feat: devshells, formatting, zoxide

README.md

@@ -0,0 +1 @@
+# Nixos configuration

devshells/ocaml/flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1765762245,
+        "narHash": "sha256-3iXM/zTqEskWtmZs3gqNiVtRTsEjYAedIaLL0mSBsrk=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c8cfcd6ccd422e41cc631a0b73ed4d5a925c393d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-25.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

devshells/ocaml/flake.nix

@@ -0,0 +1,33 @@
+{
+  description = "OCaml nix-flake devshell.";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
+  };
+
+  outputs =
+    { self, nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+    in
+    {
+      devShells."${system}".default =
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+          };
+        in
+        pkgs.mkShell {
+          packages =
+            with pkgs;
+            with ocamlPackages;
+            [
+              findlib
+              ocaml
+              ocaml-lsp
+              ocamlformat
+              dune_3
+            ];
+        };
+    };
+}

devshells/why3/flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1765779637,
+        "narHash": "sha256-KJ2wa/BLSrTqDjbfyNx70ov/HdgNBCBBSQP3BIzKnv4=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "1306659b587dc277866c7b69eb97e5f07864d8c4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

devshells/why3/flake.nix

@@ -0,0 +1,31 @@
+{
+  description = "Why3 nix-flake devshell.";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+  };
+
+  outputs =
+    { self, nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+    in
+    {
+      devShells."${system}".default =
+        let
+          pkgs = import nixpkgs { inherit system; };
+        in
+        pkgs.mkShell {
+          packages = with pkgs; [
+            why3
+            alt-ergo
+            z3
+            cvc5
+          ];
+
+          shellHook = ''
+            why3 config detect
+          '';
+        };
+    };
+}

flake.nix

@@ -7,12 +7,15 @@
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { nixpkgs, home-manager, ... }: {
+  outputs =
+    { nixpkgs, home-manager, ... }:
+    {
       nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
           ./nixos/configuration.nix
-        home-manager.nixosModules.home-manager {
+          home-manager.nixosModules.home-manager
+          {
             home-manager.useGlobalPkgs = true;
             home-manager.useUserPackages = true;
             home-manager.users.hms = ./home-manager/home.nix;

home-manager/home.nix

@@ -13,19 +13,22 @@
       ripgrep
       just
       tealdeer
+      zoxide
 
       # Applications
+      blackbox-terminal
       zotero
       zulip
       discord
       signal-desktop
-      sgt-puzzles
+      # sgt-puzzles
       gapless
 
       # Development
       opam
       tinymist
       nixfmt-rfc-style
+      nil
     ];
 
     shell.enableBashIntegration = true;
@@ -49,7 +52,9 @@
           lsp.display-messages = true;
           inline-diagnostics.cursor-line = "info";
           rulers = [ 81 ];
+          gutters.layout = [ "diagnostics" ];
         };
+        keys.insert.j.k = "normal_mode";
       };
     };
     bat.enable = true;
@@ -68,10 +73,14 @@
       enable = true;
       bashrcExtra = ''
         export PS1=" \W \[\e[33m\]λ\[\e[0m\] "
-          test -r '/home/hms/.opam/opam-init/init.sh' && . '/home/hms/.opam/opam-init/init.sh' > /dev/null 2> /dev/null || true
       '';
     };
     gpg.enable = true;
+    zoxide = {
+      enable = true;
+      enableBashIntegration = true;
+      options = [ "--cmd cd" ];
+    };
   };
 
   xdg.userDirs = {

nixos/configuration.nix

@@ -1,12 +1,7 @@
-# Edit this configuration file to define what should be installed on
+{ pkgs, ... }:
-# your system.  Help is available in the configuration.nix(5) man page
-# and in the NixOS manual (accessible by running ‘nixos-help’).
-
-{ config, pkgs, ... }:
 
 {
-  imports =
+  imports = [
-    [ 
     ./hardware-configuration.nix
   ];
 
@@ -20,20 +15,13 @@
       efi.canTouchEfiVariables = true;
     };
     kernelPackages = pkgs.linuxPackages_latest;
-    initrd.luks.devices."luks-374c6259-18c4-462b-9f30-9c9648de00ae".device = "/dev/disk/by-uuid/374c6259-18c4-462b-9f30-9c9648de00ae";
+    initrd.luks.devices."luks-374c6259-18c4-462b-9f30-9c9648de00ae".device =
+      "/dev/disk/by-uuid/374c6259-18c4-462b-9f30-9c9648de00ae";
   };
 
   networking = {
     hostName = "nixos";
     networkmanager.enable = true;
-    wireless.networks.eduroam = {
-      auth = ''
-        key_mgmt=WPA-EAP
-        eap=PWD
-        identity="henri.saudubray@universite-paris-saclay.fr"
-        password=""
-      '';
-    };
   };
 
   # Set your time zone.
@@ -90,21 +78,20 @@
   users.users.hms = {
     isNormalUser = true;
     description = "hms";
-    extraGroups = [ "networkmanager" "wheel" ];
+    extraGroups = [
-    packages = with pkgs; [];
+      "networkmanager"
+      "wheel"
+    ];
+    packages = [ ];
   };
 
-  # Install firefox.
   programs.firefox.enable = true;
 
   nixpkgs = {
     overlays = [ ];
-    # Allow unfree packages
     config.allowUnfree = true;
   };
 
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
   environment.systemPackages = with pkgs; [
     helix
     wget
@@ -113,7 +100,7 @@
     gnomeExtensions.clipboard-indicator
     gnomeExtensions.rounded-window-corners-reborn
     gnomeExtensions.runcat
-    nerd-fonts.caskaydia-cove
+    nerd-fonts.adwaita-mono
     adw-gtk3
     gnumake
     clang
@@ -121,13 +108,10 @@
     xclip
   ];
 
-  # Some programs need SUID wrappers, can be configured further or are
-  # started in user sessions.
-  # programs.mtr.enable = true;
   programs.gnupg.agent = {
     enable = true;
     enableSSHSupport = true;
   };
 
-  system.stateVersion = "25.11"; # Did you read the comment?
+  system.stateVersion = "25.11";
 }

nixos/hardware-configuration.nix

@@ -1,33 +1,51 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, pkgs, modulesPath, ... }:
+{
+  config,
+  lib,
+  modulesPath,
+  ...
+}:
 
 {
-  imports =
+  imports = [
-    [ (modulesPath + "/installer/scan/not-detected.nix")
+    (modulesPath + "/installer/scan/not-detected.nix")
   ];
 
-  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "vmd" "nvme" "usb_storage" "usbhid" "sd_mod" "rtsx_pci_sdmmc" ];
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "thunderbolt"
+    "vmd"
+    "nvme"
+    "usb_storage"
+    "usbhid"
+    "sd_mod"
+    "rtsx_pci_sdmmc"
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" =
+  fileSystems."/" = {
-    { device = "/dev/mapper/luks-de976821-5bfe-4c34-92ff-5d4d607e42c4";
+    device = "/dev/mapper/luks-de976821-5bfe-4c34-92ff-5d4d607e42c4";
     fsType = "ext4";
   };
 
-  boot.initrd.luks.devices."luks-de976821-5bfe-4c34-92ff-5d4d607e42c4".device = "/dev/disk/by-uuid/de976821-5bfe-4c34-92ff-5d4d607e42c4";
+  boot.initrd.luks.devices."luks-de976821-5bfe-4c34-92ff-5d4d607e42c4".device =
+    "/dev/disk/by-uuid/de976821-5bfe-4c34-92ff-5d4d607e42c4";
 
-  fileSystems."/boot" =
+  fileSystems."/boot" = {
-    { device = "/dev/disk/by-uuid/6137-E7B4";
+    device = "/dev/disk/by-uuid/6137-E7B4";
     fsType = "vfat";
-      options = [ "fmask=0077" "dmask=0077" ];
+    options = [
+      "fmask=0077"
+      "dmask=0077"
+    ];
   };
 
-  swapDevices =
+  swapDevices = [
-    [ { device = "/dev/mapper/luks-374c6259-18c4-462b-9f30-9c9648de00ae"; }
+    { device = "/dev/mapper/luks-374c6259-18c4-462b-9f30-9c9648de00ae"; }
   ];
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";