The MDU finally re-opens the forms on it's citizen services at https://mushville.org/services/
The services have been down for a long time, stopping citizens and citizenship applicants from filing their forms. The forms have been down due to changes in infrastructure. They've been massively stabilized and should stay for a long time!
Citizens and applicants can use the citizen services forms to apply for citizenship and passports, and submit appeals and petitions to law.