diff --git a/thursday/hipsterplot.py b/thursday/external/hipsterplot.py
similarity index 100%
rename from thursday/hipsterplot.py
rename to thursday/external/hipsterplot.py
diff --git a/thursday/internal/__main__.py b/thursday/internal/__main__.py
new file mode 100644
index 0000000..7015191
--- /dev/null
+++ b/thursday/internal/__main__.py
@@ -0,0 +1,7 @@
+from .birect import main as birect_main
+from .hg import main as hg_main
+from .soo import main as soo_main
+
+birect_main()
+hg_main()
+soo_main()
diff --git a/thursday/internal/birect.py b/thursday/internal/birect.py
index 568f7f1..494bc03 100644
--- a/thursday/internal/birect.py
+++ b/thursday/internal/birect.py
@@ -329,7 +329,7 @@ def birect(
     return argmin, fmin
 
 
-if __name__ == "__main__":
+def main():
     import numpy as np
 
     def objective2210(x):
@@ -358,3 +358,7 @@ if __name__ == "__main__":
     )
     print("", "birect result:", *res, sep="\n")
     print("", "double checked:", objective2210(np.array(res[0], F)), sep="\n")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/thursday/internal/hg.py b/thursday/internal/hg.py
index 67e5ed2..8d6fa11 100644
--- a/thursday/internal/hg.py
+++ b/thursday/internal/hg.py
@@ -109,9 +109,9 @@ def minimize(
     return center, history
 
 
-if __name__ == "__main__":
+def main():
     # get this here: https://github.com/imh/hipsterplot/blob/master/hipsterplot.py
-    from hipsterplot import plot
+    from thursday.external.hipsterplot import plot
 
     prng = np.random.default_rng(42070)
 
@@ -150,3 +150,7 @@ if __name__ == "__main__":
 
     print("loss, before optimization: {:9.6f}".format(true_objective(init)))
     print("loss,  after optimization: {:9.6f}".format(true_objective(optimized)))
+
+
+if __name__ == "__main__":
+    main()
diff --git a/thursday/internal/soo.py b/thursday/internal/soo.py
index 73136c3..437abc2 100644
--- a/thursday/internal/soo.py
+++ b/thursday/internal/soo.py
@@ -110,9 +110,9 @@ def soo(obj, origin, sigma, evals, K=3, h_max=None, iters=None, _adapt=None):
     return coords(h, p) + origin, history
 
 
-if __name__ == "__main__":
+def main():
     # get this here: https://github.com/imh/hipsterplot/blob/master/hipsterplot.py
-    from hipsterplot import plot
+    from thursday.external.hipsterplot import plot
     import numpy as np
 
     def objective2210(x):
@@ -143,3 +143,7 @@ if __name__ == "__main__":
     plot(np.log10(history), num_y_chars=23)
     print("", "soo result:", list(optimized), history[-1], sep="\n")
     print("", "double checked:", objective2210(optimized), sep="\n")
+
+
+if __name__ == "__main__":
+    main()