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nixos/flake.nix

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Initial flake implementation For now, simply copied current configuration.nix and hardware-configuration.nix to hostname specific directory. Made minor modifications to remove input impurity from hardware-configuration.nix (<nixpkgs> to 4{modulesPath}). Created flake.nix to import the configuration.nix and just build it. Referred to this guy : https://github.com/MatthewCroughan/nixcfg
2020-11-03 15:41:12 +05:30
{
Enable nvidia and move nvidia config to separate file - Enable nvidia GPU in sync-mode At least one game did not work well enough on Intel - Move nvidia config to separate file (nvidia.nix) - Refactor and simplify nvidia config enabling/mode-changing of nvidia can be done via two simple top-level variables instead of changing interdependent booleans independently. select GPU driver based on top level variable Add `nvidia-offload' environment variable shell to env based on top-level variable
2022-03-27 22:41:51 +05:30
description = "NixOS configuration (flake edition)";
Initial flake implementation For now, simply copied current configuration.nix and hardware-configuration.nix to hostname specific directory. Made minor modifications to remove input impurity from hardware-configuration.nix (<nixpkgs> to 4{modulesPath}). Created flake.nix to import the configuration.nix and just build it. Referred to this guy : https://github.com/MatthewCroughan/nixcfg
2020-11-03 15:41:12 +05:30
mbsync + msmtp + mu setup via home-manager Initial setup to email from within emacs. That required setting up above stuff, detailed below: mbsync : sync maildir with email host/provider (gmail) mu : index and search maildir msmtp : send mail All of the above have good module under home-manager, making it *relatively* straightforward to set the whole thing up.
2021-07-20 16:51:32 +05:30
inputs = {
EXPERIMENT: Set up nixpkgs-unfree as root input as well as cachix nixpkgs-unfree supposedly provides builds for non-free, but redistributable packages that cache.nixos.org does not build. Along with cuda-maintainers, it should reduce the burden for using heavy packages for machine learning quite a bit. So, lets see how this one goes. I should also start checking how the machine learning story is with NixOS at all, it is rife with Python and Python has absolutely horrible ecosystem for managing dependencies.
2022-03-29 22:11:51 +05:30
nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
nixpkgs = {
url = "github:numtide/nixpkgs-unfree";
inputs.nixpkgs.follows = "nixpkgs-unstable";
};
mbsync + msmtp + mu setup via home-manager Initial setup to email from within emacs. That required setting up above stuff, detailed below: mbsync : sync maildir with email host/provider (gmail) mu : index and search maildir msmtp : send mail All of the above have good module under home-manager, making it *relatively* straightforward to set the whole thing up.
2021-07-20 16:51:32 +05:30
home-manager = {
url = "github:nix-community/home-manager";
inputs.nixpkgs.follows = "nixpkgs";
};
Use EmacsGcc package from emacs-overlay Use Emacs master branch with native compilation flag enabled. I tried Pgtk branch, but it is not always kept up to date with master (currently 3+ months behind) and could have some issues that aren't always tested. It does mean Wayland integration is imperfect, but right now it is good enough (with few minor annoyances). Emacs + Gcc (native-comp) native-comp is currently in upcoming release branch (28.0.50), while pgtk branch is yet to be merged. Using both above features is easily available with emacs-overlay provided by nix-community. I still haven't been able to get cachix build cache to work, so currrently this config builds full Emacs on machine. This extends system rebuild by 30+ minutes and reduces system useability for the same duration. Updating system frequently is not currently on my radar anyway, and I can probably stomach keeping the machine humming for 60+ minutes of system rebuild (compiling Emacs itself takes 25-30 min), as long as I do it less than once per week. Will see how it goes.
2021-10-29 16:25:07 +05:30
emacs-overlay = {
Revert "Temporarily pin emacs-overlay" This reverts commit 4fa3d1f70a45b3e1b4dfc6684b831a51633bff52.
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url = "github:nix-community/emacs-overlay";
inputs.nixpkgs.follows = "nixpkgs";
Use EmacsGcc package from emacs-overlay Use Emacs master branch with native compilation flag enabled. I tried Pgtk branch, but it is not always kept up to date with master (currently 3+ months behind) and could have some issues that aren't always tested. It does mean Wayland integration is imperfect, but right now it is good enough (with few minor annoyances). Emacs + Gcc (native-comp) native-comp is currently in upcoming release branch (28.0.50), while pgtk branch is yet to be merged. Using both above features is easily available with emacs-overlay provided by nix-community. I still haven't been able to get cachix build cache to work, so currrently this config builds full Emacs on machine. This extends system rebuild by 30+ minutes and reduces system useability for the same duration. Updating system frequently is not currently on my radar anyway, and I can probably stomach keeping the machine humming for 60+ minutes of system rebuild (compiling Emacs itself takes 25-30 min), as long as I do it less than once per week. Will see how it goes.
2021-10-29 16:25:07 +05:30
};
Setup secrets management using agenix agenix uses age (a utility + standard) that encrypts secrets using ssh key. This simplifies secrets management quite a bit compared to GPG (my attempts for which have failed so far). Changes included: - Encrypt all current keys (mail, backups) using age, configured via agenix - All encrypted keys are committed to git repo and decrypted during boot - None of the keys are used anywhere just yet. They will replace file paths in future commit after testing - Decrypted keys are available after boot under user name with read-only permissions at default agenix location (as of this commit) - The Nix variable path is provided by agenix and can be used instead of having to recreate - multiple keys can be specified for single key, but for now I am only using one For now, the code is dirty and can definitely use improvements. It is just at a place where it is all working right now. TODO: Get age + agenix in environment packages available at runtime in NixOS Links: - https://github.com/ryantm/agenix - https://github.com/hlissner/dotfiles
2022-02-22 03:01:29 +05:30
agenix = {
url = "github:ryantm/agenix";
inputs.nixpkgs.follows = "nixpkgs";
};
mbsync + msmtp + mu setup via home-manager Initial setup to email from within emacs. That required setting up above stuff, detailed below: mbsync : sync maildir with email host/provider (gmail) mu : index and search maildir msmtp : send mail All of the above have good module under home-manager, making it *relatively* straightforward to set the whole thing up.
2021-07-20 16:51:32 +05:30
};
Initial flake implementation For now, simply copied current configuration.nix and hardware-configuration.nix to hostname specific directory. Made minor modifications to remove input impurity from hardware-configuration.nix (<nixpkgs> to 4{modulesPath}). Created flake.nix to import the configuration.nix and just build it. Referred to this guy : https://github.com/MatthewCroughan/nixcfg
2020-11-03 15:41:12 +05:30
doom-emacs: Disable building doom-emacs config via Nix
2022-03-28 22:18:22 +05:30
outputs = { self, nixpkgs, home-manager, emacs-overlay, agenix, ... }: {
Initial flake implementation For now, simply copied current configuration.nix and hardware-configuration.nix to hostname specific directory. Made minor modifications to remove input impurity from hardware-configuration.nix (<nixpkgs> to 4{modulesPath}). Created flake.nix to import the configuration.nix and just build it. Referred to this guy : https://github.com/MatthewCroughan/nixcfg
2020-11-03 15:41:12 +05:30
nixosConfigurations = {
enterprise = nixpkgs.lib.nixosSystem {
system = "x86_64-linux";
mbsync + msmtp + mu setup via home-manager Initial setup to email from within emacs. That required setting up above stuff, detailed below: mbsync : sync maildir with email host/provider (gmail) mu : index and search maildir msmtp : send mail All of the above have good module under home-manager, making it *relatively* straightforward to set the whole thing up.
2021-07-20 16:51:32 +05:30
modules = [
Clean up, rearrange and add comments in flake.nix I could in theory just import all flake files from particular host, but so far there aren't a lot of files in there, and I like the explicitness, and central point of entry in flake.nix Not sure what went wrong the last time I tried it. This seems to be working, so I'll keep it and keep an eye for a while
2022-04-05 18:54:00 +05:30
# Overlays
Refactor some parts into separate files Move some logically independent and consisitent parts into separate modules (files): 1. Nix config : Package, experimental options, automatic garbage-collection config 2. Backups : Restic + rclone + systemd services for backup notifications This has reduced main configuration.nix by 100+ lines. These parts are also unlikely to be touched in tandem with other configuration and hence can be separated out.
2022-02-14 16:15:27 +05:30
{ nixpkgs.overlays = [ emacs-overlay.overlay ]; }
Clean up, rearrange and add comments in flake.nix I could in theory just import all flake files from particular host, but so far there aren't a lot of files in there, and I like the explicitness, and central point of entry in flake.nix Not sure what went wrong the last time I tried it. This seems to be working, so I'll keep it and keep an eye for a while
2022-04-05 18:54:00 +05:30
# Common
./nix.nix
./cachix.nix
# Modules and module config
agenix.nixosModules.age
./modules/agenix.nix
# Host-specific config
./hosts/enterprise/sound.nix
./hosts/enterprise/fish.nix
./hosts/enterprise/backup.nix
./hosts/enterprise/nvidia.nix
./hosts/enterprise/configuration.nix
# User-specific config : Home-manager
mbsync + msmtp + mu setup via home-manager Initial setup to email from within emacs. That required setting up above stuff, detailed below: mbsync : sync maildir with email host/provider (gmail) mu : index and search maildir msmtp : send mail All of the above have good module under home-manager, making it *relatively* straightforward to set the whole thing up.
2021-07-20 16:51:32 +05:30
home-manager.nixosModules.home-manager
{
home-manager.useGlobalPkgs = true;
home-manager.useUserPackages = true;
doom-emacs: Disable building doom-emacs config via Nix
2022-03-28 22:18:22 +05:30
home-manager.users.payas = import ./hosts/enterprise/home.nix;
mbsync + msmtp + mu setup via home-manager Initial setup to email from within emacs. That required setting up above stuff, detailed below: mbsync : sync maildir with email host/provider (gmail) mu : index and search maildir msmtp : send mail All of the above have good module under home-manager, making it *relatively* straightforward to set the whole thing up.
2021-07-20 16:51:32 +05:30
}
Clean up, rearrange and add comments in flake.nix I could in theory just import all flake files from particular host, but so far there aren't a lot of files in there, and I like the explicitness, and central point of entry in flake.nix Not sure what went wrong the last time I tried it. This seems to be working, so I'll keep it and keep an eye for a while
2022-04-05 18:54:00 +05:30
mbsync + msmtp + mu setup via home-manager Initial setup to email from within emacs. That required setting up above stuff, detailed below: mbsync : sync maildir with email host/provider (gmail) mu : index and search maildir msmtp : send mail All of the above have good module under home-manager, making it *relatively* straightforward to set the whole thing up.
2021-07-20 16:51:32 +05:30
];
Initial flake implementation For now, simply copied current configuration.nix and hardware-configuration.nix to hostname specific directory. Made minor modifications to remove input impurity from hardware-configuration.nix (<nixpkgs> to 4{modulesPath}). Created flake.nix to import the configuration.nix and just build it. Referred to this guy : https://github.com/MatthewCroughan/nixcfg
2020-11-03 15:41:12 +05:30
};
};
};
}
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