diff --git a/lvgl-codegen/Cargo.toml b/lvgl-codegen/Cargo.toml
index 8c9722a2..570affe3 100644
--- a/lvgl-codegen/Cargo.toml
+++ b/lvgl-codegen/Cargo.toml
@@ -15,4 +15,3 @@ lazy_static = "1.4.0"
 proc-macro2 = "1.0.56"
 Inflector = "0.11.4"
 syn = { version = "2.0.13", features = ["full"]}
-
diff --git a/lvgl-sys/Cargo.toml b/lvgl-sys/Cargo.toml
index 6ef36802..bf5a16c3 100644
--- a/lvgl-sys/Cargo.toml
+++ b/lvgl-sys/Cargo.toml
@@ -10,7 +10,7 @@ repository = "https://github.com/rafaelcaricio/lvgl-rs"
 readme = "README.md"
 categories = ["external-ffi-bindings", "embedded", "gui", "no-std"]
 keywords = ["littlevgl", "lvgl"]
-build = "build.rs"
+build = "build/main.rs"
 links = "lvgl"
 exclude = [
     "vendor/lvgl/demos",
@@ -30,6 +30,7 @@ cty = "0.2.2"
 [build-dependencies]
 cc = "1.0.79"
 bindgen = "0.64.0"
+serde = { version = "1.0.159", features = ["derive"] }
 
 [features]
 use-vendored-config = []
diff --git a/lvgl-sys/build/config.rs b/lvgl-sys/build/config.rs
new file mode 100644
index 00000000..43a06cfe
--- /dev/null
+++ b/lvgl-sys/build/config.rs
@@ -0,0 +1,128 @@
+#[repr(i32)]
+enum ColorDepth {
+    D1 = 1,
+    D8 = 8,
+    D16 = 16,
+    D32 = 32,
+}
+
+#[repr(i32)]
+enum ColorMixRoundOFS {
+    R0 = 0,
+    R64 = 64,
+    R128 = 128,
+    R192 = 192,
+    R254 = 254,
+}
+
+enum LogLevel {
+    Trace,
+    Info,
+    Warn,
+    Error,
+    User,
+    None,
+}
+
+pub struct LvConfig {
+    // Color
+    color_depth: ColorDepth,
+    color_16_swap: bool,
+    color_screen_transp: bool,
+    color_mix_round_ofs: ColorMixRoundOFS,
+    color_chroma_hex: u64,
+    // Memory
+    mem_custom: bool,
+    mem_size: u128,
+    mem_adr: usize, // TODO: is this fine when cross-compiling to targets w/ different usize?
+    mem_custom_include: String,
+    mem_custom_alloc: String,
+    mem_custom_free: String,
+    mem_custom_realloc: String,
+    mem_buf_max_num: u32,
+    memcpy_memset_std: bool,
+    // HAL
+    disp_def_refr_period: u32,
+    indev_def_read_period: u32,
+    tick_custom: bool,
+    tick_custom_include: String,
+    tick_custom_sys_time_expr: String,
+    dpi_def: u32,
+    // Drawing
+    draw_complex: bool,
+    shadow_cache_size: u128,
+    circle_cache_size: u128,
+    layer_simple_buf_size: u128,
+    layer_simple_fallback_buf_size: u128,
+    img_cache_def_size: u128,
+    gradient_max_stops: u32,
+    grad_cache_def_size: u128,
+    dither_grdient: bool,
+    dither_gradient_error_diffusion: bool,
+    disp_rot_max_buf: u128,
+    // GPU
+    use_gpu_arm2d: bool,
+    use_gpu_stm32_dma2d: bool,
+    gpu_dma2d_cmsis_include: String,
+    use_gpu_swm341_dma2d: bool,
+    gpu_dma2d_swm341_include: String,
+    use_gpu_nxp_pxp: bool,
+    use_gpu_nxp_pxp_auto_init: bool,
+    use_gpu_nxp_vg_lite: bool,
+    use_gpu_sdl: bool,
+    gpu_sdl_include_path: String,
+    gpu_sdl_lru_size: u128,
+    gpu_sdl_custom_blend_mode: String,
+    // Logging
+    use_log: bool,
+    log_level: LogLevel,
+    log_printf: bool,
+    log_trace_mem: bool,
+    log_trace_timer: bool,
+    log_trace_indev: bool,
+    log_trace_disp_refr: bool,
+    log_trace_event: bool,
+    log_trace_obj_create: bool,
+    log_trace_layout: bool,
+    log_trace_anim: bool,
+    // Asserts
+    use_assert_null: bool,
+    use_assert_malloc: bool,
+    use_assert_style: bool,
+    use_assert_mem_integrity: bool,
+    use_assert_obj: bool,
+    assert_handler_include: String,
+    assert_handler: String,
+    // Others
+    use_perf_monitor: bool,
+    use_perf_monitor_pos: u8, // FIXME
+    use_mem_monitor: bool,
+    use_mem_monitor_pos: u8, // FIXME
+    use_refr_debugger: bool,
+    sprintf_custom: bool,
+    sprintf_custom_include: String,
+    snprintf: String,
+    vsnprintf: String,
+    sprintf_use_float: bool,
+    use_user_data: bool,
+    enable_gc: bool,
+    gc_include: String,
+    big_endian_system: bool,
+    attribute_tick_inc: Option<String>,
+    attribute_timer_handler: Option<String>,
+    attribute_flush_ready: Option<String>,
+    attribute_mem_align_size: u32,
+    attribute_mem_align: Option<String>,
+    attribute_large_const: Option<String>,
+    attribute_large_ram_array: Option<String>,
+    attribute_fast_mem: Option<String>,
+    attribute_dma: Option<String>,
+    export_const_int: u8, //FIXME
+    use_large_coord: bool,
+}
+
+pub struct DrvConfig {
+
+}
+
+pub fn conf_gen() {}
diff --git a/lvgl-sys/build.rs b/lvgl-sys/build/main.rs
similarity index 99%
rename from lvgl-sys/build.rs
rename to lvgl-sys/build/main.rs
index 7edfe23b..189cbc15 100644
--- a/lvgl-sys/build.rs
+++ b/lvgl-sys/build/main.rs
@@ -6,6 +6,8 @@ use std::{
     path::{Path, PathBuf},
 };
 
+mod config;
+
 static CONFIG_NAME: &str = "DEP_LV_CONFIG_PATH";
 
 // See https://github.com/rust-lang/rust-bindgen/issues/687#issuecomment-450750547