feat: overhaul for relaunch

-   Update .gitignore.
-   Enhance Makefile.
    -   `data` target rebuilds datasets.
    -   `incremental` target rebuilds notebooks that have changed.
-   Rename existing lessons to be lesson/dd_specific.py (two digits).
-   Fix bug in scripts/build.py's handling of YAML headers.
-   Import SQL tutorial.
-   Add scripts to regenerate SQLite databases.
-   Build `marimo_learn` package (separate repository) with utilities
    to localize SQLite database files.
-   Add tutorial on queueing theory.

Author: gvwilson

.gitignore

@@ -175,3 +175,6 @@ __marimo__
 
 # Generated site content
 _site/
+
+# Editors
+*~

.typos.toml

@@ -15,7 +15,9 @@ extend-ignore-re = [
 
 # Words to explicitly accept
 [default.extend-words]
+bimap = "bimap"
 pn = "pn"
+setp = "setp"
 
 # You can also exclude specific files or directories if needed
 # [files]

Makefile

@@ -1,13 +1,38 @@
+DATA := \
+sql/public/lab.db \
+sql/public/penguins.db \
+sql/public/survey.db
+
+NOTEBOOK_DIR := \
+daft \
+duckdb \
+functional \
+optimization \
+polars \
+probability \
+python \
+sql
+
+NOTEBOOK_SRC := $(foreach dir,$(NOTEBOOK_DIR),$(wildcard $(dir)/*.py))
+
+NOTEBOOK_OUT := $(patsubst %.py,_site/%.html,$(NOTEBOOK_SRC))
+
 # Default target.
 all : commands
 
 ## commands : show all commands.
 commands :
 	@grep -h -E '^##' ${MAKEFILE_LIST} | sed -e 's/## //g' | column -t -s ':'
 
+## data: rebuild datasets
+data: ${DATA}
+
+## incremental: only rebuild out-of-date parts of the site
+incremental: ${NOTEBOOK_OUT}
+
 ## install: install minimal required packages into current environment.
 install:
-	uv pip install marimo jinja2 markdown
+	uv pip install faker jinja2 markdown marimo python-frontmatter ruff
 
 ## build: build entire site.
 build:
@@ -18,7 +43,36 @@ build:
 serve:
 	uv run python -m http.server --directory _site
 
+## ---: ---
+
 ## clean: clean up stray files.
 clean:
 	@find . -name '*~' -exec rm {} +
 	@find . -name '.DS_Store' -exec rm {} +
+
+## settings: show variables
+settings:
+	@echo DATA ${DATA}
+	@echo NOTEBOOK_DIR ${NOTEBOOK_DIR}
+	@echo NOTEBOOK_SRC ${NOTEBOOK_SRC}
+	@echo NOTEBOOK_OUT ${NOTEBOOK_OUT}
+
+# subsidiary targets
+
+_site/%.html: %.py
+	uv run marimo export html-wasm --force --mode edit $< -o $@ --sandbox
+
+sql/public/lab.db: scripts/create_sql_lab.sql
+	@rm -f $@
+	@mkdir -p sql/public
+	sqlite3 $@ < $<
+
+sql/public/penguins.db: scripts/create_sql_penguins.py data/penguins.csv
+	@rm -f $@
+	@mkdir -p sql/public
+	python $< data/penguins.csv $@
+
+sql/public/survey.db: scripts/create_sql_survey.py
+	@rm -f $@
+	@mkdir -p sql/public
+	python $< $@ 192837