#Contributing to ALICE-Analytics##Build
```bash
cargo build
cargo build --no-default-features # no_std check
```
##Test
```bash
cargo test
```
##Lint
```bash
cargo clippy -- -W clippy::all
cargo fmt -- --check
cargo doc --no-deps 2>&1 | grep warning
```
##Design Constraints-**no_std core**: all data structures must compile without `std`. Use fixed-size arrays.
-**Mergeable**: every sketch must implement the `Mergeable` trait for distributed aggregation.
-**Mathematical guarantees**: error bounds must be provable (e.g., HLL standard error = 1.04 / sqrt(m)).
-**Fixed memory**: sketch sizes are compile-time constants via generics or macros.
-**FNV-1a hashing**: use `FnvHasher` for deterministic, portable hashing across nodes.
-**Reciprocal constants**: pre-compute `1.0 / N` to avoid division in hot paths.