From c849d7c36e4b0922db0c0794e1a7a0357bc20aa3 Mon Sep 17 00:00:00 2001
From: Astro <astro@spaceboyz.net>
Date: Thu, 22 Feb 2024 13:10:24 +0100
Subject: [PATCH] dacbert: try enabling fscache for nfs

---
 hosts/dacbert/default.nix | 2 +-
 modules/rpi-netboot.nix   | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/hosts/dacbert/default.nix b/hosts/dacbert/default.nix
index b0be343e..32a35783 100644
--- a/hosts/dacbert/default.nix
+++ b/hosts/dacbert/default.nix
@@ -107,7 +107,7 @@ in
   fileSystems."/" = {
     device = "${hostRegistry.nfsroot.ip4}:/var/lib/nfsroot/dacbert";
     fsType = "nfs";
-    options = [ "nfsvers=3" "proto=tcp" "nolock" "hard" "async" "rw" ];
+    options = [ "nfsvers=3" "proto=tcp" "nolock" "hard" "async" "rw" "fsc" ];
   };
 
   networking = {
diff --git a/modules/rpi-netboot.nix b/modules/rpi-netboot.nix
index 6f6481ce..713fa848 100644
--- a/modules/rpi-netboot.nix
+++ b/modules/rpi-netboot.nix
@@ -76,4 +76,10 @@
 
     echo "dwc_otg.lpm_enable=0 init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams}" > $out/cmdline.txt
   '';
+
+  # NFS caching
+  services.cachefilesd = {
+    enable = true;
+    cacheDir = "/tmp/fscache";
+  };
 }