diff --git a/.gitignore b/.gitignore
index dba9fdb..e3e4b7c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,61 +1,4 @@
- # Prerequisites
-*.d
-
-# Object files
-*.o
-*.ko
-*.obj
-*.elf
-
-# Linker output
-*.ilk
-*.map
-*.exp
-
-# Precompiled Headers
-*.gch
-*.pch
-
-# Libraries
-*.lib
-*.a
-*.la
-*.lo
-
-# Shared objects (inc. Windows DLLs)
-*.dll
-*.so
-*.so.*
-*.dylib
-
-# Executables
-*.exe
-*.out
-*.app
-*.i*86
-*.x86_64
-*.hex
-
-# Debug files
-*.dSYM/
-*.su
-*.idb
-*.pdb
-
-# Kernel Module Compile Results
-*.mod*
-*.cmd
-.tmp_versions/
-modules.order
-Module.symvers
-Mkfile.old
-dkms.conf
-
-# CCLS
-.ccls/
-.ccls-cache/
-
-# Scheme
+ 
 *.ss~
 *.ss#*
 .#*.ss
diff --git a/how_to_design_programs/test.scm b/how_to_design_programs/test.scm
deleted file mode 100644
index 6f1f7b4..0000000
--- a/how_to_design_programs/test.scm
+++ /dev/null
@@ -1 +0,0 @@
-#lang racket
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