diff --git a/Cargo.lock b/Cargo.lock
index 48b605e..a5190bd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2755,10 +2755,11 @@ dependencies = [
 
 [[package]]
 name = "kxio"
-version = "3.1.0"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6fd1ff0b499ac9329ab39bdc334571c0c9488aec5cdc84b4463b7a65a9e276b"
+checksum = "b711909378294af8b006b4df66e8b2de75fc0c2c98ff9ea7ef1422ae7c859a3d"
 dependencies = [
+ "base64 0.22.1",
  "bytes",
  "derive_more",
  "http 1.1.0",
@@ -2766,6 +2767,7 @@ dependencies = [
  "reqwest",
  "tempfile",
  "tokio",
+ "tracing",
  "url",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 26f9ae5..2c9fedc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -60,7 +60,7 @@ async-trait = "0.1"
 git-url-parse = "0.4"
 
 # fs/network
-kxio = "3.1"
+kxio = "4.0"
 
 # TOML parsing
 serde = { version = "1.0", features = ["derive"] }
diff --git a/Dockerfile b/Dockerfile
index dfa8aa0..f5334d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # Leveraging the pre-built Docker images with
 # cargo-chef and the Rust toolchain
-FROM git.kemitix.net/kemitix/git-next-builder:2024.08.04 AS chef
+FROM git.kemitix.net/kemitix/git-next-builder:2024.12.28 AS chef
 WORKDIR /app
 
 FROM chef AS planner
diff --git a/crates/cli/src/tui/logging.rs b/crates/cli/src/tui/logging.rs
index 954a501..e985ef2 100644
--- a/crates/cli/src/tui/logging.rs
+++ b/crates/cli/src/tui/logging.rs
@@ -9,10 +9,18 @@ use tracing_subscriber::{self, layer::SubscriberExt, util::SubscriberInitExt, La
 
 lazy_static! {
     pub static ref PROJECT_NAME: String = env!("CARGO_CRATE_NAME").to_uppercase();
-    pub static ref DATA_FOLDER: Option<PathBuf> =
-        std::env::var(format!("{}_DATA", PROJECT_NAME.clone()))
-            .ok()
-            .map(PathBuf::from);
+    pub static ref DATA_FOLDER: PathBuf = std::env::var(format!("{}_DATA", PROJECT_NAME.clone()))
+        .ok()
+        .map(PathBuf::from)
+        .map_or_else(
+            || {
+                project_directory().map_or_else(
+                    || PathBuf::from(".").join(".data"),
+                    |proj_dirs| proj_dirs.data_local_dir().to_path_buf(),
+                )
+            },
+            |data_folder| data_folder,
+        );
     pub static ref LOG_ENV: String = format!("{}_LOGLEVEL", PROJECT_NAME.clone());
     pub static ref LOG_FILE: String = format!("{}.log", env!("CARGO_PKG_NAME"));
 }
@@ -21,23 +29,9 @@ fn project_directory() -> Option<ProjectDirs> {
     ProjectDirs::from("net", "kemitix", env!("CARGO_PKG_NAME"))
 }
 
-pub fn get_data_dir() -> PathBuf {
-    let directory = DATA_FOLDER.clone().map_or_else(
-        || {
-            project_directory().map_or_else(
-                || PathBuf::from(".").join(".data"),
-                |proj_dirs| proj_dirs.data_local_dir().to_path_buf(),
-            )
-        },
-        |data_folder| data_folder,
-    );
-    directory
-}
-
 pub fn initialize_logging() -> Result<()> {
-    let directory = get_data_dir();
-    std::fs::create_dir_all(directory.clone())?;
-    let log_path = directory.join(LOG_FILE.clone());
+    std::fs::create_dir_all(DATA_FOLDER.clone())?;
+    let log_path = DATA_FOLDER.join(LOG_FILE.clone());
     let log_file = std::fs::File::create(log_path)?;
     std::env::set_var(
         "RUST_LOG",
diff --git a/crates/core/src/git/repo_details.rs b/crates/core/src/git/repo_details.rs
index fa6c4cd..f4d2200 100644
--- a/crates/core/src/git/repo_details.rs
+++ b/crates/core/src/git/repo_details.rs
@@ -145,7 +145,7 @@ impl RepoDetails {
         let file = fs.file(config_filename);
         let config_file = file.reader()?;
         let mut config_lines = config_file
-            .lines()
+            .lines()?
             .map(ToOwned::to_owned)
             .collect::<Vec<_>>();
         tracing::debug!(?config_lines, "original file");
diff --git a/crates/core/src/git/tests.rs b/crates/core/src/git/tests.rs
index 7c6b237..2955eb8 100644
--- a/crates/core/src/git/tests.rs
+++ b/crates/core/src/git/tests.rs
@@ -326,22 +326,22 @@ pub mod given {
         )
     }
 
-    #[allow(clippy::unwrap_used)]
+    #[allow(clippy::expect_used)]
     pub fn a_bare_repo_with_url(path: &Path, url: &str, fs: &kxio::fs::FileSystem) {
         // create a basic bare repo
-        let repo = gix::prepare_clone_bare(url, fs.base()).unwrap();
+        let repo = gix::prepare_clone_bare(url, fs.base()).expect("prepare_clone_bare");
         repo.persist();
         // load config file
         let file = fs.file(&path.join("config"));
-        let config_file = file.reader().unwrap();
+        let config_file = file.reader().expect("reader");
         // add use are origin url
-        let mut config_lines = config_file.lines().collect::<Vec<_>>();
+        let mut config_lines = config_file.lines().expect("lines").collect::<Vec<_>>();
         config_lines.push(r#"[remote "origin"]"#);
         let url_line = format!(r#"   url = "{url}""#);
         tracing::info!(?url, %url_line, "writing");
         config_lines.push(&url_line);
         // write config file back out
-        file.write(config_lines.join("\n").as_str()).unwrap();
+        file.write(config_lines.join("\n").as_str()).expect("write");
     }
 
     #[allow(clippy::unwrap_used)]