From 5e81e4814d6da25ce8531baf0bc2d23da7fc26b3 Mon Sep 17 00:00:00 2001
From: Azat Bahawi <azat@bahawi.net>
Date: Thu, 5 Jan 2023 04:22:04 +0300
Subject: 2023-01-05

---
 nixosConfigurations/eonwe/default.nix | 49 ++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 12 deletions(-)

(limited to 'nixosConfigurations/eonwe/default.nix')

diff --git a/nixosConfigurations/eonwe/default.nix b/nixosConfigurations/eonwe/default.nix
index a867837..f07aad3 100644
--- a/nixosConfigurations/eonwe/default.nix
+++ b/nixosConfigurations/eonwe/default.nix
@@ -15,6 +15,7 @@ with lib; {
 
     games = {
       lutris.enable = true;
+      minecraft.client.enable = true;
       steam.enable = true;
     };
     android.enable = true;
@@ -25,8 +26,12 @@ with lib; {
   };
 
   hm.programs = {
-    firefox.profiles.default.settings."media.ffmpeg.vaapi.enabled" = true;
+    # NOTE This produces very poor performance even though RX 6750 XT should
+    # handle VA-API hardware decoding for all major formats (including AV1) just
+    # fine.
+    firefox.profiles.default.settings."media.ffmpeg.vaapi.enabled" = false;
 
+    # Mostly just placebo. :^)
     mpv.config = {
       hwdec = "vdpau";
       vo = "gpu";
@@ -34,6 +39,15 @@ with lib; {
     };
   };
 
+  # Usually stuff that is going to be compiled on this machine is going to have
+  # parallelisation support enabled, so we will make sure that all cores are
+  # utilised and limit the job queue to one.
+  nix.extraOptions = ''
+    keep-going = true
+    max-jobs = 1
+    cores = 32
+  '';
+
   boot = {
     # Silence benign MCE errors:
     # ```
@@ -43,16 +57,26 @@ with lib; {
     # ```
     kernelParams = ["mce=nobootlog"];
 
-    initrd.availableKernelModules = [
-      "ahci"
-      "nvme"
-      "sd_mod"
-      "usb_storage"
-      "usbhid"
-      "xhci_pci"
-    ];
+    # The boot drive is Samsung SSD 980 PRO 2TB.
+    initrd.kernelModules = ["nvme"];
   };
 
+  # TODO Immutable `/' shire on ZFS datasets and snapshots.
+  #
+  # Opt-in:
+  # - /etc/NetworkManager
+  # - /etc/ssh
+  # - /home
+  # - /var/lib/bluetooth
+  # - /var/lib/iwd
+  # - /var/lib/log
+  #
+  # Investigate:
+  # - /var/lib/NetworkManager
+  # - /var/lib/cni
+  # - /var/lib/containers
+  # - /var/lib/qemu
+
   fileSystems = {
     "/boot" = {
       device = "/dev/disk/by-uuid/FF1E-9CFD";
@@ -66,7 +90,8 @@ with lib; {
     };
   };
 
-  # No swap space is declared here because the system already has 128Gb of RAM.
-  # I didn't manage to even hit 100Gb mark even when running large
-  # computations/compiling something big.
+  # No swap space is declared here because the system already has 128Gb of RAM. :^)
+  # I've only manage to hit around 100Gb mark when running large
+  # computations/compiling something big. Pretty sure that a hefty chunk of it
+  # was just residual cache and it wouldn't make me get to OOM situations.
 }
-- 
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