add a "free" tag to the right of the link to JCP, in an analogous way to the OA logo by the links to the publications reported in the last two news items, or change the text to say that it can be accessed/downloaded for free; and/or
check the open access policy of JCP regarding the accepted manuscript, and consider updating the text/links to open access versions in the last line of the page.
I thought the SIESTA 2020 JCP (https://doi.org/10.1063/5.0005077) was behind the paywall, but today I discovered that
I wonder if we should update the text of https://siesta-project.org/siesta/2020/05/28/overview-paper.html to