Columnize second page and handle formatting fallout

CV_env.tex

@@ -22,11 +22,32 @@
     before=\startpacked,
     after=\stoppacked
 ]
-\setuphead[subject][style=\tfb\bf,color=darkgreen]
+\setuphead[subject][
+    style=\tfb\bf,
+    color=darkgreen,
+]
 
 %% Blocks
-\definedescription[timeentry][width=broad,distance=.5em,alternative=hanging]
+\definedescription[timeentry][
-\setupitemize[option=packed,textdistance=small]
+    width=broad,
+    distance=.5em,
+    alternative=hanging,
+    before=\startpacked,
+    after=\stoppacked
+]
+\definedescription[proglang][
+    width=fit,
+    sample=JS/TS,
+    headstyle=\tf,
+    text={\hbox to1em {--}},
+    before=\startpacked,
+    after=\stoppacked
+]
+\setupitemize[
+    option={packed,joinedup,nowhite},
+    width=1em,
+    distance=0pt
+]
 
 %% Enable hyperlinks
 \setupinteraction[state=start,color=lightblue]

cv.tex

@@ -78,6 +78,18 @@ App. 117, 2 Bexley Square, M3 6GP Salford, United Kingdom
 
 \stopsubject
 
+\page
+
+\startcolumns[distance=2.8em]
+
+%% Somehow columns make the title whitespace bigger
+\setuphead[subject][
+    style=\tfb\bf,
+    color=darkgreen,
+    before=\startpacked,
+    after=\stoppacked
+]
+
 \startsubject[title={Other Experience}]
 
   \starttimeentry{Summer 2016} Created a digital art exhibition for The University of Manchester
@@ -93,12 +105,9 @@ App. 117, 2 Bexley Square, M3 6GP Salford, United Kingdom
     \item Build and integration tooling
     \startitemize
       \item Nix, BuildStream, Bazel
-      \startitemize[1]
+      \item Various language-specific build tooling
-        \item Also used Buildbarn and Engflow for remote execution/caching
     \stopitemize
-      \item Various language-specific build tooling (e.g. cargo, setuptools, npm, \textellipsis)
+    \item Container and devops tooling
-    \stopitemize
-    \item Container and devops-related tooling
     \startitemize
       \item OCI container tooling (including docker registries)
       \item LXC, flatpak
@@ -151,15 +160,23 @@ App. 117, 2 Bexley Square, M3 6GP Salford, United Kingdom
 \startsubject[title={Hobbies and Interests}]
 
   \startitemize
-    \item Tabletop role-playing --- Currently acting as GM for PTU for a small group
+    \item NixOS
-    \item Badminton --- Played with The University of Manchester's badminton society
+    \startitemize
-    \item Nix
+      \item Used for most personal programming for the last two years, converted a few colleagues and friends
+    \stopitemize
+    \item Tabletop role-playing
+    \item Badminton
   \stopitemize
 
 \stopsubject
 
+\stopcolumns
+
+\placefloat[][bottom,low,none]{}{
     \startalignment[center]
+    \tfa
     References available on request
     \stopalignment
+}
 
 \stoptext