Konsole is not actually 50kb, you need to include the libraries it imports to do an apples to apples comparison. What is going on here is tabby is the equivalent of statically linked + a virtual machine OS called a browser, while konsole is not. To properly compare the two, you need to compare source code size, as if you downloaded tabby and ran it an browser. To really compare them properly, you'd also need to make the typescript compiled into equivalent JS VM assembly. There you'll find them probably to be significantly closer in size