Maybe this can replace several others

buildroot/share/PlatformIO/ldscripts/custom.ld

@@ -0,0 +1,24 @@
+/**
+ * custom.ld - Linker script using custom environment defines
+ *
+ * LD_MAX_SIZE seems to be defined by the base platform build.
+ *
+ * Provided by offset_and_rename.py :
+ *   LD_MAX_DATA_SIZE <= board_upload.maximum_ram_size
+ *   LD_FLASH_OFFSET  <= board_build.offset -- also used for marlin.relocate_vtab()
+ */
+
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x20000000, LENGTH = LD_MAX_DATA_SIZE
+  rom (rx)  : ORIGIN = 0x08000000 + LD_FLASH_OFFSET, LENGTH = LD_MAX_SIZE - LD_FLASH_OFFSET
+}
+
+/* Provide memory region aliases for common.inc */
+REGION_ALIAS("REGION_TEXT", rom);
+REGION_ALIAS("REGION_DATA", ram);
+REGION_ALIAS("REGION_BSS", ram);
+REGION_ALIAS("REGION_RODATA", rom);
+
+/* Let common.inc handle the real work. */
+INCLUDE common.inc