diff --git a/src/import/analyzer.rs b/crates/improvise-io/src/import/analyzer.rs
similarity index 100%
rename from src/import/analyzer.rs
rename to crates/improvise-io/src/import/analyzer.rs
diff --git a/src/import/csv_parser.rs b/crates/improvise-io/src/import/csv_parser.rs
similarity index 100%
rename from src/import/csv_parser.rs
rename to crates/improvise-io/src/import/csv_parser.rs
diff --git a/src/import/mod.rs b/crates/improvise-io/src/import/mod.rs
similarity index 100%
rename from src/import/mod.rs
rename to crates/improvise-io/src/import/mod.rs
diff --git a/src/import/wizard.rs b/crates/improvise-io/src/import/wizard.rs
similarity index 100%
rename from src/import/wizard.rs
rename to crates/improvise-io/src/import/wizard.rs
diff --git a/crates/improvise-io/src/lib.rs b/crates/improvise-io/src/lib.rs
index 9bdd4fb..4547ce5 100644
--- a/crates/improvise-io/src/lib.rs
+++ b/crates/improvise-io/src/lib.rs
@@ -9,7 +9,8 @@
 //! Re-exports the core modules under their conventional names so code in
 //! this crate can keep using `crate::model::*`, `crate::view::*`,
 //! `crate::workbook::*`, `crate::format::*`, and `crate::formula::*` paths.
-//!
-//! Scaffolded empty in this commit; the modules land in the next commit.
 pub use improvise_core::{format, model, view, workbook};
 pub use improvise_formula as formula;
+
+pub mod import;
+pub mod persistence;
diff --git a/src/persistence/improv.pest b/crates/improvise-io/src/persistence/improv.pest
similarity index 100%
rename from src/persistence/improv.pest
rename to crates/improvise-io/src/persistence/improv.pest
diff --git a/src/persistence/mod.rs b/crates/improvise-io/src/persistence/mod.rs
similarity index 100%
rename from src/persistence/mod.rs
rename to crates/improvise-io/src/persistence/mod.rs
diff --git a/examples/gen-grammar.rs b/examples/gen-grammar.rs
index 56a2a6e..9e980f5 100644
--- a/examples/gen-grammar.rs
+++ b/examples/gen-grammar.rs
@@ -21,7 +21,8 @@ use pest_meta::ast::{Expr, RuleType};
 use pest_meta::parser;
 use std::collections::HashMap;
 
-const GRAMMAR: &str = include_str!("../src/persistence/improv.pest");
+const GRAMMAR: &str =
+    include_str!("../crates/improvise-io/src/persistence/improv.pest");
 
 fn load_grammar() -> HashMap<String, (RuleType, Expr)> {
     let pairs = parser::parse(parser::Rule::grammar_rules, GRAMMAR)
diff --git a/src/lib.rs b/src/lib.rs
index 642b696..ae50bf2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,9 +2,9 @@ pub mod command;
 pub mod draw;
 pub use improvise_core::format;
 pub use improvise_formula as formula;
-pub mod import;
+pub use improvise_io::import;
 pub use improvise_core::model;
-pub mod persistence;
+pub use improvise_io::persistence;
 pub mod ui;
 pub use improvise_core::view;
 pub use improvise_core::workbook;