Rheo 0.4.0 produces a valid EPUB 3 container but the OPF metadata is incomplete: only dc:identifier, dc:title, dc:language, and dcterms:modified are populated. #set document(author: ...) is silently dropped (Calibre shows "Unknown"), [epub] date = 2026-07-10T00:00:00 fails to deserialize ("invalid type: string, expected a TOML datetime"), and there is no config knob for dc:publisher/dc:rights/dc:description or <meta name="cover">. Workaround: #let rheo-author = "..." works because crates/epub/src/lib.rs:397-399 reads the rheo-* var, but it is undocumented and no other Dublin Core fields are exposed. Please either fix the [epub] date deserialization (toml 0.8 vs 1.1 conflict in Cargo.lock) and add publisher/rights/description/cover to EpubConfig, or document #let rheo-author in the user guide.
Rheo 0.4.0 produces a valid EPUB 3 container but the OPF metadata is incomplete: only
dc:identifier,dc:title,dc:language, anddcterms:modifiedare populated.#set document(author: ...)is silently dropped (Calibre shows "Unknown"),[epub] date = 2026-07-10T00:00:00fails to deserialize ("invalid type: string, expected a TOML datetime"), and there is no config knob fordc:publisher/dc:rights/dc:descriptionor<meta name="cover">. Workaround:#let rheo-author = "..."works becausecrates/epub/src/lib.rs:397-399reads therheo-*var, but it is undocumented and no other Dublin Core fields are exposed. Please either fix the[epub] datedeserialization (toml 0.8 vs 1.1 conflict in Cargo.lock) and add publisher/rights/description/cover toEpubConfig, or document#let rheo-authorin the user guide.