{ config, pkgs, lib, ... }: with pkgs;
    
let lsp-config = (writeTextFile (rec {
		name = "kak-lsp.toml";
		destination = "/share/kak-lsp/${name}";
		text = let semTok = (name: value: ''
			[[semantic_tokens]]
    		token = "${name}"
			face = "${value}"
		''); in ''

			[language.rust]
    		filetypes = [ "rust" ]
    		roots = [ "Cargo.toml" ]
    		command = "rust-analyzer"
    		[language.rust.settings.rust-analyzer]
        	semanticTokens = true
        	diagnostics.enabled = [ "unresolved-proc-macro" ]
        	cargo.loadOutDirsFromCheck = true
        	procMacro.enable = false

            [language.haskell]
            filetypes = [ "haskell" ]
            roots = [ "Setup.hs", "stack.yaml", "*.cabal" ]
            command = "haskell-language-server-wrapper"
            args = [ "--lsp" ]

            [language.nix]
            filetypes = [ "nix" ]
            roots = [ "flake.nix", "shell.nix", ".git", ".hg" ]
            command = "rnix-lsp"
        	
        	${lib.concatStringsSep "\n" (lib.mapAttrsToList semTok {
				"enumMember" 	= "variant";
				"enum" 		 	= "enum";
				"union"		 	= "union";
				"struct"	 	= "struct";
				"typeAlias"	 	= "alias";
				"builtinType" 	= "primitive";
				"trait"			= "trait";
				"interface"		= "trait";
				"method"		= "method";
				"function"		= "function";
				"namespace"		= "module";
				"boolean"		= "literal";
				"character"		= "literal";
				"number"		= "literal";
				"string"		= "string";
				"keyword"		= "keyword";
				"documentation" = "comment";
				"comment"		= "comment";
				"escapeSequence"  = "format";
				"formatSpecifier" = "format";
				"operator"		= "operator";
				"arithmetic"	= "operator";
				"bitwise"		= "operator";
				"comparison"	= "operator";
				"logical"		= "operator";
				"macro" 		= "macro";
				"lifetime"		= "lifetime";
				"variable" 		= "variable";
				"attribute"		= "attribute";
				"punctuation" 	= "punctuation";
            }) }
		'';
	}));

in [
	# Kakoune language server support
	(symlinkJoin {
		paths = with kakounePlugins; [
			
			# The language server client
			kak-lsp

			# Include default language servers
			rnix-lsp
			haskell-language-server

			# Overwrite kak-lsp.toml
			lsp-config

		];
		name = "kak-lsp-${kak-lsp.version}";
		nativeBuildInputs = [ makeWrapper ];
		postBuild = ''
			wrapProgram $out/bin/kak-lsp --add-flags "--config $out/share/kak-lsp/kak-lsp.toml"
		'';
	})
]