On-chain media storage may require efficient inline text compression for HTML / JS. Here is a custom pipeline to generate stand-alone HTML or JS files, embedded with self-extracting text, and file sizes of ~50% the original. The approach makes sense and is optimized for small texts, but performs well also on large texts.

ZTML pipeline:

1. Text normalization (irreversible; reduce whitespace, substitute unicode punctuation)
2. Text condensation (reversible; lowercase with automatic capitalization*, substitute common strings as: the, qu)
3. Huffman encoding (with a codebook-free decoder, beneficial even as followed by DEFLATE)
4. PNG / DEFLATE compression (allowing native decompression, aspect ratio optimized for minimal padding, Zopfli optimization)
5. Binary to text encoding embedded in JS template literals:
   1. crEnc encoding (a yEnc variant with 1.6% overhead, to be used with single-byte charset)
   2. Base125 encoding (a Base122 variant with 15% overhead, to be used with utf8 charset)
6. Uglification of the generated JS (substitute recurring element, attribute and function names with short aliases)

*Automatic capitalization recovery is currently partial.

Note: files larger than a few MB may not work on iOS Safari or macOS Safary 15