<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDIvZWM0ODRkMTctYjQ0Ny00NTE1LTg4MjEtNDQ4ZWJlM2VmYjRkLmpwZw==.jpg"></p><p>Chain development kits (CDKs) are expanding the universe of possibilities open to developers on the Ethereum network.</p>