diff --git a/01.workspace/Cargo.lock b/01.workspace/Cargo.lock
index d93ae50..161e690 100644
--- a/01.workspace/Cargo.lock
+++ b/01.workspace/Cargo.lock
@@ -2,18 +2,74 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "bitflags"
+version = "2.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2261d10cca569e4643e526d8dc2e62e433cc8aba21ab764233731f8d369bf394"
+
 [[package]]
 name = "bumpalo"
 version = "3.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
 
+[[package]]
+name = "cc"
+version = "1.2.39"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1354349954c6fc9cb0deab020f27f783cf0b604e8bb754dc4658ecf0d29c35f"
+dependencies = [
+ "find-msvc-tools",
+ "shlex",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2fd1289c04a9ea8cb22300a459a72a385d7c73d3259e2ed7dcb2af674838cfa9"
 
+[[package]]
+name = "errno"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
+dependencies = [
+ "libc",
+ "windows-sys",
+]
+
+[[package]]
+name = "fallible-iterator"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2acce4a10f12dc2fb14a218589d4f1f62ef011b2d0cc4b3cb1bba8e94da14649"
+
+[[package]]
+name = "fallible-streaming-iterator"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
+
+[[package]]
+name = "fastrand"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
+
+[[package]]
+name = "find-msvc-tools"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ced73b1dacfc750a6db6c0a0c3a3853c8b41997e2e2c563dc90804ae6867959"
+
+[[package]]
+name = "foldhash"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
+
 [[package]]
 name = "getrandom"
 version = "0.3.3"
@@ -26,11 +82,31 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.15.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
+dependencies = [
+ "foldhash",
+]
+
+[[package]]
+name = "hashlink"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
+dependencies = [
+ "hashbrown",
+]
+
 [[package]]
 name = "heave"
 version = "0.1.0"
 dependencies = [
+ "rusqlite",
  "short-uuid",
+ "tempfile",
 ]
 
 [[package]]
@@ -49,6 +125,23 @@ version = "0.2.176"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58f929b4d672ea937a23a1ab494143d968337a5f47e56d0815df1e0890ddf174"
 
+[[package]]
+name = "libsqlite3-sys"
+version = "0.35.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "133c182a6a2c87864fe97778797e46c7e999672690dc9fa3ee8e241aa4a9c13f"
+dependencies = [
+ "cc",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df1d3c3b53da64cf5760482273a98e575c651a67eec7f77df96b5b642de8f039"
+
 [[package]]
 name = "log"
 version = "0.4.28"
@@ -61,6 +154,12 @@ version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.101"
@@ -85,12 +184,45 @@ version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
+[[package]]
+name = "rusqlite"
+version = "0.37.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "165ca6e57b20e1351573e3729b958bc62f0e48025386970b6e4d29e7a7e71f3f"
+dependencies = [
+ "bitflags",
+ "fallible-iterator",
+ "fallible-streaming-iterator",
+ "hashlink",
+ "libsqlite3-sys",
+ "smallvec",
+]
+
+[[package]]
+name = "rustix"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd15f8a2c5551a84d56efdc1cd049089e409ac19a3072d5037a17fd70719ff3e"
+dependencies = [
+ "bitflags",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "short-uuid"
 version = "0.2.0"
@@ -100,6 +232,12 @@ dependencies = [
  "uuid",
 ]
 
+[[package]]
+name = "smallvec"
+version = "1.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
+
 [[package]]
 name = "syn"
 version = "2.0.106"
@@ -111,6 +249,19 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.23.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d31c77bdf42a745371d260a26ca7163f1e0924b64afa0b688e61b5a9fa02f16"
+dependencies = [
+ "fastrand",
+ "getrandom",
+ "once_cell",
+ "rustix",
+ "windows-sys",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.19"
@@ -128,6 +279,12 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "wasi"
 version = "0.14.7+wasi-0.2.4"
@@ -205,6 +362,21 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "windows-link"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45e46c0661abb7180e7b9c281db115305d49ca1709ab8242adf09666d2173c65"
+
+[[package]]
+name = "windows-sys"
+version = "0.61.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f109e41dd4a3c848907eb83d5a42ea98b3769495597450cf6d153507b166f0f"
+dependencies = [
+ "windows-link",
+]
+
 [[package]]
 name = "wit-bindgen"
 version = "0.46.0"
diff --git a/01.workspace/heave/Cargo.toml b/01.workspace/heave/Cargo.toml
index dabcaa6..bace761 100644
--- a/01.workspace/heave/Cargo.toml
+++ b/01.workspace/heave/Cargo.toml
@@ -4,4 +4,6 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+rusqlite = { version = "0.37.0", features = ["bundled"] }
 short-uuid = "0.2.0"
+tempfile = "3.23.0"
diff --git a/01.workspace/heave/src/fun/mod.rs b/01.workspace/heave/src/fun/mod.rs
index 8b13789..ca2006a 100644
--- a/01.workspace/heave/src/fun/mod.rs
+++ b/01.workspace/heave/src/fun/mod.rs
@@ -1 +1 @@
-
+pub mod sqlite_init_db;
diff --git a/01.workspace/heave/src/fun/sqlite_init_db.rs b/01.workspace/heave/src/fun/sqlite_init_db.rs
new file mode 100644
index 0000000..c6831ef
--- /dev/null
+++ b/01.workspace/heave/src/fun/sqlite_init_db.rs
@@ -0,0 +1,34 @@
+use crate::*;
+use rusqlite::*;
+
+pub fn run(path: &path::Path) {
+    let init_statement = r#"
+        CREATE TABLE IF NOT EXISTS entity (
+            id TEXT PRIMARY KEY,
+            class TEXT NOT NULL
+        );
+        CREATE TABLE IF NOT EXISTS attribute (
+            id TEXT PRIMARY KEY,
+            value_int INTEGER,
+            value_uint INTEGER,
+            value_real REAL,
+            value_text TEXT,
+            value_bool BOOL,
+            entity_id TEXT,
+            CONSTRAINT fk_entity_id FOREIGN KEY (entity_id) REFERENCES entity (id) ON DELETE CASCADE ON UPDATE CASCADE
+        );
+        "#;
+    let connection = Connection::open(path).unwrap();
+    let _result = connection.execute_batch(init_statement);
+}
+
+#[cfg(test)]
+mod unit_tests {
+    use super::*;
+    #[test]
+    fn test_call() {
+        let tempfile = tempfile::NamedTempFile::new().unwrap();
+        let path = tempfile.path();
+        run(path);
+    }
+}
diff --git a/01.workspace/heave/src/lib.rs b/01.workspace/heave/src/lib.rs
index e5e9007..6552273 100644
--- a/01.workspace/heave/src/lib.rs
+++ b/01.workspace/heave/src/lib.rs
@@ -16,4 +16,8 @@ pub use crate::trt::from_eav::T as FromEAV;
 pub use crate::trt::to_eav::T as ToEAV;
 pub use crate::trt::to_value::T as ToValue;
 
-pub mod sqlite {}
+mod sqlite {
+    pub mod init {
+        pub use crate::fun::sqlite_init_db::run as db;
+    }
+}
diff --git a/01.workspace/heave/src/str/catalog.rs b/01.workspace/heave/src/str/catalog.rs
index 91fc33b..ded8b09 100644
--- a/01.workspace/heave/src/str/catalog.rs
+++ b/01.workspace/heave/src/str/catalog.rs
@@ -13,6 +13,10 @@ impl O {
             ..O::default()
         }
     }
+    pub fn init(&self) {
+        let path = path::Path::new(&self.path);
+        sqlite::init::db(path);
+    }
     pub fn insert(&mut self, object: impl EAV) {
         let entity = object.to_eav();
         self.items.insert(entity.id.clone(), entity);