I built a single-file CLI that compiles a folder into a valid EPUB 3
Around February last year, that was also when I started my career as a writer. I made a Light Novel...
Oct 20, 20266 min read1 reactions0 comments
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#epub
My EPUB converter learned that chapter numbers are lies — the spine is the only truth
I built an EPUB-to-Markdown converter expecting a clean pipeline: unzip, parse, walk the files, emit...
Oct 19, 20262 min read0 reactions0 comments
My EPUB converter had to learn that a chapter is a spine entry, not a file
I shipped the EPUB-to-Markdown converter assuming each .xhtml file in the archive was a chapter. Feed...
Oct 15, 20262 min read0 reactions0 comments
My EPUB converter alphabetized a novel — reading order lives in the .opf spine, not the filenames
I tested my EPUB-to-Markdown converter on a public-domain novel and the output read like a shuffled...
Oct 12, 20262 min read0 reactions0 comments
My EPUB converter alphabetized the chapters — the spine, not the zip, defines reading order
A user sent me a 40-chapter technical manual they'd run through my EPUB converter. All the content...
Oct 8, 20262 min read0 reactions0 comments
How to Resolve EPUBCheck HTM_004 and HTM_011 Entity Errors in EPUB 3
EPUB 3.3 defines XHTML Content Documents strictly as XML serializations conforming to the W3C...
Oct 8, 20265 min read0 reactions0 comments
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Sep 17, 2026Process EPUB files in the browser — no uploads
EPUB files are ZIP-based books, so many useful operations can happen entirely in the browser. That...
Sep 17, 20261 min read0 reactions0 comments
My EPUB converter welded footnote paragraphs into mid-sentence text — the definitions hid inside the links
I shipped my EPUB-to-Markdown converter after a week of clean tests on well-behaved novels....
Oct 5, 20262 min read1 reactions0 comments
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Aug 29, 2026A web-to-EPUB pipeline: readable extract, chapter structure, Pandoc
pandoc -f html -t epub3 https://example.com/post -o post.epub looks like a complete product. It is...
Aug 29, 20264 min read0 reactions0 comments
Invisible soft hyphens wrecked RAG search on converted books — 4,000 U+00AD characters hiding in clean text
An agent indexing a 400-page technical manual hit something maddening last week: full-text search on...
Oct 1, 20262 min read0 reactions1 comments
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Sep 2, 2026Kubernetes The Hard Way" Reformatted for Better E-Reader Experience and Accessibility
Introduction: Addressing the Limitations of Kubernetes The Hard Way on E-Readers The...
Sep 2, 20268 min read0 reactions0 comments
tool to convert light novel chapters into EPUBs (linktoepub.com)
You paste any novel site URL into linktoepub.com, and it cleans up the DOM (stripping out ads,...
Jul 25, 20261 min read1 reactions0 comments