This summarizes some of the external MESA infrastructure and who controls it.
We have the MESAHub GitHub organization. The members of the MTC/MAC all have owner-level privileges. MESAHub is classified as an educational organization and this currently grants us a 100% discount, meaning this costs $0/yr. Unsubsidized, it would cost about $1200/yr.
This is a long-standing domain name used by MESA.
Matteo controls the domain name (using domain.com) and handles renewing it, updating nameservers, etc.
The mesastar.org domain is configured to use Digital Ocean nameservers and the DNS records are managed by Josiah.
The email@example.com and firstname.lastname@example.org lists are hosted by MailmanLists. The account is controlled by Frank who pays the hosting fees (through grants at ASU). This costs about $100/year.
New account signups are handled by Frank, Evan, and Rob.
The Sphinx documentation is hosted by ReadTheDocs. Rich controls the account (and Rob and Evan have access to it). This is currently free for open source software.
The original home of MESA development was sourceforge. Most developers involved c. 2015 or earlier have admin privileges. This is a free service.
Rich controls the Slack and pays for it (through grants at UW Madison). This costs around $130 per year (about $10/user/yr).
The MESA TestHub runs on Heroku and the account is controlled by Bill Wolf. It is funded by Frank and Bill W. The Heroku account costs around $600/yr, though its cost has been higher during the GitHub transition.
The testing log archive lives on a server controlled by Josiah. The marginal cost is $1/month, which he covers.
We have multiple resources archived on Zenodo. This is a free service.