Add filesystems.nix to avoid modifying hardware-config.nix

configuration.nix

@@ -11,6 +11,9 @@
 
   To fix problems sometimes:
   sudo nixos-rebuild switch -I nixos-config=/etc/nixos/configuration.nix
+
+  To make an ISO:
+  sudo nixos-rebuild build-image
 */
 let
   nixtamal = import ./tamal {
@@ -45,6 +48,7 @@ in
     [
       ./local.nix
       ./hardware-configuration.nix # Results of the hardware scan ("nixos-generate-config" command)
+      ./modules/filesystems.nix
       "${nixtamal.home-manager}/nixos"
       "${nixtamal.catppuccin}/modules/nixos"
       "${nixtamal.nix-cachyos-settings}/module.nix"

local.nix

@@ -42,7 +42,7 @@ in
   boot.loader.limine.extraEntries = lib.mkIf (!isLaptop) ''
     /Windows
       protocol: efi
-      path: uuid(F19E62C8-6ED1-4482-976A-6CCF5F561FDD):/EFI/Microsoft/Boot/bootmgfw.efi
+      path: label(windows_efi):/EFI/Microsoft/Boot/bootmgfw.efi
   '';
 
   powerManagement.cpuFreqGovernor = if !isLaptop then "performance" else "schedutil";
@@ -55,22 +55,7 @@ in
     };
   };
 
-  fileSystems."/".options = [ "noatime" "discard" ];
+  fileSystems."/".options = [ "noatime" ];
-  # Note: for f2fs, create it with "sudo fsck.f2fs -O extra_attr,flexible_inline_xattr,inode_checksum,sb_checksum,compression,lost_found /dev/sdxY"
-  /* And add these to mount options in hardware-configuration.nix
-  options = [
-    "compress_algorithm=lzo-rle"
-    "compress_extension=*"
-    #"nocompress_extension=avif,bmp,gif,heic,heif,ico,jpe,jpeg,jpg,png,svg,tif,tiff,webp,3gp,avi,flv,m4v,mkv,mov,mp4,mpeg,mpg,webm,wmv,aac,flac,m4a,mid,midi,mp3,ogg,opus,wav,wma,7z,bz2,gz,rar,tar,tgz,xz,zip,zst,docx,odt,odp,ods,pptx,xlsx,pdf,db,gpg,key,p12,pem,sqlite,sqlite3,enc,aab,apk,appimage,bin,deb,dll,elf,exe,jar,so,rpm,img,iso,qcow2,vdi,vhd,vmdk,otf,ttf,class,dump,log,swp,tmp,bak,cache,part,old,new,core"
-    "compress_chksum"
-    "atgc"
-    "gc_merge"
-    "checkpoint=enable"
-    "checkpoint_merge"
-    "fsync_mode=posix"
-    "nat_bits"
-  ];
-  */
 
   networking.hostName = if !isLaptop then "lizard" else "lizard-portable";
 }

modules/filesystems.nix

@@ -0,0 +1,25 @@
+{ config, lib, ... }:
+
+{
+  # Note: for f2fs, create it with "sudo fsck.f2fs -O extra_attr,flexible_inline_xattr,inode_checksum,sb_checksum,compression,lost_found /dev/sdxY"
+  fileSystems."/".options = lib.mkIf (config.fileSystems."/".fsType == "f2fs")
+    (lib.mkAfter [
+      "discard" # Better (on f2fs) than fstrim
+      "X-fstrim.notrim" # To avoid fstrim
+      "compress_algorithm=lzo-rle"
+      "compress_extension=*"
+      #"nocompress_extension=avif,bmp,gif,heic,heif,ico,jpe,jpeg,jpg,png,svg,tif,tiff,webp,3gp,avi,flv,m4v,mkv,mov,mp4,mpeg,mpg,webm,wmv,aac,flac,m4a,mid,midi,mp3,ogg,opus,wav,wma,7z,bz2,gz,rar,tar,tgz,xz,zip,zst,docx,odt,odp,ods,pptx,xlsx,pdf,db,gpg,key,p12,pem,sqlite,sqlite3,enc,aab,apk,appimage,bin,deb,dll,elf,exe,jar,so,rpm,img,iso,qcow2,vdi,vhd,vmdk,otf,ttf,class,dump,log,swp,tmp,bak,cache,part,old,new,core"
+      "compress_chksum"
+      "atgc"
+      "gc_merge"
+      "checkpoint=enable"
+      "checkpoint_merge"
+      "fsync_mode=posix"
+      "nat_bits"
+    ]);
+
+  services.fstrim.enable = true;
+
+  # Link to nix-hardware configs in case I get a new laptop some day:
+  # https://github.com/NixOS/nixos-hardware
+}