Product Family
Mainstay brings together a set of independently useful products. Their clear boundaries are a strength: each component can be deployed, tested, replaced, and understood on its own.
Safebox Web
The standalone user app for records, payments, recovery, handles, and everyday wallet workflows. Safebox Web provides Mainstay's practical application foundation.
Acorn
The protocol-first component for user-controlled keys, funds, and records. Acorn keeps portable signing, recovery, and wallet authority below the application layer.
Stroma
The focused Nostr wire-format library beneath Acorn. Stroma handles keys, event encoding, signatures, NIP-44 encryption, NIP-59 gift wrapping, and bounded relay exchange without owning application meaning.
Grove
A local-first Blossom server for opaque, content-addressed encrypted blobs and attachments. Grove preserves and retrieves bytes without needing to understand their plaintext or application meaning.
Spurline
A local-first Nostr relay for durable event storage, selective synchronization, and future community mesh operation. Spurline keeps signed events available across connected and disrupted conditions.
Clear
The issuance, circulation and redemption machinery for organization-defined transferable units. Clear uses private Cashu bearer notes without requiring Bitcoin or Lightning settlement.
OpenETR
An open protocol for deriving consequential state from end-verifiable evidence concerning exact Digital Artifacts. OpenETR keeps artifact identity, signed evidence, derived state, and external recognition distinct.
How the pieces fit
Mainstay
unified user application
|
+----------------+----------------+
| | |
Safebox Web Acorn Clear
user flows portable authority local mint
|
+-----+-----+
| |
Stroma Grove
Nostr wire blobs
|
Spurline
event relay
Lockbox runs the stack locally
Mainstay <----> OpenETR
evidence and derived state
artifacts, control history, recognition
Mainstay discovers available services and explains their state in plain language. It must keep different mints, currencies, issuers, relays, and storage providers visible enough that convenience never becomes false equivalence.
OpenETR is not another storage provider or system of record. It complements Mainstay with Digital Controllable Records: portable signed evidence from which consequential state can be derived under defined rules. Mainstay can present an exact Digital Artifact, its evidence, and the resulting state while leaving recognition and effect with the people, organizations, and authorities relying on it.
Stroma is not another application or hosted infrastructure service. It is the small protocol layer Acorn uses to speak Nostr without importing social-client behavior into the wallet kernel. Spurline and other compatible relays remain independent services on the other side of that wire boundary.
Clear and local economies
Clear adds an optional local economic layer. A church, food-bank network, campus, event, resort, co-working facility, or Indigenous community program can operate bounded credits recognized by participating people and providers.
A resort could issue guest credits, staff allowances, activity vouchers, meal credits, or local service credits on its own network. Acorn holds the proofs, Mainstay presents the experience, Spurline carries signed local events, and Lockbox can host the runtime. The resort treasury remains responsible for issuance and provider settlement.
These currencies are voluntary, limited-recognition instruments rather than legal tender. Mainstay must keep every currency and its governing organization distinct.