diff --git a/default.nix b/default.nix
index 7098020233..d71bbf71ce 100644
--- a/default.nix
+++ b/default.nix
@@ -38,6 +38,12 @@ in {
 , git ? pkgs.gitMinimal # only when building from-CWD (`-local`)
 # rundeps
 , coreutils ? pkgs.coreutils
+, kate ? pkgs.kate.overrideAttrs (oldAttrs: {
+	patches = (oldAttrs.patches or []) ++ [ (fetchpatch {
+		url = "https://invent.kde.org/utilities/kate/-/commit/9ddf4f0c9eb3c26a0ab33c862d2b161bcbdc6a6e.patch"; # Fix name of OmniSharp LSP binary
+		hash = "sha256-a2KqoxuuVhfAQUJA3/yEQb1QCoa1JCvLz7BZZnSLnzI=";
+	}) ];
+})
 , libgdiplus ? pkgs.libgdiplus
 , libGL ? pkgs.libGL
 , lua ? pkgs.lua54Packages.lua
@@ -47,6 +53,7 @@ in {
 	hash = "sha512-GvV707ftLvE0MCTfMJb/M86S2Nxf3vai+HPwq0QvJylmMBwliqYx/nW8X2ja2ruOHzaw3MXXmAxjnv5MMUn07w==";
 }) { inherit system; })
 , nixGL ? nixGLChannel.auto.nixGLDefault
+, omnisharp-roslyn ? pkgs.omnisharp-roslyn
 #, nixVulkan ? nixGLChannel.auto.nixVulkanNvidia
 , openal ? pkgs.openal
 , SDL2 ? pkgs.SDL2
@@ -172,6 +179,9 @@ in {
 			bizhawkAssemblies = asmsFromReleaseArtifacts."bizhawkAssemblies-${latestVersionFrag}-bin";
 		};
 		emuhawk = emuhawk-local;
+		IDEs = {
+			kate = [ kate omnisharp-roslyn ];
+		};
 		launchScriptsForLocalBuild = launchScriptsFor emuhawk-local.assemblies true;
 	};
 in combined // lib.listToAttrs (lib.concatLists (builtins.map
diff --git a/shell.nix b/shell.nix
index 2ea8cb5880..c238bf5542 100644
--- a/shell.nix
+++ b/shell.nix
@@ -18,7 +18,7 @@
 	f = drv: mkShell {
 		packages = [ git powershell ]
 			++ lib.optionals useNanoAndCola [ git-cola nano ]
-			++ lib.optionals useKate [] #TODO
+			++ lib.optionals useKate avail.IDEs.kate
 			++ lib.optionals useVSCode [] #TODO https://devblogs.microsoft.com/dotnet/csharp-dev-kit-now-generally-available/ https://learn.microsoft.com/en-us/training/modules/implement-visual-studio-code-debugging-tools/
 			;
 		inputsFrom = [ drv ];