diff --git a/.github/workflows/lints.yml b/.github/workflows/lints.yml
index 694ae6019..1d85315f5 100644
--- a/.github/workflows/lints.yml
+++ b/.github/workflows/lints.yml
@@ -10,7 +10,22 @@ env:
   CARGO_TERM_COLOR: always
 
 jobs:
-  build:
+  msrv:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
+
+    - name: Install MSRV toolchain
+      uses: dtolnay/rust-toolchain@master
+      with:
+        toolchain: "1.72"
+
+    - name: Check MSRV
+      run: cargo build --lib --all-features
+
+  lints:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
diff --git a/Cargo.lock b/Cargo.lock
index fb4f4ac59..aa2016374 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -745,7 +745,7 @@ checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 
 [[package]]
 name = "graviola"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "cfg-if",
  "getrandom",
diff --git a/README.md b/README.md
index 44a1d47f4..783ecc0c3 100644
--- a/README.md
+++ b/README.md
@@ -17,8 +17,9 @@ needed: just the Rust compiler.  Compiles in less than one second.
 
 ## Status
 
-Active development.  Do not use.  Currently external contributions
-are not welcomed; please do not file issues or PRs.
+This project is very new, so exercise due caution.  At the moment
+there is not a public API outside of the `rustls` `CryptoProvider` --
+so you can use this for TLS, but not for other uses.
 
 ## Goals
 
diff --git a/admin/coverage b/admin/coverage
new file mode 100755
index 000000000..78b5304bd
--- /dev/null
+++ b/admin/coverage
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -e
+
+source <(cargo llvm-cov show-env --export-prefix "$@")
+cargo llvm-cov clean --workspace
+
+cargo build --locked --all-targets --all-features
+cargo test --locked --all-features
+env GRAVIOLA_CPU_DISABLE_sha=1 GRAVIOLA_CPU_DISABLE_bmi2=1 cargo test --locked --all-features
+cargo run --example client https://jbp.io >/dev/null
+
+cargo llvm-cov report "$@"
diff --git a/graviola/Cargo.toml b/graviola/Cargo.toml
index 4c36f2568..36a5f9595 100644
--- a/graviola/Cargo.toml
+++ b/graviola/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "graviola"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 repository = "https://github.com/ctz/graviola/"
 license = "Apache-2.0 OR ISC OR MIT-0"
diff --git a/graviola/src/low/generic/zeroise.rs b/graviola/src/low/generic/zeroise.rs
index 6a6640b6f..b55f906d3 100644
--- a/graviola/src/low/generic/zeroise.rs
+++ b/graviola/src/low/generic/zeroise.rs
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT-0
 
 use crate::low::zero_bytes;
+use core::mem::{size_of, size_of_val};
 
 /// Writes zeroes over the whole of the `v` slice.
 pub(crate) fn zeroise<T: Zeroable>(v: &mut [T]) {
diff --git a/graviola/tests/zeroing.rs b/graviola/tests/zeroing.rs
index 6719e4cc5..27c8b9847 100644
--- a/graviola/tests/zeroing.rs
+++ b/graviola/tests/zeroing.rs
@@ -11,6 +11,7 @@
 
 #![cfg(target_os = "linux")]
 
+use core::mem::size_of;
 use core::ops::Deref;
 use core::pin::Pin;
 use core::ptr;