home: tmux: increase history scrollback

Even *longer*.

flake.lock

@@ -159,11 +159,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1751429452,
-        "narHash": "sha256-4s5vRtaqdNhVBnbOWOzBNKrRa0ShQTLoEPjJp3joeNI=",
+        "lastModified": 1752467539,
+        "narHash": "sha256-4kaR+xmng9YPASckfvIgl5flF/1nAZOplM+Wp9I5SMI=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "df12269039dcf752600b1bcc176bacf2786ec384",
+        "rev": "1e54837569e0b80797c47be4720fab19e0db1616",
         "type": "github"
       },
       "original": {
@@ -175,11 +175,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1751952840,
-        "narHash": "sha256-SIkjQb9PPGvR/EcZAU8UZEnO9dwY2Z/BrDWgtyZd7OA=",
+        "lastModified": 1752480373,
+        "narHash": "sha256-JHQbm+OcGp32wAsXTE/FLYGNpb+4GLi5oTvCxwSoBOA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "27278798fe68d7f81131dd7ab62b8ea2b795cd56",
+        "rev": "62e0f05ede1da0d54515d4ea8ce9c733f12d9f08",
         "type": "github"
       },
       "original": {

modules/home/tmux/default.nix

@@ -48,7 +48,7 @@ in
     keyMode = "vi"; # Home-row keys and other niceties
     clock24 = true; # I'm one of those heathens
     escapeTime = 0; # Let vim do its thing instead
-    historyLimit = 100000; # Bigger buffer
+    historyLimit = 1000000; # Bigger buffer
     mouse = false; # I dislike mouse support
     focusEvents = true; # Report focus events
     terminal = "tmux-256color"; # I want accurate termcap info