Why trust this?
Every recommendation in this app cites a rule. Every rule states its
mechanism, its evidence grade, and whether a human has actually read the source.
Here is all of it — including the folklore we checked and won't repeat.
Where the climate numbers come from
Your frost window is precomputed from NOAA NCEI 1991–2020 station
normals (tier A, measured), a PRISM terrain offset where you're between stations
(tier B, modelled), or ERA5 reanalysis where no station is in range (tier C). The
app always shows which one you got and how far the data travelled (R-090). After
three logged seasons, your own ground's observations supersede all of it (R-093).
Account & sync
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advanced: use your own backend instead of the standard one
Custom sync backend
Your own free Supabase project holds your synced garden — you own the
backend, not us. docs/ACCOUNTS-SETUP.md in the repo walks through the
three steps; paste the project URL and publishable key here. Both stay on this
device.
URL
key
save backend
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Privacy, in plain words
Signed out, your garden data lives only in this browser — the export
button is your backup. Signed in, your addresses, areas, and seasons are stored in
Milpa Gardens' account backend (Supabase), readable only by your own account
(row-level security) and deletable above in one tap; advanced users can point the
app at their own backend instead. The plant knowledge (the corpus) is a public file
baked into the app; your data never mixes into it. Optional conveniences call out
when you use them: address lookup (OpenStreetMap Nominatim) and map imagery (Esri).
No analytics, no tracking.