diff --git a/core/ext/mod.rs b/core/ext/mod.rs
index 67fd78491..b6fb67fbb 100644
--- a/core/ext/mod.rs
+++ b/core/ext/mod.rs
@@ -153,6 +153,7 @@ impl Database {
     }
 
     pub fn register_builtins(&self) -> Result<(), String> {
+        #[allow(unused_variables)]
         let ext_api = self.build_limbo_ext();
         #[cfg(feature = "uuid")]
         if unsafe { !limbo_uuid::register_extension_static(&ext_api).is_ok() } {
diff --git a/core/io/mod.rs b/core/io/mod.rs
index f88a5d554..50b4551bf 100644
--- a/core/io/mod.rs
+++ b/core/io/mod.rs
@@ -166,14 +166,17 @@ impl Buffer {
 cfg_block! {
     #[cfg(all(target_os = "linux", feature = "io_uring"))] {
         mod io_uring;
+        #[cfg(feature = "fs")]
         pub use io_uring::UringIO;
         mod unix;
+        #[cfg(feature = "fs")]
         pub use unix::UnixIO;
         pub use io_uring::UringIO as PlatformIO;
     }
 
     #[cfg(any(all(target_os = "linux",not(feature = "io_uring")), target_os = "macos"))] {
         mod unix;
+        #[cfg(feature = "fs")]
         pub use unix::UnixIO;
         pub use unix::UnixIO as PlatformIO;
     }
diff --git a/core/io/unix.rs b/core/io/unix.rs
index effd94bf5..d06b71770 100644
--- a/core/io/unix.rs
+++ b/core/io/unix.rs
@@ -22,6 +22,7 @@ pub struct UnixIO {
 }
 
 impl UnixIO {
+    #[cfg(feature = "fs")]
     pub fn new() -> Result<Self> {
         debug!("Using IO backend 'syscall'");
         Ok(Self {
diff --git a/core/storage/database.rs b/core/storage/database.rs
index e59519f38..7e30c9215 100644
--- a/core/storage/database.rs
+++ b/core/storage/database.rs
@@ -1,4 +1,6 @@
-use crate::{error::LimboError, io::Completion, Buffer, Result};
+#[cfg(feature = "fs")]
+use crate::error::LimboError;
+use crate::{io::Completion, Buffer, Result};
 use std::{cell::RefCell, rc::Rc};
 
 /// DatabaseStorage is an interface a database file that consists of pages.
diff --git a/core/translate/expr.rs b/core/translate/expr.rs
index 8ddb580df..36acfa935 100644
--- a/core/translate/expr.rs
+++ b/core/translate/expr.rs
@@ -159,6 +159,7 @@ macro_rules! expect_arguments_min {
     }};
 }
 
+#[allow(unused_macros)]
 macro_rules! expect_arguments_even {
     (
         $args:expr,