There is a quiet category of software whose best feature is an absence: no account, no server, no upload. A vault that is one file you own, a model that runs on your own silicon, a journal that is only ever plain text on disk.
Open Minis via MacStories
A private AI agent that runs your calendar and HomeKit without a cloud round-trip
→ apps.apple.com
PanicVault via r/macapps
A password manager that keeps your vault as a single KeePass file you own
→ panicvault.org
Select any text, press ⌥⌘L, and it joins a listening queue that never leaves the Mac
→ orate.to
A RAW browser that treats a folder as a folder — no import step, no managed library
→ github.com