E-ink journaling and templates

Journaling on e-paper: writing tablets (reMarkable, Kindle Scribe, Boox, Supernote, Kobo Elipsa), the hyperlinked PDF planner market that grew around them, the design limits of e-ink screens, calm technology, and what all of it means for the X4 e-ink companion to Journalwright Studio's printed books.

Checked: 2026-09-28. Points marked (uncertain) could not be confirmed from a primary source.

---

1. At a glance

2. Summary

E-ink journaling means writing by hand with a stylus on an electrophoretic screen that looks like paper, reflects light instead of shining it, and holds its image without power. Around these devices a large market of templates and hyperlinked PDF planners grew up: files with tabs and links that let you jump from a year view to a month to a day. The screens are slow, greyscale or muted colour, and prone to "ghosting"; good e-ink design works with those limits by moving as little as possible, using outlines rather than big black fills, and keeping navigation shallow. Calm technology (Weiser and Brown, 1995; Amber Case's eight principles) gives the design language: stay in the periphery, ask for the least attention, work even when it fails. For Journalwright Studio the lesson is that paper stays the record and the X4 stays a quiet glance and a button check-in, never a second journal that competes for attention.

3. History and origin

Who and what

• E Ink. Electrophoretic "electronic ink" came out of MIT Media Lab work in the mid-1990s and E Ink Corporation (1997). Millions of microcapsules hold charged black and white particles in clear fluid; an electric field pulls one colour to the top. The display needs power only when the image changes (E Ink, "How it works").
• Ubiquitous and calm computing. Mark Weiser (Xerox PARC) wrote "The Computer for the 21st Century" (Scientific American, September 1991), arguing computers should fade into the background. With John Seely Brown he wrote "Designing Calm Technology" (21 December 1995), the founding text for calm design.
• Amber Case turned calm technology into eight practical principles and the O'Reilly book Calm Technology: Principles and Patterns for Non-Intrusive Design (2015). Case later set up the Calm Tech Institute, which certifies products; the institute lists the reMarkable Paper Pro among certified products.

Timeline of journaling-relevant e-ink

Cultural context

Paper planners (Bullet Journal 2013, Hobonichi, Passion Planner) and iPad planners (GoodNotes, Notability) created a buying habit: a new planner file every year. E-ink tablets promised the paper feel without the glare, notifications and app-switching of an iPad. The hyperlinked planner market moved over, sold mostly as instant PDF downloads. At the same time people tired of phones began looking for "dumb" or "calm" devices; e-paper became a symbol of that.

Key quotes

• Weiser (1991), opening line as widely quoted: "The most profound technologies are those that disappear." (The Scientific American landing page did not show this line; the quote is from the full article.)
• Weiser and Brown (1995): "A calm technology will move easily from the periphery of our attention, to the center, and back."
• Weiser and Brown (1995), on why the periphery matters: they call our connection to the world around us "locatedness," "the fundamental gift that the periphery gives us."
• Amber Case, principle 1: "Technology should require the smallest possible amount of attention."
• Amber Case, principle 6: "Technology should work even when it fails."

4. Philosophy and principles

Stated goals of e-ink writing devices: paper feel, focus, no distraction, long battery, one place for all notes. reMarkable sells "distraction-free" as the core promise.

Core beliefs behind calm technology:

1. Attention is scarce; tools should ask for as little as possible.
2. Information can live in the periphery (a glance, a shape, a light) and come to the centre only when needed.
3. The right amount of technology is the minimum needed.
4. Tools should fail gracefully: a sleeping e-ink screen still shows the last useful image.
5. Tools should respect social norms and people's dignity.

Problems e-ink journaling solves:

• Glare and blue light at night (reflective screen; front lights are optional and dim).
• Too many notebooks: one device holds years of pages.
• Search and backup: some devices convert handwriting to text.
• Distraction: no feeds, no browser (on most), no notifications.

Problems it creates: cost, charging, lock-in to one brand's format, the temptation to "optimise" the planner instead of using it, and loss of the physical archive.

5. Core components

5.1 Devices

• reMarkable 2 (2020): black and white, no light. Paper Pro (2024): 11.8" Canvas Color with a reading light. Paper Pro Move (2025): 7.3" colour, reading light, "up to 2 weeks" battery, from $449.
• Kindle Scribe (2022, refreshed 2024): 10.2", 300 ppi, warm light, "18 provided templates" for "notebooks, journals, and lists," AI summaries of up to 15 pages (2024).
• Boox (Onyx): Android-based, so any app runs, which is both power and distraction. Firmware 4.0 (January 2025) added file-based notes, PNG templates and clickable PDF hyperlinks.
• Supernote (Ratta): closed, calm system. Custom templates are PNG/JPG/WEBP at 1404×1872 (A5 X, A6 X, A6 X2 Nomad) or 1920×2560 (A5 X2 Manta), dropped in the MyStyle folder.
• Kobo Elipsa 2E (and Sage, Libra Colour with stylus): Basic notebooks (free drawing, backgrounds, export PNG/JPEG/PDF) and Advanced notebooks (write between lines, convert to text, export docx/text/HTML).
• Xteink X4: 4.3", 220 ppi, 114×69×5.9 mm, 74 g, 650 mAh, about 14 days at 1–3 h/day, no touch, no light, side buttons, ESP32, about $69 (Good e-Reader review, March 2026). Not a writing device. The X4 Pro adds a touchscreen, front light and 1100 mAh battery (from $99).

5.2 Templates

A template is a background layer: lines, grid, dots, a planner layout. On most devices you cannot write "into" fields; you write on top. Built-in templates are usually PNG-like bitmaps at the panel's native resolution. Custom template support differs a lot by maker (see the table in section 15).

5.3 Hyperlinked PDF planners

One PDF with hundreds of pages (a 2026 Kindle Scribe daily planner from Templatables lists "over 700 pages" and "1,000's of hyperlinks"). A tab strip on every page links to year, months, weeks and days. You write with the device's annotation layer. Strengths: navigation like a real planner, cheap, works on any PDF-capable device. Weaknesses: files are huge and slow to open, you cannot add pages inside a day without breaking links on some devices, handwriting on PDFs often can't be converted to text, and every year you buy (or regenerate) a new file.

5.4 Refresh modes and ghosting

Electrophoretic particles move physically. A full refresh flashes black and white to reset every particle (about 2 s on black-and-white panels) and removes ghosting. A partial (fast) refresh moves only changed pixels in well under a second but leaves some particles part-way, so faint traces ("ghosts") build up. Waveshare's guidance: "perform one full refresh after every 5–10 partial refreshes or at regular intervals such as once per hour." Colour panels are far slower (15–30 s on some hobby panels). Particles are slower in the cold, with many panels rated down to about 0°C.

5.5 Sleep screen

Because e-ink is bistable, whatever is on screen when the device sleeps stays there at zero power. Readers use this for covers or art. The X4 companion uses it for today's page.

5.6 Export and sync

Kindle Scribe shares notebooks by email link (a PDF, plus a TXT if converted; link expires after 7 days). Kobo exports PNG/JPEG/PDF or docx/text/HTML. reMarkable syncs through its cloud; Supernote and Boox offer their own clouds plus local transfer. The X4 companion stays local: files go out only over its own hotspot.

6. Setting it up

First setup (writing tablet)

1. Pick one device and one notebook app. Resist installing three planners.
2. Choose paper: dots or lines. Set it as default if the device allows.
3. Make four notebooks at most: Daily, Collections, Archive, Inbox. Or import one planner PDF.
4. If using a planner PDF: import it, then duplicate the blank file and keep the copy as a master so you can restart.
5. Set sleep timeout short (1–5 min) and the sleep screen to something calm.
6. Turn off Wi-Fi and cloud if you do not need them; turn on a weekly export instead.
7. Decide a backup day (e.g. Sunday) and where backups go (a computer folder, not only the maker's cloud).

First day

• Morning: open today's page from the planner tab (or add a dated page). Write three lines. Close.
• Evening: tick what happened, one line of reflection.
• Do not customise anything on day one.

First week

• Day 3: notice friction. Too many taps to reach today? Add a bookmark or move to a simpler file.
• Day 5: try one refresh setting change if ghosting bothers you (most devices have a "full refresh every N pages" option).
• Day 7: export the week as PDF. Look at it on a computer. Decide whether this is better than paper for you.

First setup (X4 companion, no pen)

1. Build the month packs and copy /kw/ to the SD card (tools/export_pack.py).
2. Set the clock from the Wi-Fi page.
3. Put the X4 somewhere you pass daily (fridge with the magnet ring, bedside, phone back).
4. Let it sleep. The screen shows today. That is the whole setup.

7. Daily practice

A sample e-ink journaling day, 6–12 minutes total:

Order of operations on a tablet: open (from a bookmark, not by scrolling), write, never reorganise during the day, close. Reorganising is a weekly job.

Prompts that suit e-ink's slow screen: short, one-line answers. "One word for today." "What drained me?" "What helped?" "Tomorrow's first step."

8. Rhythms

• Weekly (10 min): export or back up; duplicate next week's pages if your template needs it; clear the inbox notebook; do a full refresh or two if the screen looks muddy.
• Monthly (20 min): archive last month's notebook (rename 2026-10 Daily); export PDF; review tallies; for Journalwright Studio, open X4 "This month" and copy the numbers into the Keeper's Closing page.
• Quarterly: check storage space, nib wear, battery health; update firmware only if something is broken (updates change layouts and break templates, e.g. Boox 4.0 changed how templates apply).
• Yearly: buy or generate next year's planner; export the whole year to PDF and store it in two places; decide whether the device still earns its place.

Index upkeep: hyperlinked planners replace the index with tabs. Plain notebooks need a page 1 index or the device's search (only works on converted text on most devices).

9. Page anatomy

9.1 Plain template page (portrait tablet, 10")

+--------------------------------------------------+
| (toolbar hides after 3 s)                         |
|                                                   |
|  .   .   .   .   .   .   .   .   .   .   .   .    |   5 mm dot grid, 25-30% grey
|  .   .   .   .   .   .   .   .   .   .   .   .    |   dots fade on greyscale panels,
|  .   .   .   .   .   .   .   .   .   .   .   .    |   so templates use darker grey
|  .   .   .   .   .   .   .   .   .   .   .   .    |   than print would
|  ...                                              |
|                                                   |
|                                    page 3 / 12    |
+--------------------------------------------------+

9.2 Hyperlinked PDF day page

+---+----------------------------------------------+
|JAN| MON 12 OCT 2026                  [<] [W] [>]  |  header: date, links to prev/week/next
|FEB|----------------------------------------------|
|MAR| TOP 3            | SCHEDULE                   |
|APR| 1 ____________   |  7 ______                  |
|MAY| 2 ____________   |  8 ______                  |
|JUN| 3 ____________   |  9 ______                  |
|JUL|------------------|  ...                       |
|AUG| NOTES (lines)    | 18 ______                  |
|SEP|                  |----------------------------|
|OCT| ______________   | HABITS  o o o o o o o      |
|NOV| ______________   | MOOD    1 2 3 4 5          |
|DEC| ______________   |                            |
|IDX|                  |          [NOTES] [HOME]    |
+---+----------------------------------------------+
  ^ month tabs are links, about 10 mm tall (finger/pen target)

Proportions: tab rail about 8% of width; header about 6% of height; two columns 55/45. Links need 8–10 mm targets for a pen, larger for fingers.

9.3 X4 sleep screen (480×800, 1-bit, portrait)

+------------------------------+
| THU, OCT 1          2026     |  large date, top-left, black on white
|------------------------------|
| (moon) Waxing gibbous        |  monoline icons, no fills
| sunrise 6:52  sunset 6:31    |
| Your town: first frost watch |  season line, italic
|------------------------------|
| EVENTS                       |
|  10:00  Appointment          |
|  14:00  Shift                |
|------------------------------|
| ROUTINES                     |
|  meds am · meds pm · water   |
|------------------------------|
| CARE  [x][ ][ ][ ][ ]        |  today's check-ins so far
|------------------------------|
| ON THIS DAY                  |
|  one line of history         |
+------------------------------+

Rules: nothing animated; no seconds; no battery percentage in the corner unless low; large margins; no big black areas (they ghost and look heavy).

9.4 X4 check-in screen

+------------------------------+
| CHECK IN            Thu 1    |
|------------------------------|
| > [x] Meds, morning          |  selection = thin outline, moved with Up/Down
|   [ ] Meds, evening          |  (fast partial refresh, no flash)
|   [ ] Meal                   |
|   [ ] Shower                 |
|   Mood      - 3 +            |  Left/Right change value
|   Spoons    - 6 +            |
|------------------------------|
| Confirm tick · Back done     |  one-line button hint
+------------------------------+

10. Worked examples

10.1 A day on a reMarkable-style tablet (plain dots, Journalwright Studio style)

THU 1 OCT 2026                          day 1 of the Oct book
• appointment 10:00  (bus, leave 9:20)
• shift 14:00–22:00
x meds am      – meds pm
o dentist call → migrated to Fri
– thought: the cold came early; fingers slow on the pen outside
Mood 3/5   Anxiety 2/5   Spoons 7 → 3
Good: coworker saved me a coffee.
Tomorrow's first step: call dentist 9:05.

10.2 A week (hyperlinked planner week view, filled)

WEEK 40  28 SEP – 4 OCT
MON  rest day. laundry x. walk 20 min.          mood 3
TUE  shift. rain. bus late.                      mood 2
WED  shift. prescription picked up x            mood 3
THU  appointment, shift. first frost watch.  mood 3
FRI  dentist call x. texted J.                   mood 4
SAT  shift. smoke from the west? no, clear.      mood 3
SUN  review + export. backup to laptop x         mood 4
Habits: meds ●●●●●●◐  outside ●●○●●●●  texted ○○○○●○●

10.3 A month (X4 "This month" feeding the paper Keeper)

OCTOBER 2026 (from the X4)            → copied to Keeper "Closing October"
days logged      27 / 31
avg mood         3.1
avg sleep        6.4 h
meds both        24     meds any 29
showers          19
good-spoon days  11
did something I enjoy 14    texted someone 12

Paper remains the story; the X4 gives the tallies that paper is bad at adding up.

11. Variations and offshoots

12. Community practice

• What people do: most e-ink journalers end up with a very plain setup (one dot notebook, dated headings) after a phase of buying planners. Planner collectors are a real sub-community; many admit to "planner hopping."
• Common customisations: darker grids (default greys vanish on some panels), left-hand tab rails for left-handers, "no-date" undated planners so a missed week does not waste pages, Monday vs Sunday starts, simplified "minimal" versions with fewer links.
• Refresh tweaks: Boox users switch refresh modes per app; readers set "full refresh every N pages"; CrossPoint exposes refresh cadence as a setting.
• Aesthetic camp: colour Kaleido/Gallery devices, digital stickers, handwritten headers. Colour e-ink is muted and slow, so this camp often still prefers iPads.
• Minimalist camp: Supernote and reMarkable 2 users, black and white, one notebook, no cloud.
• Friction points people report: large PDFs lag; links break when pages are inserted; templates reset after firmware updates; nibs wear; export is clumsy; handwriting search is unreliable.

13. Official products and formats

Release cycle: tablets every 2–4 years; firmware several times a year; planners every autumn for the next year.

14. Tools and supplies

• Stylus: EMR pens need no charging (reMarkable, Scribe, Supernote, most Boox). Kobo Stylus 2 is active (rechargeable).
• Nibs: felt nibs give more friction and wear faster; ceramic or hard nibs last longer. Budget for spares.
• Screen film: some add matte film for more friction; it slightly lowers contrast.
• Folio: protects the screen; magnetic covers wake/sleep the device.
• Computer tools: a PDF editor (for making templates), an image editor that exports PNG at the device's native size, and a backup folder.
• For the X4: a microSD card, the magnet ring, a USB-C cable. No pen.
• Not needed: stickers, washi, stamps, rulers (though digital sticker packs exist).

15. Digital and hybrid versions

This whole doc is the digital version. Key points:

Template support by device

Scanning

The reverse path matters for Journalwright Studio: paper pages are scanned with the Data Matrix page code and data-zones. E-ink tablets skip scanning but lock handwriting inside their own format; export to PDF for a durable copy.

Lost vs gained compared with paper

16. Evidence and research

Claimed vs supported:

• "E-ink is easier on the eyes than a phone": some support (Benedetto), small.
• "Writing on e-ink is as good as paper for memory": not settled. Umejima suggests paper wins over tablet writing; Morehead found no clear eWriter penalty.
• "E-ink reduces distraction": plausible by design (no notifications), not directly tested for journaling.
• "E-ink journaling improves wellbeing": no direct evidence. Benefits come from the journaling method used.

17. Benefits

• Less glare and eye strain than phones and LCD tablets. evidenced (small)
• Paper-like handwriting with unlimited pages. claimed
• Fewer distractions than a phone or iPad. claimed
• Search and backup (when text-converted or exported). claimed
• Long battery, readable in sunlight (reflective screen). evidenced by physics (bistable, reflective)
• Sleep screen shows useful information at zero power. evidenced by physics
• Cheaper than buying many paper planners over years. claimed (depends on device cost)
• One object instead of a stack of notebooks. claimed

18. Pitfalls

19. Accessibility and adaptations

• ADHD: e-ink removes app-switching, which helps. The risk is hyperfocusing on planner setup. Keep navigation to one tap; use tally counters rather than long forms. The X4's one-press check-ins suit "do it in the moment."
• Autism and sensory needs: reflective screens with no flicker suit light sensitivity. Full refreshes flash; choose devices that let you reduce full-refresh frequency, or accept a flash only at sleep (the X4 companion does this). Consistent layouts every day reduce load.
• Chronic illness and low spoons: a device beside the bed that shows today without opening anything is a real saving. Button check-ins take seconds. Large tablets can be heavy (Paper Pro is large); smaller (7") or the X4 weighs little.
• Depression and anxiety: avoid planners with streaks or empty-day guilt; undated pages help. Calm sleep screens beat notification pings.
• Trauma: privacy matters: device lock, no cloud, local exports. A physical notebook can be found; a locked device less easily, but cloud accounts can be subpoenaed or breached.
• Dyslexia and dysgraphia: text conversion can help or frustrate; a clear sans font on sleep screens and large line spacing help reading. Handwriting on glass can feel slippery: try felt nibs or film.
• Low vision: e-ink contrast is lower than good paper; 300 ppi Scribe and zoom help; the base X4 has no front light, so it needs good room light. Use large type and heavy (not thin) lines.
• Motor or hand pain: styluses with thicker grips; pressure settings; buttons (X4) need no fine motor aim. Long-press actions should be tolerant (about 1 s).
• Trans and gender-diverse people: privacy of HRT logs and dysphoria notes; device lock and local-only storage; no account names shown on the sleep screen.
• Shift workers: night-friendly (no glare), but the "day" boundary matters: the X4 redraws at 12:31 a.m., which is mid-shift for some. A configurable day-start hour would help (see 26).
• Low income: devices are expensive; paper is cheaper. Used Kindles or the $69 X4 as companion are the cheapest e-ink routes. Free templates exist for every device.

20. Comparison

21. Combining

• Bullet Journal on e-ink: see the Bullet Journal doc in this folder once it lands. Rapid logging works well with a pen on e-ink; migration is easier with copy/paste lasso.
• Digital daily notes: see 0. Text-converted e-ink notes can feed an Obsidian vault; the X4 companion's logs (CSV) can be imported into daily notes.
• Habit and mood tracking: tallies suit buttons better than handwriting; the X4 is a tally device.
• Morning pages / long-form writing: better on paper or a large tablet; not on a 4.3" reader.
• Journalwright Studio pattern: write on paper, glance and tally on e-ink, hand off monthly to the Keeper.

22. Ready-to-use bank

One-line prompts for a slow screen

1. One word for today.
2. What drained me?
3. What helped, even a little?
4. Where did I feel like me?
5. What can wait until tomorrow?
6. Tomorrow's first step.
7. Something I noticed outside.
8. Who do I want to text?
9. What does my body need right now?
10. What went better than expected?

Headings / collections for a tablet notebook

1. Inbox (quick captures, cleared weekly)
2. Words to keep
3. Questions for the clinic
4. Things that help on bad days
5. Shift notes
6. Books and shows
7. Places I want to go
8. Gift ideas

Button trackers (X4 style: toggle, scale, count, dots)

1. Meds taken (toggle)
2. Went outside (toggle)
3. Energy 1–5 (scale)
4. Pain 0–5 (scale)
5. Glasses of water (count 0–12)
6. Minutes outside (count)
7. Stretch (dots: none / some / full)
8. Ate a real meal (dots)
9. Screen-free hour (toggle)
10. Texted someone (toggle)

Template ideas

1. Undated day page with top 3, care boxes, 8 lines.
2. Month tally grid: 31 columns × 8 rows, dark grey lines.
3. Two-column "Was hard / Helped" page.
4. Week-on-one-page with one line per day and a habit strip.

23. Glossary

24. FAQ

1. Is e-ink better for my eyes than my phone? Small studies say reading on e-ink causes less fatigue than LCD and about the same as paper. It is not a treatment for anything.

2. Is writing on e-ink as good as paper for memory? Unclear. One fMRI study favoured paper over tablet; a replication with an eWriter group found no clear differences. Pick what you will actually use.

3. Why do my pages look dirty? Ghosting from partial refreshes. Turn on a full refresh every 5–10 pages.

4. Can I use my own templates on a reMarkable? Officially the route is a PDF notebook (or Connect's template feature). Supernote and Boox take PNG files directly.

5. Why is my hyperlinked planner so slow? Hundreds of pages and thousands of links. Split it by quarter or use a simpler version.

6. Can the X4 replace my paper journal? No, by design. It has no pen or touch. It shows today, takes button check-ins, and adds up the month.

7. Why does the X4 sleep screen flash when it goes to sleep? It uses a full refresh before sleeping so the image that stays for hours is clean and ghost-free.

8. Does colour e-ink help journaling? Colours are muted and refresh is slower. For a calm black-and-white system it adds little.

9. What happens to my notes if the company goes away? Export PDFs regularly. The X4 stores plain text and CSV on its SD card, so nothing depends on a company.

10. Should I use AI summaries on my journal? Journalwright Studio does not; journals are private and the firmware has no generative AI by rule.

25. For Journalwright Studio

25a. Printed book

25b. X4

The X4 is a 480×800 (portrait) 1-bit panel on an ESP32-C3 with no PSRAM, about 380 KB RAM, one 48 KB framebuffer, seven buttons, no touch, no light, weeks per charge. The firmware already follows most of what the research recommends. This table lists what fits and what to watch.

Calm checklist for any new X4 screen (from Case's principles):

1. Can it be read in one glance from arm's length?
2. Does it ask for anything? If yes, is it the smallest possible ask (one press)?
3. Does it change on its own? (Only the midnight redraw may.)
4. Does it still make sense if the battery dies right now?
5. Does it use more black than the Today screen? If so, why?
6. Does it add a number that invites comparison or streak guilt? Remove it.

25c. Proposed editor blocks

Notes: presets reuse existing types so the bridge needs no change. tally is the only new type; it maps cleanly to count, and on paper prints |||| || space plus a small box for the total.

25d. Proposed method layout: "Paper + X4 companion" (planned)

A day page designed so the X4 and the paper page agree:

1. sky (Moon, sun & season)
2. events
3. care (Care check-in; built-in on X4)
4. spoons (built-in on X4)
5. habits Outside & light (→ dots)
6. checks Device-free hour (→ toggle)
7. scale Energy (→ scale)
8. top Top 3
9. body Writing space (dots)
10. review Went well · Was hard · Tomorrow
11. fact On this day

Total custom exports: 3 + 1 + 1 = 5 of 16 slots.

25e. Don't adopt

• Handwriting or touch on the X4: no digitiser; paper is the writing surface.
• AI summaries or "refine handwriting" (Kindle Scribe style): firmware rule, and journals are private.
• Background or cloud sync of check-ins: nothing leaves the device except over its own hotspot, or an explicit sync the user starts over Wi-Fi they configured.
• Streaks, badges, progress rings: they turn care into performance.
• Colour or greyscale photos on the sleep screen: 1-bit dithered photos look noisy and ghost.
• Hyperlinked mega-PDFs in the X4 library: a 4.3" screen can't show letter-size pages usefully; EPUB is the right format.
• Yearly planner files as a product: the monthly book already does this better in print.
• Frequent timed redraws (clock, weather): costs battery and breaks the calm glance.

26. Open questions

• Real ghosting behaviour of the X4 panel with the fast/half/full policy (needs the hardware pass).
• Actual deep-sleep current with GPIO13 held and whether "weeks per charge" holds in cold weather.
• X4 panel's rated operating temperature (not found in any source we opened).
• Whether a 1-bit panel can do a reliable 4-grey mode on the X4 controller (CrossPoint may know).
• reMarkable's built-in template count and custom-template rules: the official support page did not render for our fetch tool.
• Whether shift-aware day start (e.g. 4:31 a.m.) is better than midnight for check-ins.
• No study tests journaling outcomes (wellbeing, consistency) on e-ink vs paper.

27. Further reading

• Mark Weiser, "The Computer for the 21st Century" (1991): the origin of ubiquitous computing.
• Weiser and Brown, "Designing Calm Technology" (1995): centre vs periphery, the dangling string.
• Amber Case, Calm Technology (O'Reilly, 2015): practical patterns; not opened for this doc (publisher page blocked the fetch).
• calmtech.com: the eight principles with sub-points.
• Waveshare e-paper tutorial: plain explanation of refresh and ghosting.
• Good e-Reader's X4 review (2026): what the stock X4 does and doesn't do.
• CrossPoint README: what open firmware on the same hardware exposes (refresh cadence, sleep screens).
• Supernote's custom template FAQ: the cleanest official template spec.
• Benedetto et al. 2013 and Umejima et al. 2021: the two most-cited small studies on screens and paper.

28. Sources

All opened on 2026-09-28.

1. Amber Case, "Principles of Calm Technology," calmtech.com. https://calmtech.com/
2. Mark Weiser and John Seely Brown, "Designing Calm Technology," Xerox PARC, 21 Dec 1995 (calmtech.com copy). https://calmtech.com/papers/designing-calm-technology.html
3. Mark Weiser, "The Computer for the 21st Century," Scientific American, 1 Sep 1991. https://www.scientificamerican.com/article/the-computer-for-the-21st-century/
4. Calm Tech Institute, home and certification. https://www.calmtech.institute/
5. E Ink Holdings, "How it works." https://www.eink.com/tech/detail/How_it_works
6. Waveshare, "ESP32 E-Paper Tutorial: Electrophoretic Display Principles and Full/Partial Refresh Driving." https://docs.waveshare.com/ESP32-Peripheral-Tutorials/Display/E-Paper
7. reMarkable, "reMarkable Paper Pro Move" product page. https://remarkable.com/products/remarkable-paper/pro-move
8. reMarkable, "reMarkable Methods." https://methods.remarkable.com/
9. Amazon, "All your questions answered about Kindle Scribe" (2023, updated 2024). https://www.aboutamazon.com/news/devices/kindle-scribe
10. Rakuten Kobo, "Use your Kobo eReader as a notebook." https://help.kobo.com/hc/en-us/articles/360062226733-Use-your-Kobo-eReader-as-a-notebook
11. Supernote, "How to Create a Custom Note Template Using Images?" https://support.supernote.com/en_US/faq/how-to-create-a-custom-note-template
12. BOOX, "BOOX Firmware V4.0" (21 Jan 2025). https://shop.boox.com/en-ca/blogs/news/boox-firmware-v4-0
13. Michael Kozlowski, "Review of the Xteink X4 e-reader," Good e-Reader, 29 Mar 2026. https://goodereader.com/blog/electronic-readers/review-of-the-xteink-x4-e-reader
14. Xteink, store and X4 Pro specifications. https://www.xteink.com/
15. CrossPoint Reader (open-source firmware), GitHub README. https://github.com/crosspoint-reader/crosspoint-reader
16. Benedetto S. et al., "E-Readers and Visual Fatigue," PLOS ONE, 2013. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0083676
17. Umejima K., Ibaraki T., Yamazaki T., Sakai K.L., "Paper Notebooks vs. Mobile Devices: Brain Activation Differences During Memory Retrieval," Frontiers in Behavioral Neuroscience, 2021. https://www.frontiersin.org/articles/10.3389/fnbeh.2021.634158/full
18. Morehead K., Dunlosky J., Rawson K.A., "How Much Mightier Is the Pen than the Keyboard for Note-Taking?" Educational Psychology Review, 2019 (ERIC record). https://eric.ed.gov/?id=EJ1225471
19. The Learning Scientists, "New Findings Inform the Laptop versus Longhand Note-Taking Debate," 21 Feb 2019. https://www.learningscientists.org/blog/2019/2/21-1
20. Templatables, "Ultimate 2026 Daily Planner for Kindle Scribe" (example of the hyperlinked planner market). https://www.templatables.com/en-us/products/2026-kindle-scribe-daily-planner
21. Journalwright Studio repo: x4/README.md, x4/src/app.cpp (refresh policy), journal/daypage.mjs.