opts = {
+            format_on_save = { timeout_ms = 1500, lsp_fallback = true },
+            formatters_by_ft = {
+                c = { "clang_format" },
+                cpp = { "clang_format" },
+                go = { "gofmt", "goimports" },
+                terraform = { "terraform_fmt" },
+                rust = { "rustfmt" },
+                python = { "isort", "black" },
+                lua = { "stylua" },
+                json = { "prettier" },
+                yaml = { "prettier" },
+                markdown = { "prettier" },
+            },
+        },
+        config = function(_, opts)
+            require("conform").setup(opts)
+            vim.keymap.set("n", "<leader>f", function()
+                require("conform").format({ lsp_fallback = true })
+            end, { desc = "Format buffer" })
         end,
-      })
-    end,
-  },
-}
+    },
 
+    -- linting (optional but nice)
+    {
+        "mfussenegger/nvim-lint",
+        event = { "BufReadPost", "BufNewFile" },
+        config = function()
+            local lint = require("lint")
+            lint.linters_by_ft = {
+                python = { "flake8" },
+                go = { "golangcilint" },
+            }
+
+            vim.api.nvim_create_autocmd({ "BufWritePost", "InsertLeave" }, {
+                callback = function()
+                    lint.try_lint()
+                end,
+            })
+        end,
+    },
+}
diff --git a/.config/nvim/lua/plugins/treesitter.lua b/.config/nvim/lua/plugins/treesitter.lua
index efaf883..95b18af 100644
--- a/.config/nvim/lua/plugins/treesitter.lua
+++ b/.config/nvim/lua/plugins/treesitter.lua
@@ -1,23 +1,23 @@
 return {
-  {
-    "nvim-treesitter/nvim-treesitter",
-    build = ":TSUpdate",
-    event = { "BufReadPost", "BufNewFile" },
-    opts = {
-      ensure_installed = {
-        "c", "cpp", "go", "python", "lua",
-        "bash", "json", "yaml", "toml",
-        "markdown", "markdown_inline",
-        "regex", "vim", "vimdoc",
-      },
-      auto_install = true,
-      sync_install = false,
-      highlight = { enable = true },
-      indent = { enable = true },
+    {
+        "nvim-treesitter/nvim-treesitter",
+        build = ":TSUpdate",
+        event = { "BufReadPost", "BufNewFile" },
+        opts = {
+            ensure_installed = {
+                "c", "cpp", "go", "rust", "python", "lua", "asm", "nasm",
+                "terraform", "hcl", "dockerfile",
+                "bash", "json", "yaml", "toml",
+                "markdown", "markdown_inline",
+                "regex", "vim", "vimdoc",
+            },
+            auto_install = true,
+            sync_install = false,
+            highlight = { enable = true },
+            indent = { enable = true },
+        },
+        config = function(_, opts)
+            require("nvim-treesitter").setup(opts)
+        end,
     },
-    config = function(_, opts)
-      require("nvim-treesitter").setup(opts)
-    end,
-  },
 }
-
diff --git a/.config/nvim/lua/plugins/ui.lua b/.config/nvim/lua/plugins/ui.lua
index 42eadb9..f20b829 100644
--- a/.config/nvim/lua/plugins/ui.lua
+++ b/.config/nvim/lua/plugins/ui.lua
@@ -38,4 +38,3 @@ return {
     },
   },
 }
-
diff --git a/.config/nvim/nvim b/.config/nvim/nvim
deleted file mode 120000
index 59fb84e..0000000
--- a/.config/nvim/nvim
+++ /dev/null
@@ -1 +0,0 @@
-/Users/itq/dotfiles/.config/nvim
\ No newline at end of file