Libreture is built to store e-books, rather than distribute them, but it may be worth looking at your request in other ways.
Like other authors, I could list your 'Bookshop' in our DRM-free Bookshop list - helping others find it.
Anyone who adds one of your books to Libreture could then list your book as being available from your site.
I've been working on the 'Add to Libreture' button. The button allows authors or bookshops to provide a link to readers that adds the book to their Libreture library.
Since you're not charging for your book, you could list it on your website, with an Add to Libreture button - helping readers to add it to their library. In turn, this helps others discover it too.
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!