hal.science
In short: Getting listed on HAL Open Science is free. Plan for about 45 minutes — there is material to prepare and a review to wait on.
What they ask for: Deposit your research-level open-source component or related preprint/report with accurate project and source links.
Deposit your research-level open-source component or related preprint/report with accurate project and source links.
Research-software or scholarly output only; accurate authorship, affiliation, rights, licence and metadata; deposits may be reviewed and cannot be self-deleted after acceptance.
Open the submission page on hal.science and complete its form — that is the "Open submit page" link at the top of this page.
Research-software or scholarly output only; accurate authorship, affiliation, rights, licence and metadata; deposits may be reviewed and cannot be self-deleted after acceptance.
Priority sets the band — this one is medium. Cost (free) and effort (moderate) move it within that band, which puts it in the useful tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.