lez-programs

Essential programs for the Logos Execution Zone (LEZ) — a zkVM-based execution environment built on RISC Zero. Programs run inside the RISC Zero zkVM (riscv32im-risc0-zkvm-elf target) and interact with the LEZ runtime via the nssa_core library.

Programs

Program	Description
token	Fungible and non-fungible token program — create definitions, mint/burn tokens, transfer, initialize accounts, print NFTs
amm	Constant-product AMM — add/remove liquidity and swap via chained calls to the token program
ata	Associated Token Account program — derives and initializes deterministic token holding accounts for a given owner and token definition
stablecoin	Collateral-backed position program — open collateral positions as a foundation for stablecoin debt issuance
twap_oracle	TWAP oracle — provides canonical on-chain price accounts consumed by other programs (e.g. stablecoin)

Apps

App	Description
amm	QML-based UI for interacting with the AMM program

Running Apps

Apps live under apps/ and are standalone UI applications. Each app has its own README.md with full details.

Apps use Nix flakes. Enable flakes if you haven't already:

mkdir -p ~/.config/nix && echo "experimental-features = nix-command flakes" >> ~/.config/nix/nix.conf

Example (apps/amm)

cd apps/amm

# Run the app
nix run .

# Update pinned dependencies
nix flake update

Prerequisites

• Rust — install via rustup. The pinned toolchain version is set in rust-toolchain.toml.

• RISC Zero toolchain — required to build guest ZK binaries:

  cargo install cargo-risczero
  cargo risczero install

• SPEL toolchain — provides spel and wallet CLI tools. Install from logos-co/spel.

• LEZ — provides wallet CLI. Install from logos-blockchain/logos-execution-zone

Build & Test

# Lint the entire workspace (skips expensive guest ZK builds)
make clippy

# Format check
make fmt

# Run unit tests for all programs (no zkVM, no ZK proof generation)
RISC0_DEV_MODE=1 cargo test -p token_program -p amm_program -p ata_program -p stablecoin_program -p twap_oracle_program

# Run integration tests (dev mode skips ZK proof generation)
RISC0_DEV_MODE=1 cargo test -p integration_tests

# Run all tests
make test

Integration tests live in programs/integration_tests/tests/ and cover token, amm, and ata programs end-to-end through the zkVM using RISC0_DEV_MODE=1 to skip proof generation. Each test file corresponds to a program:

• programs/integration_tests/tests/token.rs
• programs/integration_tests/tests/amm.rs
• programs/integration_tests/tests/ata.rs

stablecoin and twap_oracle are tested via their own unit tests (cargo test -p stablecoin_program -p twap_oracle_program).

Compile Guest Binaries

The guest binaries are compiled to the riscv32im-risc0-zkvm-elf target. This requires the RISC Zero toolchain.

cargo risczero build --manifest-path <PROGRAM>/methods/guest/Cargo.toml

Binaries are output to:

<PROGRAM>/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/<PROGRAM>.bin

Deployment

# Deploy a program binary to the sequencer
wallet deploy-program <path-to-binary>

# Example
wallet deploy-program programs/token/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/token.bin
wallet deploy-program programs/amm/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/amm.bin
wallet deploy-program programs/ata/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/ata.bin
wallet deploy-program programs/stablecoin/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/stablecoin.bin
wallet deploy-program programs/twap_oracle/methods/guest/target/riscv32im-risc0-zkvm-elf/docker/twap_oracle.bin

To inspect the ProgramId of a built binary:

spel inspect <path-to-binary>

Interacting with Programs via spel

Generate an IDL

The IDL describes the program's instructions and can be used to interact with a deployed program.

Using the idl-gen crate (no external toolchain required — this is what CI uses):

make idl

Using the spel CLI (requires the SPEL toolchain):

spel generate-idl programs/token/methods/guest/src/bin/token.rs > artifacts/token-idl.json
spel generate-idl programs/amm/methods/guest/src/bin/amm.rs > artifacts/amm-idl.json
spel generate-idl programs/ata/methods/guest/src/bin/ata.rs > artifacts/ata-idl.json
spel generate-idl programs/stablecoin/methods/guest/src/bin/stablecoin.rs > artifacts/stablecoin-idl.json
spel generate-idl programs/twap_oracle/methods/guest/src/bin/twap_oracle.rs > artifacts/twap_oracle-idl.json

Generated IDL files are committed under artifacts/. CI will fail if a program's IDL is missing or out of date.

Invoke Instructions

Use spel --idl <IDL> <INSTRUCTION> [ARGS...] to call a deployed program instruction:

spel --idl artifacts/token-idl.json <instruction> [args...]
spel --idl artifacts/amm-idl.json <instruction> [args...]
spel --idl artifacts/ata-idl.json <instruction> [args...]
spel --idl artifacts/stablecoin-idl.json <instruction> [args...]
spel --idl artifacts/twap_oracle-idl.json <instruction> [args...]