From fd27e13ef27640cc89eda53fdb0ca0380f5ab1be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Sun, 4 Jan 2026 22:14:25 +0100
Subject: [PATCH 1/5] nixos/system-nixconf: include best-effort {min,max}-free
 by default

---
 nix/nixosModules/common/system-nixconf.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nix/nixosModules/common/system-nixconf.nix b/nix/nixosModules/common/system-nixconf.nix
index 9a0d8783..fdfb8d20 100644
--- a/nix/nixosModules/common/system-nixconf.nix
+++ b/nix/nixosModules/common/system-nixconf.nix
@@ -8,6 +8,10 @@
     package = lib.mkDefault pkgs.nix;
 
     settings = {
+      # Try to have at least 10GB of space by default
+      min-free = lib.mkDefault (5 * 1024 * 1024 * 1024);
+      max-free = lib.mkDefault (10 * 1024 * 1024 * 1024);
+
       extra-substituters = [
         "https://nix-community.cachix.org"
       ];

From 717397d6fd1b2e55cfc16d1fe685dc03ed5ec8c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Mon, 5 Jan 2026 08:26:35 +0100
Subject: [PATCH 2/5] home/user-nixconf: update and remove cppnix option

---
 nix/homeModules/common/user-nixconf.nix | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/nix/homeModules/common/user-nixconf.nix b/nix/homeModules/common/user-nixconf.nix
index 9ca3a09e..5b22060b 100644
--- a/nix/homeModules/common/user-nixconf.nix
+++ b/nix/homeModules/common/user-nixconf.nix
@@ -26,10 +26,10 @@
         "flakes"
       ];
       allow-import-from-derivation = true;
-      keep-outputs = false; # Build time derivations and sources
-
-      http-connections = 50; # default: 25
-      max-substitution-jobs = 32; # default: 16
+      keep-build-log = true;
+      keep-going = true; # Continue even when some fails
+      keep-outputs = true; # Build time derivations and sources
+      warn-dirty = false;
     };
   };
 }

From 46983687c0439bb76d5b05aa2c6cef7f08717488 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Mon, 5 Jan 2026 08:41:20 +0100
Subject: [PATCH 3/5] vanadium/sane-nix: paralell build

---
 nix/configurations/vanadium/nixos/sane-nix.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/nix/configurations/vanadium/nixos/sane-nix.nix b/nix/configurations/vanadium/nixos/sane-nix.nix
index 83c080d8..83088437 100644
--- a/nix/configurations/vanadium/nixos/sane-nix.nix
+++ b/nix/configurations/vanadium/nixos/sane-nix.nix
@@ -10,4 +10,11 @@
     MemoryMax = "90%";
     OOMScoreAdjust = 500;
   };
+
+  # 16 Cores, 32 GB RAM
+  # split into 4 jobs with 4C/8G
+  nix.settings = {
+    cores = 2;
+    max-jobs = 4;
+  };
 }

From 317e43e9a055f46c9f49c8e36c3839e5d4c8132f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Mon, 5 Jan 2026 08:44:23 +0100
Subject: [PATCH 4/5] hetzner_benchmark/sane-nix: init

storage and memory protection
---
 .../hetzner_benchmark/nixos/sane-nix.nix      | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 nix/configurations/hetzner_benchmark/nixos/sane-nix.nix

diff --git a/nix/configurations/hetzner_benchmark/nixos/sane-nix.nix b/nix/configurations/hetzner_benchmark/nixos/sane-nix.nix
new file mode 100644
index 00000000..dc4e2f13
--- /dev/null
+++ b/nix/configurations/hetzner_benchmark/nixos/sane-nix.nix
@@ -0,0 +1,21 @@
+# Protect my system from running out of storage or memory
+{
+  # 500GB Storage
+  nix.settings = {
+    min-free = 20 * 1024 * 1024 * 1024;
+    max-free = 50 * 1024 * 1024 * 1024;
+  };
+
+  systemd.services.nix-daemon.serviceConfig = {
+    MemoryAccounting = true;
+    MemoryMax = "90%";
+    OOMScoreAdjust = 500;
+  };
+
+  # 12 Cores, 64 GB RAM
+  # split into 4 jobs with 3C/16G
+  nix.settings = {
+    cores = 3;
+    max-jobs = 4;
+  };
+}

From bf06325b6ef1cd9e16452c5b2c70b72ef3376cca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Mon, 5 Jan 2026 09:02:59 +0100
Subject: [PATCH 5/5] vanadium/ghostty: reduce scroll speed

---
 nix/configurations/vanadium/home/programs.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nix/configurations/vanadium/home/programs.nix b/nix/configurations/vanadium/home/programs.nix
index 19b98659..46351801 100644
--- a/nix/configurations/vanadium/home/programs.nix
+++ b/nix/configurations/vanadium/home/programs.nix
@@ -172,6 +172,7 @@
       settings = {
         font-size = 12; # sweet spot for framework 13
         command = lib.getExe config.programs.fish.package;
+        mouse-scroll-multiplier = 1;
       };
     };
     kitty = {