diff --git a/config/nvim/lua/plugins/dev.lua b/config/nvim/lua/plugins/dev.lua
index af5300d..53207ba 100644
--- a/config/nvim/lua/plugins/dev.lua
+++ b/config/nvim/lua/plugins/dev.lua
@@ -350,6 +350,12 @@ return {
                     synctex_pdf[args.data.bufnr] = args.data.output
                 end,
             })
+            vim.api.nvim_create_autocmd('User', {
+                pattern = 'PreviewWatchingStopped',
+                callback = function(args)
+                    synctex_pdf[args.data.bufnr] = nil
+                end,
+            })
             vim.api.nvim_create_autocmd('CursorHold', {
                 group = vim.api.nvim_create_augroup(
                     'APreviewSynctex',
diff --git a/config/nvim/plugin/options.lua b/config/nvim/plugin/options.lua
index d9b0750..3233b55 100644
--- a/config/nvim/plugin/options.lua
+++ b/config/nvim/plugin/options.lua
@@ -38,6 +38,7 @@ vim.o.list = true
 vim.opt.listchars = {
     space = ' ',
     trail = '·',
+    tab = '··',
 }
 
 vim.opt.matchpairs:append('<:>')
diff --git a/flake.lock b/flake.lock
index ba1cfa1..d2796a6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1773106201,
-        "narHash": "sha256-p5JuCe5wywjp2oanroCOzH+kzKCFt7rpJDg+lVykSjw=",
+        "lastModified": 1773451814,
+        "narHash": "sha256-ncqkZfGjNMNjnUHyBPqPCuM1IdlfbP+PTDw4eoJwbYM=",
         "owner": "ryoppippi",
         "repo": "claude-code-overlay",
-        "rev": "a6293ea4b12f65545c21357c1df4dcb885f0de6e",
+        "rev": "0d9fb590af016130d71cf810ade72cdd7ab60f4c",
         "type": "github"
       },
       "original": {
@@ -25,11 +25,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1773025010,
-        "narHash": "sha256-khlHllTsovXgT2GZ0WxT4+RvuMjNeR5OW0UYeEHPYQo=",
+        "lastModified": 1773506317,
+        "narHash": "sha256-qWKbLUJpavIpvOdX1fhHYm0WGerytFHRoh9lVck6Bh0=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "7b9f7f88ab3b339f8142dc246445abb3c370d3d3",
+        "rev": "878ec37d6a8f52c6c801d0e2a2ad554c75b9353c",
         "type": "github"
       },
       "original": {
@@ -66,11 +66,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1773179137,
-        "narHash": "sha256-EdW2bwzlfme0vbMOcStnNmKlOAA05Bp6su2O8VLGT0k=",
+        "lastModified": 1773666768,
+        "narHash": "sha256-7XvLaFMQOsfWrK+msO0Oqe5CeNYsAlSGjrl5y14gA6w=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "3f98e2bbc661ec0aaf558d8a283d6955f05f1d09",
+        "rev": "ca53f083dbd4c83dd5dca8a3099374708e155c32",
         "type": "github"
       },
       "original": {
@@ -87,11 +87,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1772330611,
-        "narHash": "sha256-UZjPc/d5XRxvjDbk4veAO4XFdvx6BUum2l40V688Xq8=",
+        "lastModified": 1773422513,
+        "narHash": "sha256-MPjR48roW7CUMU6lu0+qQGqj92Kuh3paIulMWFZy+NQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "58fd7ff0eec2cda43e705c4c0585729ec471d400",
+        "rev": "ef12a9a2b0f77c8fa3dda1e7e494fca668909056",
         "type": "github"
       },
       "original": {
@@ -107,11 +107,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1773187529,
-        "narHash": "sha256-g+SvIUF9he6xFI5d3752wNAsOcbKBg6a0HpX16ggKY4=",
+        "lastModified": 1773619513,
+        "narHash": "sha256-2xCVm8ajE9pNngv489dPKOUa5P0tlmJRwgVPjhy7c8w=",
         "owner": "nix-community",
         "repo": "neovim-nightly-overlay",
-        "rev": "2c00dfe845f47f9cdab706372e82613d233e5c85",
+        "rev": "07227cc79efb9c1744ec99d51f98c7a3584a62d2",
         "type": "github"
       },
       "original": {
@@ -123,11 +123,11 @@
     "neovim-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1773186516,
-        "narHash": "sha256-IPthgh8IUiFme222fCPbFzxZHDmvDY9ibNZ4MS3v+PA=",
+        "lastModified": 1773615769,
+        "narHash": "sha256-qU71k2BTckpJDHpjxaU4aQwl14+iApnAycq+IJDTmO0=",
         "owner": "neovim",
         "repo": "neovim",
-        "rev": "3a7ade847f10e22af6cecf92046eee238d6b21f6",
+        "rev": "16f7440cc7b59b7e5c79f593fedc117d2d16d7dd",
         "type": "github"
       },
       "original": {
@@ -138,11 +138,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1772972630,
-        "narHash": "sha256-mUJxsNOrBMNOUJzN0pfdVJ1r2pxeqm9gI/yIKXzVVbk=",
+        "lastModified": 1773533765,
+        "narHash": "sha256-qonGfS2lzCgCl59Zl63jF6dIRRpvW3AJooBGMaXjHiY=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "3966ce987e1a9a164205ac8259a5fe8a64528f72",
+        "rev": "f8e82243fd601afb9f59ad230958bd073795cbfe",
         "type": "github"
       },
       "original": {
@@ -169,11 +169,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1772956932,
-        "narHash": "sha256-M0yS4AafhKxPPmOHGqIV0iKxgNO8bHDWdl1kOwGBwRY=",
+        "lastModified": 1773507054,
+        "narHash": "sha256-Q8U5VXgrcxmCxPtCCJCIZkcAX3FCZwGh1GNVIXxMND0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "608d0cadfed240589a7eea422407a547ad626a14",
+        "rev": "e80236013dc8b77aa49ca90e7a12d86f5d8d64c9",
         "type": "github"
       },
       "original": {
@@ -185,11 +185,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1773110118,
-        "narHash": "sha256-mPAG8phMbCReKSiKAijjjd3v7uVcJOQ75gSjGJjt/Rk=",
+        "lastModified": 1773597492,
+        "narHash": "sha256-hQ284SkIeNaeyud+LS0WVLX+WL2rxcVZLFEaK0e03zg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e607cb5360ff1234862ac9f8839522becb853bb9",
+        "rev": "a07d4ce6bee67d7c838a8a5796e75dff9caa21ef",
         "type": "github"
       },
       "original": {
@@ -201,11 +201,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1772198003,
-        "narHash": "sha256-I45esRSssFtJ8p/gLHUZ1OUaaTaVLluNkABkk6arQwE=",
+        "lastModified": 1773389992,
+        "narHash": "sha256-wvfdLLWJ2I9oEpDd9PfMA8osfIZicoQ5MT1jIwNs9Tk=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "dd9b079222d43e1943b6ebd802f04fd959dc8e61",
+        "rev": "c06b4ae3d6599a672a6210b7021d699c351eebda",
         "type": "github"
       },
       "original": {
@@ -232,11 +232,11 @@
         "nixpkgs": "nixpkgs_4"
       },
       "locked": {
-        "lastModified": 1773225617,
-        "narHash": "sha256-IT0n3jJgf4M7U0EuZJ2XJwXBmSJVVK3auqWDGeHGMzY=",
+        "lastModified": 1773661718,
+        "narHash": "sha256-MYm1EKp/gbBi9wMEf7Lx0agIVnej/P61sg97EruWzrU=",
         "owner": "0xc000022070",
         "repo": "zen-browser-flake",
-        "rev": "413a22ab7acf848ed4e20c3f47ea96ccd4788518",
+        "rev": "3ac6ea223b32ff63c45e3577712df991a35aaf33",
         "type": "github"
       },
       "original": {