do some terrible things to selenium so devtools might work

flake.nix

@@ -78,18 +78,49 @@
             rust-form
             svd2rust
             svdtools
-            
+
           ];
           RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
         };
-        devShells.avr = with pkgs; pkgsCross.avr.mkShell {
-          packages = [
-            avrdude
-            gnumake
-          ];
+        devShells.avr = with pkgs;
+          pkgsCross.avr.mkShell {
+            packages = [ avrdude gnumake ];
 
-          LIBC = pkgsCross.avr.avrlibc;
-        };
+            LIBC = pkgsCross.avr.avrlibc;
+          };
+        devShells.emoji = with pkgs;
+          mkShell {
+            packages = [
+              chromedriver
+              chromium
+              python3
+              python3Packages.black
+              python3Packages.ipython
+              (python3Packages.selenium.overrideAttrs (old: {
+                postInstall = old.postInstall + ''
+                  for ver in v85 v120 v121 v122; do
+                    DEVTOOLS=../common/devtools/chromium/$ver
+                    for proto in js browser; do
+                      python3 ../common/devtools/convert_protocol_to_json.py \
+                        $DEVTOOLS/"$proto"_protocol.pdl \
+                        --map_binary_to_string=true \
+                        $DEVTOOLS/"$proto"_protocol.json
+                    done
+                    mkdir -p $DST_PREFIX/common/devtools/$ver
+                    python3 generate.py \
+                      $DEVTOOLS/browser_protocol.json \
+                      $DEVTOOLS/js_protocol.json \
+                      $DST_PREFIX/common/devtools/$ver
+                  done
+                '';
+
+                nativeBuildInputs = old.nativeBuildInputs
+                  ++ [ python3Packages.inflection ];
+              }))
+            ];
+
+            CHROME = "${chromium}/bin/chromium";
+          };
         devShells.typst = with pkgs; mkShell { packages = [ typst ]; };
         formatter = pkgs.nixfmt;
       });

scripts/emoji/.envrc

@@ -0,0 +1 @@
+use flake ../..#emoji

scripts/emoji/.gitignore

@@ -0,0 +1 @@
+out

scripts/emoji/get_discord_emoji.py

@@ -1,5 +1,4 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -i python3 -p python3
+#!/usr/bin/env python3
 import json
 import zlib
 import sys

scripts/emoji/scrape_guilds.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+import os.path
+import os
+from selenium import webdriver
+
+options = webdriver.ChromeOptions()
+if location := os.getenv("CHROME"):
+    options.binary_location = location
+options.add_argument("--start-maximized")
+options.add_argument(
+    "--user-data-dir=" + os.path.expanduser("~/.cache/chromium-emoji-script")
+)
+options.add_experimental_option("detach", True)
+driver = webdriver.Chrome(options=options)
+
+# Selenium says this API is deprecated but there's no better working option in Python
+# (okay, maybe there is but they don't really have docs)
+