How to start a Time-Machine Version History for Obsidian business: plan and growth
An Obsidian user discovered months of work on one note was silently truncated and reordered by a hotkey or plugin bug, with no standard way to roll back.
An owner can start “Time-Machine Version History for Obsidian” from a complaint people already posted. The offer, in one line: Git-powered snapshots with a visual diff and one-click restore, for users who don't know git. It is for Obsidian users. Charge a subscription, and test a price under $10 a month. Begin in more than one country. Buyers already talk about this in r/ObsidianMD. One thread gathered 178 votes and 88 replies across Sep 14, 2026 – Oct 14, 2026. Use that room to meet the first twenty buyers. Do not export it, and do not republish the posts. The idea, the evidence, and the market estimate on this page are free to read. Two paid prompts finish the job: one drafts the offer, the price, and a ninety-day calendar; the other drafts a month of conversations and proof. One credit unlocks both. A software specification is not on this site. When the company is the product itself, a single link further down opens the founder library.
Just realized I lost months worth of notesr/ObsidianMD · Sep 14, 2026 – Oct 14, 2026 · 178 votes · 88 replies · Open the thread
Who would pay
Obsidian users. Start in more than one country, and charge a subscription, testing a price under $10 a month.
The thread above is the public complaint this business can learn from. Verbatim quotes are not invented. Further sources, when a later report adds them, stay with the evidence.
What buyers use today
- Obsidian Sync history
- obsidian-git plugin
The offer, in our words
A plugin/service with Time Machine-style versioning (git under the hood, no git knowledge needed), simple visual diff and one-click rollback.
Score 3.75, Hot. Pain, willingness to pay, demand, and the gap in current options drive it. We are not scoring how fast you can code.
Market size
An estimate, built from the bottom up: real customer counts × a realistic price. It shows the size of the prize, not a forecast.
TAM Total addressable
$28.8M a year
600,000 users · 20% of Obsidian users worldwide (low end of public estimates)
SAM Serviceable
$14.4M a year
300,000 users · the community plugin directory reaches most users
SOM Obtainable in 3 years
$288K a year
6,000 users · 2% of the reachable segment in three years
What that means
6,000 users at $4/mo = $288K ARR
Medium confidence · estimated Oct 2026
How we estimated this
- Base: 3,000,000 Obsidian users worldwide (low end of public estimates).
- Has the problem: 20% (assume 1 in 5 want version history).
- Revenue per user: $48 per year ($4/mo).
- Reachable: 50% (the community plugin directory reaches most users).
- Three-year capture: 2% of the reachable segment.
TAM is customers with the problem × revenue per customer. SAM is the part a new business can reach. SOM is a cautious three-year share of SAM. The bars use a log scale. A share marked “assume” is our judgment, not a measurement.
Source: No official count; public estimates range 3–10M (CEO Steph Ango, 2025)
The business-plan prompt
The offer, the price, and a ninety-day calendar, written for an agent. 1 credit unlocks both prompts for this idea: this plan and the growth playbook below.
# Business plan prompt: Time-Machine Version History for Obsidian You are writing a practical plan for one owner who will sell this as a business. Do not write a software specification, a venture memo, or a feature list. Use short sentences. Where a number is unknown, give a range and say what to measure. ## The business Working name: Time-Machine Version History for Obsidian What the customer gets: Git-powered snapshots with a visual diff and one-click restore, for users who don't know git. Who pays: Obsidian users
Locked · the first lines are above
Unlock both prompts for this idea · 1 credit ($9.99)
One credit opens the business plan and the growth playbook together, for good. Credits work on both businessideastobuild.com and realstartupideas.com.
Sign in once with your Real Startup Ideas account; the same credits work on both sites.
The growth playbook
Thirty weekdays of conversations and proof. Not an ad plan. Included with the plan above, on the same credit.
# Growth prompt: Time-Machine Version History for Obsidian You are planning thirty days of distribution for a business that already has an offer. The offer: Git-powered snapshots with a visual diff and one-click restore, for users who don't know git. The buyer: Obsidian users. Price band: under $10 a month. Do not propose ads, a viral loop, or a rebrand. Propose conversations, proof, and a repeatable weekly rhythm. ## Starting point A public thread in r/ObsidianMD drew 178 votes and 88 replies. The pain, in the owner's words: An Obsidian user discovered months of work on one note was silently truncated and reordered by a hotkey or plugin bug, with no standard way to roll back.
Locked · the first lines are above
Unlock both prompts for this idea · 1 credit ($9.99)
One credit opens the business plan and the growth playbook together, for good. Credits work on both businessideastobuild.com and realstartupideas.com.
Sign in once with your Real Startup Ideas account; the same credits work on both sites.
Questions
How much money do I need to start?
Enough to talk to buyers and deliver the offer once. A service version can start with a written process and a way to take payment. A software version is a larger bet and is not required to test the price. The band to test is Under $10 a month.
How should I price it?
Test a price under $10 a month, charged as a subscription. Raise it after three paid pilots, not before the first conversation.
Where do the first customers come from?
r/ObsidianMD is the clue. A related thread gathered 178 votes and 88 replies. Show up there, follow the room's rules, and ask for conversations. Do not scrape it.
Do I need to write code?
No. The prompts on this page draft a plan and a month of growth. Code is a later choice. The founder site linked once below is where the build document lives, if you want it.
When the business is the software itself, the specification lives on the founder site. Get the build PRD
A two-week build starts at $10,000 on that site, after a $1,000 scoping fee.
Plans and growth playbooks
One credit opens both prompts for this business.
The idea, the evidence, and the market estimate stay free. The business plan and the thirty-day growth playbook for Time-Machine Version History for Obsidian cost one credit, together, and stay unlocked.
Credits work on both businessideastobuild.com and realstartupideas.com. Sign in once with your Real Startup Ideas account; it is the same wallet.