In April 2025, Josja developed literal HTTP/3 header support for the h3i library within the cloudflare/quiche repository. This work enabled case-sensitive HTTP/3 header names, addressing protocol fidelity and improving interoperability between HTTP/3 clients and servers. Josja implemented the feature in Rust, leveraging protocol implementation skills and QPACK knowledge to introduce send_headers_frame_literal and update prompt and qlog handling for literal headers. The approach preserved literal header semantics by avoiding lowercase normalization and Huffman encoding, ensuring accurate transmission of header data. The work demonstrated a focused, in-depth enhancement to HTTP/3 handling, though it was limited to a single feature release.