diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..f89cba0
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "src/.local/bin/calcpy"]
+	path = src/.local/bin/calcpy
+	url = https://github.com/idanpa/calcpy
diff --git a/programs b/programs
index d7b3c00..c780896 100644
--- a/programs
+++ b/programs
@@ -56,6 +56,9 @@ python-lsp-server
 python-lsp-black
 typescript
 typescript-language-server
+# .local/bin/calcpy/ script
+ipython
+python-sympy
 
 #
 # for new systems
diff --git a/src/.config/fish/aliases.fish b/src/.config/fish/aliases.fish
index 5e33841..cf7edc1 100644
--- a/src/.config/fish/aliases.fish
+++ b/src/.config/fish/aliases.fish
@@ -33,6 +33,9 @@ function bk; $EDITOR ~/dox/not/bk.txt; end
 function rem; $EDITOR ~/dox/not/rem; end
 function ldg; $EDITOR ~/dox/not/journal.ldg; end
 
+# pocket calculator
+function calcpy; python3 ~/.local/bin/calcpy/calcpy_cli.py; end
+
 # music recognition
 function musrec
 	# if file exists
diff --git a/src/.config/ipython/profile_calcpy/ipython_config.py b/src/.config/ipython/profile_calcpy/ipython_config.py
new file mode 100644
index 0000000..c9fbc24
--- /dev/null
+++ b/src/.config/ipython/profile_calcpy/ipython_config.py
@@ -0,0 +1,4 @@
+c = get_config()
+
+c.TerminalInteractiveShell.editing_mode = "vi"
+c.TerminalInteractiveShell.show_rewritten_input = False
diff --git a/src/.config/ipython/profile_calcpy/startup/README b/src/.config/ipython/profile_calcpy/startup/README
new file mode 100644
index 0000000..61d4700
--- /dev/null
+++ b/src/.config/ipython/profile_calcpy/startup/README
@@ -0,0 +1,11 @@
+This is the IPython startup directory
+
+.py and .ipy files in this directory will be run *prior* to any code or files specified
+via the exec_lines or exec_files configurables whenever you load this profile.
+
+Files will be run in lexicographical order, so you can control the execution order of files
+with a prefix, e.g.::
+
+    00-first.py
+    50-middle.py
+    99-last.ipy
diff --git a/src/.config/ipython/profile_calcpy/startup/startup.ipy b/src/.config/ipython/profile_calcpy/startup/startup.ipy
new file mode 100644
index 0000000..795bf6a
--- /dev/null
+++ b/src/.config/ipython/profile_calcpy/startup/startup.ipy
@@ -0,0 +1,4 @@
+# vim: ft=python
+
+# don't need parentheses on some function calls
+%autocall 2
diff --git a/src/.local/bin/calcpy b/src/.local/bin/calcpy
new file mode 160000
index 0000000..502e4d3
--- /dev/null
+++ b/src/.local/bin/calcpy
@@ -0,0 +1 @@
+Subproject commit 502e4d3c811325343c2f71406edae75a4201b30c