Office

An EPUB,and its code view

Sigil, on a Void Linux desktop of your own.Edit the book, validate it, and preview the page beside the markup.

Sigil 2.4.02 cores · 4 GBOpens in a browser tab
hub://sigil

$ dxflow workflow create --identity sigil hub://sigil --start --link

01Pick a machinecores, memory and a rate per hour
02Create the workflowpulled from the hub, once
03Run it, then stopstopped when the work is done
The application

Both views,at once

The rendered page and the XHTML behind it, kept in step.

The whole package

Spine, manifest, table of contents and metadata, editable rather than generated.

Validation as you go

EPUBCheck on the file you have, so a broken book is caught before it ships.

Live preview

The page as a reader will see it, updating while you edit the markup.

How you run it

Every defaultis one override away

The session reads its settings from the environment, so you set them on the start line.

VNC_PASSWORDWhat the tab asks for. It ships as dxflow, and everyone reading this knows that.
PANEL and TASKBARBoth hidden, so the editor has the whole screen. Show either one to get the desktop back.
AUDIOOff here. Turn it on and the desktop sound is streamed beside the picture.
start it your way

$ dxflow workflow start sigil --override env.app.VNC_PASSWORD=something-long

$ dxflow workflow start sigil --override env.app.TASKBAR=show --link

The session

The editorfills the screen

Streamed to your browser, with Sigil already maximized.

6082Browserin the tab, at /vnc.html
5901VNCin a native client
/volumeStorageyour files, kept between runs
Open it from anywhereStart with --link and the session comes back on an HTTPS address.
Set a password firstVNC_PASSWORD defaults to dxflow, and everyone can read this page.
Good to know

An EPUB is a zipfull of markup

Sigil never hides that. The code view is the file, and the preview is what a reader will make of it.

Edit the XHTML directly

When a converted book comes out wrong, the fix is in the markup. This is the editor that lets you reach it.

Validate before you ship

Structural checks catch the broken links and missing manifest entries a store would reject.

Books belong on the volume

Keep the EPUB and its assets under /volume so the next start opens the same project.

The image

Pulled once,then it stays

Sigil arrives as one image. This is what comes down the first time, and what the disk should have free for it.

505Mamd64compressed, the way the registry counts it
488Marm64compressed, the way the registry counts it
20GOn diskunpacked, with room to work beside it
ghcr.io/dxflow-ai/sigil:latestPublished from the hub, pulled on the first start and kept for the ones after it.
Either architectureamd64 and arm64 are both published, and the machine pulls the one it runs.
What it asks for

What it wants,and what it needs

The definition asks for 2 cores and 4 GB. The image comes up on less than that, and a start given --fit trims the ask to whatever the machine actually has.

2 cores · 4 GBAsks forwhat the definition writes down
2 cores · 2 GBRuns onthe least the image comes up on
Not neededGPUit works on the cores alone
The ask is not the floorThe definition writes down what suits the work. The image itself starts on less, which is what the second figure is.
--fit caps it to the hostA start given --fit trims each step to what the machine actually has, for that start alone. The definition is never rewritten.

Machines that fit it

Sigil asks for 2 cores and 4 GB. Cheapest first.

E2 Medium
$0.042/ hour2 cores · 4 GBStart this machine
T3 Medium
$0.052/ hour2 cores · 4 GBStart this machine
B2s
$0.052/ hour2 cores · 4 GBStart this machine
Run Sigil on your own machinePick a machine that meets it, and it opens about a minute after you ask.