Bump Sphinx and theme

Requires bumping nixpkgs, poetry2nix and associated overrides.

This is all so that our footer can stick to the bottom of the page.

flake.lock

@@ -1,33 +1,35 @@
 {
   "nodes": {
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1656065134,
-        "narHash": "sha256-oc6E6ByIw3oJaIyc67maaFcnjYOz1mMcOtHxbEf9NwQ=",
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "bee6a7250dd1b01844a2de7e02e4df7d8a0a206c",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
         "type": "github"
       },
       "original": {
         "owner": "numtide",
-        "ref": "master",
         "repo": "flake-utils",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1656265786,
-        "narHash": "sha256-A9RkoGrxzsmMm0vily18p92Rasb+MbdDMaSnzmywXKw=",
+        "lastModified": 1685272473,
+        "narHash": "sha256-oHNi6BgcGquKDkVN1/awsh+KLBey+Nj3ejTVH585upU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "cd90e773eae83ba7733d2377b6cdf84d45558780",
+        "rev": "a7adeadc7d4033048592fac7c87ca888d2a99d31",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-22.05",
+        "ref": "nixos-23.05",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -42,16 +44,15 @@
         ]
       },
       "locked": {
-        "lastModified": 1655482677,
-        "narHash": "sha256-IGTwio1b4C7Etn4gBb76NILDS+8BsOmDlG8+dhfZL40=",
+        "lastModified": 1685057602,
+        "narHash": "sha256-9C2Zh1MOyu6hkyYhZOanwZ0utHxFMx2HS23OIjszYu0=",
         "owner": "nix-community",
         "repo": "poetry2nix",
-        "rev": "ea3bd4eb70a3f9ead0dd88dab23e42c542e69c07",
+        "rev": "6ad5ea833729b1c794f2b3ccb73f2413b80f4bb4",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "master",
         "repo": "poetry2nix",
         "type": "github"
       }
@@ -62,6 +63,21 @@
         "nixpkgs": "nixpkgs",
         "poetry2nix": "poetry2nix"
       }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -1,12 +1,12 @@
 {
   description = "nix.dev static website";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.05";
-  inputs.flake-utils.url = "github:numtide/flake-utils/master";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
   inputs.poetry2nix = {
     inputs.flake-utils.follows = "flake-utils";
     inputs.nixpkgs.follows = "nixpkgs";
-    url = "github:nix-community/poetry2nix/master";
+    url = "github:nix-community/poetry2nix";
   };
 
   outputs = { self, nixpkgs, flake-utils, poetry2nix }:
@@ -25,18 +25,30 @@
             }
           );
 
-          sphinx-design = super.sphinx-design.overridePythonAttrs (
+          sphinx = super.sphinx.overridePythonAttrs (
             old: {
               buildInputs = (old.buildInputs or [ ]) ++ [ self.flit-core ];
             }
           );
+
+          accessible-pygments = super.accessible-pygments.overridePythonAttrs (
+            old: {
+              buildInputs = (old.buildInputs or [ ]) ++ [ super.setuptools ];
+            }
+          );
+
         };
-      in rec {
+      in
+      rec {
         packages = flake-utils.lib.flattenTree {
           nix-dev-pyenv = pkgs.poetry2nix.mkPoetryEnv {
             projectDir = self;
             python = pkgs.python39;
             overrides = [
+              (self: super: {
+                pydata-sphinx-theme = super.pydata-sphinx-theme.override { preferWheel = true; };
+                sphinx-book-theme = super.sphinx-book-theme.override { preferWheel = true; };
+              })
               pkgs.poetry2nix.defaultPoetryOverrides
               poetryOverrides
             ];

pyproject.toml

@@ -11,7 +11,7 @@ python = "^3.7"
 livereload = "*"
 myst-parser = {version = "*", extras = ["linkify"]}
 sphinx = "*"
-sphinx-book-theme = "^0.2.0"
+sphinx-book-theme = "^1.0.0"
 sphinx-copybutton = "*"
 sphinx-design = "^0.3.0"