diff --git a/dot-config/zsh/interactive/skim.zsh b/dot-config/zsh/interactive/skim.zsh
deleted file mode 100644
index 223750d..0000000
--- a/dot-config/zsh/interactive/skim.zsh
+++ /dev/null
@@ -1,8 +0,0 @@
-#! zsh
-if (( $+commands[sk] )); then
-	# TODO: figure out where lotabout/skim puts these Zsh support files on non-Homebrew installs
-	[[ $- == *i* ]] && source /usr/local/opt/sk/share/zsh/site-functions/completion.zsh 2>/dev/null
-	source /usr/local/opt/sk/share/zsh/site-functions/key-bindings.zsh
-else
-	bindkey '^R' history-incremental-search-backward
-fi
diff --git a/dot-config/zsh/login/langs.zsh b/dot-config/zsh/login/langs.zsh
index 24e9141..6ea4d1d 100644
--- a/dot-config/zsh/login/langs.zsh
+++ b/dot-config/zsh/login/langs.zsh
@@ -2,6 +2,15 @@
 
 local -a newbins
 
+# asdf
+export ASDF_CONFIG_FILE=$XDG_CONFIG_HOME/asdf/asdfrc
+export ASDF_DATA_DIR=$XDG_DATA_HOME/asdf
+# Don't add asdf's directories to the command path, because evaluating its
+# version resolution every time you call a tool is really slow. Instead just
+# configure asdf to respect XDG base directories, then rely on Direnv to
+# resolve paths properly for each project, as described here:
+# https://github.com/zimfw/asdf#how-to-configure-asdf-to-work-with-the-direnv-installed-with-my-system-package-manager
+
 # docker
 export DOCKER_CONFIG=$XDG_CONFIG_HOME/docker
 
diff --git a/dot-config/zsh/zimrc.zsh b/dot-config/zsh/zimrc.zsh
index 4234941..4ebd930 100644
--- a/dot-config/zsh/zimrc.zsh
+++ b/dot-config/zsh/zimrc.zsh
@@ -39,6 +39,7 @@ zmodule mollifier/cd-gitroot --fpath . --autoload cd-gitroot
 zmodule zsh-users/zsh-autosuggestions
 
 (( ${+commands[brew]} )) && zmodule homebrew
+zeval-if-installed atuin 'atuin init zsh --disable-up-arrow'
 zeval-if-installed direnv 'direnv hook zsh'
 zeval-if-installed scmpuff 'scmpuff init --shell=zsh'