Raft orders.
MonsterFt uses standard, unmodified Raft to place every command in one sequence.
A LOCK HOST PROJECT / MONSTERFT
Write apps that survive cosmic radiation and faulty hardware.
IN ORBIT AND ON EARTH
Built on world-famous Raft and SQLite
READ THE THESIS ↓Replication alone does not prove the data is right.
A transient hardware fault can alter application data without crashing the machine. Traditional replication will keep serving that result. MonsterFt adds a deliberate checkpoint above Raft: order the work, run it independently, compare the app change + response, and accept only when enough nodes agree.
DESIGNED FOR THE FAILURE
THAT LEAVES NO STACK TRACE.
Even formally verified software can fail due to hardware.1
ECC RAM / GOOGLE FIELD STUDY1 error
per 100
server-years
100-server fleet = 1 error every year.
ECC RAM + MONSTERFT / MODELED RATE1 error
per 100 billion
server-years
100-server fleet = 1 error every billion years.
BIGGER NUMBERS LOOK UNBELIEVABLE (WE CAN GO HIGHER). MONSTERFT WILL BE ON TOP.
THE SYSTEM
02One command.
Independent witnesses.
SQLite records.
Each available node runs your application state machine inside a SQLite transaction and captures the resulting row changes as a patchset.
Nodes compare.
The patchset, ordered return value, and any stable application error must match.
The cluster corrects.
Nodes in the agreement quorum can restore a member that produced a different outcome.
THROUGHPUT PER CLUSTER2
Fast enough
for the work.
COMMANDS / SECOND
MONSTERFT.APPEND
COMMANDS / SECOND
MONSTERFT.APPENDBATCH
BATCH FOR SPEED — NOT A SHARED TRANSACTION
Every command in appendBatch() remains individually atomic and isolated, just as with append(). If one command fails, it rolls back independently; successful commands still commit.
THE PRODUCT MODEL
03Building for commercial deployment.
Both Node.js and Rust codebases are AGPL-3.0 to encourage collaborations while leaving open a path for negotiating commercial licenses and support packages.
01 / AVAILABLE TODAY
Node.js
The reference implementation.
- Replicated SQLite state machine
- Outcome verification across nodes
- Atomic single + batch commands
- Application-owned transport
02 / AVAILABLE TOMORROW
Rust + VFS
The high-performance implementation.
- Highest throughput
- C FFI for embedded systems
- SQLite VFS collection
- Developer support on demand
THE FOUNDATION
04Small enough for the edge.
Serious enough for the mission.
Lock Host is joining the SQLite Consortium to support the database at the foundation of MonsterFt.
Lock Host’s AGPL-licensed VFS collection will be validated against SQLite’s private TH3 test suite.
EARLY PARTNERS / INVESTORS / ENGINEERS