SCENE 01 / OF 07 — THE WINDOW

JJUGGL.dev

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SCENE 02 / OF 07 — THE FLOOR PLAN
↳ on the practice

JJUGGL.dev is a small, deliberate development studio operating out of a single floor in the Shinjuku district. We make quiet, durable software for clients who prefer engineering correspondence to roadmaps. Our work tends toward backend systems, custom tooling, and the occasional architectural prototype that is closer to a drawing than a deployment.

We do not scale. We do not pitch. We do not maintain a marketing department. Most engagements begin by letter and end with a working machine.

※ fig. 02 — district map, civic dusk, 19:14 JST
SCENE 03 / OF 07 — THE TERMINAL
~ /jjuggl — vt100 — 80x24
jjuggl@studio:~$
SCENE 04 / OF 07 — THE DIAGONAL
↳ the day's work
  • orochi · distributed log compactor2024
  • koma · static type-checker for legacy schemas2024
  • shoji · text-routing daemon for mail rooms2023
  • teien · CRDT garden for collaborative editors2023
  • ginza · billing reconciliation engine2022
  • hosokawa · low-latency tick feed bridge2022
↳ the night's work
  • tsugi · experiments in incremental compilationw.i.p.
  • akari · ambient telemetry as ambient soundw.i.p.
  • sokuryo · land-surveying tool for softwarew.i.p.
  • yobi · a calling-card protocol for engineersw.i.p.
the line where the studio crosses from review into invention.
SCENE 05 / OF 07 — THE WINDOWS
the code does not stop when the office does.
— j.j., 02:47, march
hover any window. each one is a story.
SCENE 06 / OF 07 — THE STACK
l6
research & prototype
where we ask whether a problem deserves software at all. small machines, hand-cut, often discarded.
l5
interfaces
command lines, internal tools, single-purpose consoles for engineers who already know what they want.
l4
backend craft
long-running services, careful schemas, the kind of code that fades into the wall and is forgotten on purpose.
l3
data & integrity
migrations measured in years. archival formats. the boring half of a system that decides whether the rest survives.
l2
systems & infra
deployment as architecture. observability as drafting. infrastructure written down rather than provisioned.
l1
correspondence
the lobby. where engagements begin. letters first, calls only by appointment, decisions in writing.
SCENE 07 / OF 07 — THE CLOSE

// the office is closed.
the code is still running.

email studio@jjuggl.dev
post jjuggl.dev — 7F, 4-1-22 nishi-shinjuku, shinjuku-ku, tokyo 160-0023
status for serious commissions only. responses arrive at dusk.
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