diff --git a/Dockerfile.dev b/Dockerfile.dev
index 6e80ee94d..8ab1eae36 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -1,30 +1,36 @@
 # For use via `devcontainer.json`. The docker-compose-dev file sets some other
 # important variables.
 
-# we use ubuntu because 'just' isn't available on debian 13
-# haha.. haha...
-FROM ubuntu:24.10
+FROM debian:13
 
 WORKDIR /tachi
 
-RUN apt update
+RUN DEBIAN_FRONTEND=noninteractive apt-get update \
+	&& apt-get upgrade -y \
+	&& apt-get install -y \
+		# essentials
+		git npm locales sudo \
+		# docs pythonisms
+		python-is-python3 pip mkdocs mkdocs-material \
+		# nice to haves
+		gh fish just fzf curl wget parallel neovim fd-find bat \
+	# uninstall lynx so people don't get a CLI browser that can't load anything when they do `gh auth login`
+	&& apt-get purge -y lynx
 
-# essentials
-RUN apt install -y git npm locales sudo
+# so apt doesn't complain about the lack of a dialog-like program
+ENV DEBIAN_FRONTEND=readline
+
+# `fd` is called `fdfind` on debian. Awesome.
+RUN ln -s $(which fdfind) /usr/bin/fd
 
 # setup locales
 # https://stackoverflow.com/questions/28405902/how-to-set-the-locale-inside-a-debian-ubuntu-docker-container
 RUN echo 'en_US.UTF-8 UTF-8' > /etc/locale.gen && locale-gen
-ENV LANG en_US.UTF-8
-ENV LANGUAGE en_US:en
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8 LANGUAGE=en_US:en LC_ALL=en_US.UTF-8
 
 # nodeisms
 RUN npm install --silent -g pnpm@8.15.6
 
-# docs pythonisms
-RUN apt install -y python-is-python3 pip mkdocs mkdocs-material
-
 # https://github.com/python-babel/babel/issues/990
 # it wouldn't be python without needing absurd global state manipulation to fix
 # an incoherent error message
@@ -33,23 +39,24 @@ RUN rm -f /etc/localtime && ln -s /usr/share/zoneinfo/Etc/UTC /etc/localtime
 # Fix locale issue perl repeatedly complains about
 RUN echo "LC_ALL=en_US.UTF-8\nLANG=en_US.UTF-8" > /etc/default/locale
 
-# nice to haves
-RUN apt install -y gh fish just fzf curl wget parallel neovim fd-find bat
+# create tachi user and give them sudo
+RUN addgroup --gid 1000 tachi \
+	&& adduser --disabled-password --uid 1000 --gid 1000 --home /home/tachi tachi \
+ 	&& echo "tachi ALL=(ALL:ALL) NOPASSWD: ALL" >> /etc/sudoers
 
-# `fd` is called `find-fd` on ubuntu. Awesome.
-RUN ln -s $(which fdfind) /usr/bin/fd
+# Make the /tachi working directory owned by our user instead of root. Docker volumes
+# are mounted as root UNLESS the folder already exists inside the host and has non-root
+# ownership. This is the only way to declare a volume in docker has non-root ownership.
+# Unbelievably obscure.
+RUN chown -R tachi:tachi /tachi
 
-# rename ubuntu user to tachi and give them sudo
-RUN usermod -l tachi ubuntu          && \
-	usermod -d /home/tachi -m tachi  && \
-	echo "tachi ALL = NOPASSWD : ALL" >> /etc/sudoers
+USER tachi
 
-# Docker volumes are mounted as root UNLESS the folder already exists inside the host
-# and has non-root ownership. This is the only way to declare a volume in docker has
-# non-root ownership. Unbelievably obscure.
-RUN mkdir node_modules && \
-	mkdir .pnpm-store  && \
-	chown tachi:1000 node_modules .pnpm-store
+# see above comment about non-root volumes
+RUN mkdir node_modules .pnpm-store
+
+# make pnpm be quiet about new versions
+RUN echo "update-notifier=false" >> /home/tachi/.npmrc
 
 # keep container alive indefinitely
 CMD ["/bin/fish"]
diff --git a/dev/deb/mongodb-database-tools-ubuntu2204-x86_64-100.10.0.deb b/dev/deb/mongodb-database-tools_100.13.0_amd64.deb
similarity index 69%
rename from dev/deb/mongodb-database-tools-ubuntu2204-x86_64-100.10.0.deb
rename to dev/deb/mongodb-database-tools_100.13.0_amd64.deb
index 8783384de..9ca277a45 100644
Binary files a/dev/deb/mongodb-database-tools-ubuntu2204-x86_64-100.10.0.deb and b/dev/deb/mongodb-database-tools_100.13.0_amd64.deb differ