🏡 my personal home lab
optimize for emmc
+46
-4
+46
-4
modules/common.nix
+46
-4
modules/common.nix
···
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];
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nixpkgs.config.allowUnfree = true;
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-
nix.settings.experimental-features = [
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-
"nix-command"
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-
"flakes"
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-
];
18
+
nix = {
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+
settings = {
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+
experimental-features = [
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+
"nix-command"
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+
"flakes"
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+
];
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+
auto-optimise-store = true;
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+
};
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+
gc = {
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+
automatic = true;
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+
dates = "weekly";
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+
options = "--delete-older-than 7d";
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+
};
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+
};
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# Set your time zone.
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time.timeZone = "Europe/Zurich";
···
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};
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};
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};
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+
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+
# eMMC optimizations
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+
# don't write access time to save ssd and commit every 30sec
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+
# (risk of losing 30sec of data on crash)
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+
fileSystems."/".options = [
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+
"noatime"
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+
"commit=30"
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+
];
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+
services.fstrim = {
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+
enable = true;
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+
interval = "weekly";
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+
};
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+
# no swap
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+
swapDevices = [ ];
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+
# systemd logs in ram
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+
services.journald.extraConfig = ''
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+
Storage=volatile
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+
RuntimeMaxUse=30M
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+
'';
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+
# /tmp in ram
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+
boot.tmp = {
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+
useTmpfs = true;
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+
tmpfsSize = "25%";
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+
};
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+
# don't write crash dumps
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+
systemd.coredump.extraConfig = ''
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+
Storage=none
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+
ProcessSizeMax=0
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+
'';
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+
# don't build man pages
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+
documentation.enable = false;
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+
documentation.man.generateCaches = false;
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# mount synology nas nfs
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boot.supportedFilesystems = [ "nfs" ];