Lister treats civic memory not only as content to be preserved but as an infrastructural question: who owns the archive, who moderates it, how contributions remain findable, and under what technical conditions urban knowledge can circulate as a public good. The proposed Fediverse-based archive is decentralised, interoperable, citizen-curated and potentially municipally owned, placing technological sovereignty at the centre of memory politics. Methodologically, the paper moves from social-memory and citizenship debates toward concrete technical affordances such as ActivityPub, content identifiers, geocoded metadata, hashtags and distributed storage. Discoverability, privacy and moderation are not implementation details but conditions of public memory. The work bridges urban studies, archival theory, civic technology and digital-rights discourse by linking memory to epistemic equality and public ownership. Its strongest contribution is to redefine the archive as a civic infrastructure whose governance determines who can contribute to the city’s remembered past and how that past remains usable in the future.
