Beyond the Headlines: What the Cursor–SpaceX Acquisition Really Means for Small Business Owners in USA

Direct answer: Cursor, one of the most widely used AI coding tools among developers and agencies building software today, is closing its acquisition by SpaceX, putting a leading code-generation platform inside Elon Musk's orbit of companies alongside X, xAI, and Tesla. For a small business owner in the USA who relies on a website, app, or custom software built with help from AI coding tools, this doesn't change anything about your product today, but it is one more data point in a pattern worth watching: the tools your developers use are consolidating under fewer, larger, more strategically-motivated owners, and that consolidation eventually shows up in pricing, priorities, and platform stability.

The headline itself is straightforward and, as of August 2026, is being reported across industry coverage: Cursor's acquisition by SpaceX is closing, folding a tool that many development teams treat as core infrastructure into a company whose primary business is rockets and satellites, not developer tooling. That combination alone is unusual enough to generate coverage, and it's worth being precise about what is and isn't confirmed. What's confirmed, per that industry reporting from August 2026, is the acquisition itself closing and the ownership change it represents. What isn't publicly available at this level of detail is exactly how SpaceX intends to integrate Cursor, whether pricing or product direction will shift for outside customers versus internal SpaceX engineering use, or what timeline any of that plays out on — so this post reasons from the pattern of what tends to happen when a widely-used developer tool gets folded into a larger, differently-focused parent company, rather than speculating about specifics nobody has confirmed yet. For a small business owner whose website or app was built using AI-assisted development, or who is evaluating a developer/vendor that leans on these tools, the useful question isn't "does this affect me today" — it almost certainly doesn't, directly — it's "what does a pattern of AI tooling consolidation mean for how I choose who builds and maintains my software going forward."

What Actually Happened, and Why It's Different From the Usual AI News Cycle

Most AI headlines that reach small business owners are about capability: a model got smarter, a tool got a new feature, a benchmark got beaten. This one is different in kind — it's a structural, ownership-level event. Cursor built its reputation as an AI-native code editor, popular specifically because it was laser-focused on one job: helping developers write, refactor, and debug code faster using large language models woven directly into the editing experience. That focus is part of why it became a default recommendation inside so many development shops, including teams that build for small businesses.

SpaceX's core business has nothing to do with developer tooling in the traditional sense — it builds rockets, operates Starlink, and runs enormously complex aerospace software internally. When a company like that acquires a tool like Cursor, the plausible reasons split into a few buckets: securing a strategic internal advantage (giving SpaceX's own engineering teams a tool nobody else gets, or gets first), consolidating talent and IP under one roof, or simply the broader trend of well-capitalized companies buying up category-leading AI infrastructure before it gets more expensive or more competitively contested. None of those reasons are confirmed publicly in detail, and this post won't invent motives beyond what's actually reported. What is worth sitting with is the plain fact pattern: a tool many outside developers depend on has just become part of a company whose primary incentive structure isn't "serve the broadest possible developer market at the best possible price."

Why This Differs From a Typical Startup Acquisition

Plenty of developer tools get acquired every year, and most of those acquisitions are fairly unremarkable — one software company buys another software company in the same general space, and continuity is the norm. This one is notable specifically because the acquirer isn't a software company at all in its primary identity. That mismatch between what SpaceX does and what Cursor does is exactly what makes outside observers pay closer attention to questions like: will Cursor's outside-customer product roadmap now compete for resources against SpaceX's internal engineering priorities? Will the tool's independence as a neutral, developer-first product survive being owned by a company with such a different center of gravity? Nobody outside the deal has confirmed answers to either question yet, and it would be irresponsible to state one as fact. What's fair to say is that this is the kind of acquisition that historically precedes a period of uncertainty for a tool's external user base, even when the tool itself keeps functioning exactly as before in the short term.

Why This Actually Matters to Small Business Owners in the USA

It's tempting to file this under "interesting tech news, not my problem" if you're not personally writing code. But most small business owners in the USA aren't writing their own code — they're paying a developer, freelancer, or software partner to build and maintain a website, an app, or some custom internal tool, and increasingly, that developer is using an AI coding assistant like Cursor to do it faster. That's the thread connecting a SpaceX acquisition headline to your actual business.

Here's the practical chain of exposure. If your site or app was built with help from an AI coding tool, and that tool's ownership, pricing, or roadmap shifts because of an acquisition like this, the shift doesn't hit you directly — it hits your developer first, and your developer's response to it eventually reaches you, whether as a change in delivery timelines, a change in which tools they recommend, or in a worst case, a scramble if a tool they depended on changes terms unexpectedly. Small business owners rarely see this coming because the tooling layer is invisible to them until something breaks or slows down. That's precisely why understanding the pattern now, rather than reacting to a specific disruption later, is the more useful posture.

There's a second, more direct angle too. If you're currently choosing a developer or software partner — for a new website, a redesign, or a custom app — the tooling landscape they build on top of is shifting underneath everyone in the industry at the same time. A developer who leans entirely on one AI coding tool, with no fallback plan if that tool's pricing or availability changes, is taking on a dependency risk that eventually becomes your risk too, since you're the one who needs the site or app to keep working and keep getting maintained. This doesn't mean AI-assisted development is bad — it's faster and, done well, produces solid results. It means the question "which tools does my developer depend on, and what happens if one of those tools changes hands" is now a legitimate diligence question for a small business owner to ask, in the same way you'd ask a contractor which subcontractors they rely on before signing a build contract.

What Changes in Practice for Your Website or App

For most small businesses, nothing changes today in any way you'd notice by looking at your live site. Code that's already written and deployed keeps running regardless of who owns the tool that helped write it. But three practical things are worth thinking through as this consolidation trend continues, not just with Cursor specifically but as a category-wide pattern in AI developer tooling through the rest of 2026.

First, vendor concentration risk becomes real for the first time for many small businesses. If your entire web presence depends on one developer who depends on one AI tool that's now owned by one large, differently-motivated parent company, you've stacked three single points of dependency on top of each other without necessarily choosing to. That's not a reason to panic — it's a reason to ask your current developer, plainly, what their tooling dependencies look like and whether they have a plan if any single tool in their workflow changes materially.

Second, the pace and cost of custom development work may shift as the tooling market consolidates. When a handful of large, well-capitalized companies own the leading AI coding tools, pricing power concentrates with them. That can mean better tools with more resources behind them, or it can mean the free and cheap tiers that made AI-assisted development affordable for smaller shops start disappearing as owners optimize for their own strategic customers rather than the long tail of outside developers. Either way, it's worth factoring into how you think about the true, ongoing cost of maintaining custom software, not just the sticker price of building it once.

Third, this is a good moment to reassess what "AI-built" actually means for the site or app you're paying for. A well-built website today should hold up on solid architecture, clean code, and good practices regardless of which AI tool helped write the first draft of any given function. If a developer's pitch to you leans heavily on "we use the latest AI tool" as the main selling point rather than on the fundamentals — performance, security, maintainability, how it's structured for mobile app backend architecture if there's an app component, and how discoverable it is via both traditional search and the newer landscape covered in GEO vs SEO: What's the Difference? — that's worth a second look regardless of what happens with any single tool's ownership.

Fourth, support and maintenance response times are worth watching over the next few release cycles. Any acquisition of this size typically absorbs a meaningful chunk of an acquired company's engineering and support attention for a stretch of time — integrating systems, aligning on internal priorities, and figuring out what stays public-facing and what doesn't. If your developer relies on Cursor's own support channels or documentation for troubleshooting, it's reasonable to expect some short-term friction there, the same way any acquired product tends to see a temporary dip in external responsiveness while the new ownership settles in. That's not a reason to switch tools preemptively, but it is a reason to ask your developer whether they've noticed any change in how quickly issues get resolved, since a pattern there would be an early, practical signal well before anything shows up in official communications.

What Small Business Owners Should Actually Do About It

None of this calls for an emergency response. It calls for a slightly more deliberate approach to how you evaluate and work with whoever builds your web presence, starting now while the consolidation trend is still visible and easy to reason about, rather than after it's already reshaped pricing or availability in ways you didn't anticipate.

Ask Your Developer or Partner About Tooling Dependency

If you already have a developer, freelancer, or team building or maintaining your site, ask a direct question: which tools do you rely on day to day, and what's your plan if one of them changes hands, changes pricing, or shuts down a tier you depend on? A team that's thought about this will have a straightforward answer. A team that hasn't will likely be hearing the question for the first time — which is itself useful information about how much resilience is built into your ongoing relationship with them.

Prioritize Fundamentals Over Tool Branding When Choosing a Partner

When you're evaluating Web Development partners for a new project, weigh delivery process, code ownership, documentation, and post-launch support at least as heavily as which specific AI tools they mention using. Tools change hands; solid engineering practices, clear code you actually own, and a partner who can explain their architecture decisions in plain language don't. This is doubly true if any part of what you're building will eventually need automation layered on top of it — worth reading alongside how you'd actually verify that automation is paying off in AI Automation ROI: How to Measure Whether It's Actually Working, since the same "don't take the tooling story at face value, look at outcomes" logic applies there too.

Make Sure You Actually Own What Gets Built

Confirm, in writing, that you own the code, the repository, and the deployment setup for anything built for you — regardless of which AI tools were used to help write it. This has always been good practice, but it becomes more valuable specifically when the tooling layer underneath your developer is less stable than it used to be. If your developer's workflow depends heavily on a specific AI coding tool and that tool becomes unavailable or unaffordable for them, your ability to hand the project to someone else without starting over depends entirely on whether you actually have clean, portable ownership of the underlying code.

This is worth spelling out concretely rather than taking on faith. Ask for direct, personal access to the source repository under your own account, not just a developer's assurance that it "exists somewhere." Ask whether the deployment configuration, environment variables, and any third-party service credentials are documented somewhere you can retrieve independently of that one developer. And ask what would happen, practically, if that developer became unavailable tomorrow — a clear, specific answer is a good sign; a vague one is worth treating as a gap to close before, not after, you need it.

Treat This as a Prompt to Review, Not Rebuild

You don't need to rebuild your website or app because of a single acquisition. You do have a reasonable prompt, right now, to review how dependent your current setup is on any single vendor or tool, and to make sure your next project — whether that's a new site, an app, or a significant redesign — is scoped with a partner who thinks about long-term maintainability, not just fast initial delivery using whatever tool is fastest this quarter.

What This Kind of Work Typically Falls Under

If this review prompts you toward an actual project — a rebuild, a redesign, or a first custom site or app built with resilience and ownership in mind from the start — it helps to know roughly where that lands. Scult's engagement tiers give a useful frame for sizing the conversation before a formal quote, which always follows a discovery call once your specific scope, integrations, and complexity are known.

Tier	Typical scope	Starting at
Essential	A focused site or a single well-defined feature/module, straightforward scope	$1,000
Growth	A fuller custom site or app with more moving parts — integrations, custom logic, multiple user flows	$2,000
Enterprise	Complex, multi-system builds with significant custom architecture, ongoing scaling needs	$4,000+

These are starting points, not final quotes — actual pricing depends on scope, integrations, and timeline, and gets confirmed after a discovery conversation.

Key Takeaways

• Cursor's acquisition by SpaceX is closing as of August 2026, per industry reporting, folding a widely-used AI coding tool into a company whose core business is aerospace, not developer software.
• This doesn't change anything about an already-built website or app today, but it's a clear signal that AI coding tools are consolidating under fewer, larger, strategically-motivated owners.
• Small business owners should ask any current developer or partner what AI tooling they depend on and what their contingency plan is if that tooling changes hands or pricing.
• Prioritize fundamentals — clean architecture, documentation, and clear code ownership — over which specific AI tool a partner name-drops when you're choosing who builds your next project.
• Confirm in writing that you own the code and deployment setup for anything built for you, so a tooling disruption on your developer's side doesn't become a rebuild-from-scratch problem on yours.
• Use this as a prompt to review your current setup's vendor and tooling dependencies, not as a reason to panic or rebuild immediately.

None of this requires you to become a developer-tooling analyst yourself — it just means asking sharper questions before your next build. If you want help thinking through how to structure a new site or app so it isn't fragile to exactly this kind of consolidation, book a meeting with our team.

Frequently Asked Questions

What is Cursor, in plain terms?

Cursor is an AI-native code editor that developers use to write, refactor, and debug software faster, with large language models built directly into the editing workflow. It became popular specifically because it focuses on one job — accelerating the coding process — rather than trying to be a general-purpose AI product.

Did SpaceX actually acquire Cursor?

Industry reporting from August 2026 indicates the acquisition is closing, bringing Cursor under SpaceX's ownership. Details about the specific integration plan, pricing changes, or product roadmap beyond that headline fact are not publicly confirmed at this level of detail.

Why would SpaceX, a rocket company, want to own an AI coding tool?

The publicly reported facts don't include a confirmed motive, so any specific reason is speculation. In general, well-capitalized companies acquire category-leading AI infrastructure either to secure a strategic internal advantage for their own engineering teams or as part of a broader pattern of consolidating valuable AI tooling and talent.

Does this affect my website if it was already built and is live?

No. Code that's already written and deployed continues running exactly as it did before, regardless of which company now owns the tool that helped write parts of it. This event affects the tooling landscape going forward, not software that already exists.

I'm not a developer — why should I, as a small business owner, care about this at all?

Because your developer, freelancer, or software partner likely uses AI coding tools like this one, and shifts in that tooling layer eventually surface as changes in their pricing, delivery speed, or tool recommendations, which can indirectly reach you. Understanding the pattern now is more useful than being surprised by a downstream effect later.

Should I ask my current developer if they use Cursor?

It's a reasonable question to ask, but the more useful question is broader: what AI tools do they depend on generally, and what's their plan if any one of those tools changes ownership, pricing, or availability. A single-tool question misses the larger point about dependency risk.

What is "vendor concentration risk" and why does it apply here?

It's the risk of having your business depend on a single point of failure — in this case, potentially a developer who depends on a single AI tool that's now owned by a single large parent company. Stacking dependencies like that without realizing it means one disruption anywhere in the chain can ripple down to your project.

Will AI coding tools get more expensive because of acquisitions like this?

There's no way to state that as a confirmed fact for this specific deal, since pricing plans haven't been publicly detailed. As a general pattern, when tooling markets consolidate under fewer owners, pricing power tends to concentrate with those owners, which is a reasonable factor to watch rather than a certainty to plan around.

Is it bad that a big company like SpaceX now owns a tool used by many outside developers?

It isn't automatically bad — a well-resourced owner can also mean more stability and investment in the product. The uncertainty comes from the fact that SpaceX's primary business isn't serving external developer customers, so its incentives for the product may differ from what an independent, developer-focused company would prioritize.

What should I look for in a Web Development partner given this trend?

Look for a partner who explains their architecture and delivery process clearly, gives you full ownership of the code and deployment setup, and doesn't lean on any single AI tool as their main selling point. Solid fundamentals hold up regardless of what happens to any individual tool's ownership.

Do I need to rebuild my website because of this news?

No. This is a prompt to review your vendor and tooling dependencies, not a reason to rebuild something that's working. A rebuild only makes sense if your review turns up an actual gap, like not owning your own code or repository.

What does "owning your code" actually mean in practice?

It means you have direct access to the source code repository, the deployment configuration, and any credentials needed to run and modify the software independently of the specific developer or agency who built it. Without that, switching partners or recovering from a vendor disruption can mean starting over.

How does this connect to choosing between AI coding tools and traditional development?

It's less about AI versus traditional development and more about resilience. A team using AI coding tools well, with a clear fallback if any single tool changes, is not inherently riskier than a fully traditional team — the risk comes from over-relying on one tool with no contingency plan.

Could this kind of acquisition happen to other AI coding tools too?

It's a reasonable pattern to expect will continue, since AI coding tools broadly have become valuable strategic assets that larger, well-capitalized companies have incentive to acquire. No other specific deal is confirmed here, so this is reasoning from the general pattern, not a prediction about a named tool.

What's the difference between this and a normal software acquisition?

Most software acquisitions involve two companies in similar or adjacent spaces, which usually means more product continuity. This one involves an acquirer, SpaceX, whose primary business is aerospace rather than developer software, which raises more open questions about how a developer-focused product fits into that company's priorities.

How much does custom web development typically cost for a small business in the USA?

It varies by scope, but Scult's tiers give a useful starting frame: Essential engagements for focused sites or single features start around $1,000, Growth engagements for fuller custom builds start around $2,000, and Enterprise-level, complex multi-system builds start at $4,000 and up. Final pricing is confirmed after a discovery call once your specific requirements are known.

How long does a typical small business website or app project take?

Timeline depends heavily on scope and complexity, and is best confirmed during a discovery conversation rather than estimated generically. A focused, well-defined project moves faster than one involving multiple integrations, custom logic, or complex user flows.

What questions should I ask a developer about their AI tool dependencies before hiring them?

Ask which specific tools they rely on for development, what happens to their workflow and your project timeline if one of those tools becomes unavailable or changes pricing, and whether the code they deliver is portable to another developer if needed. Clear, specific answers are a good sign; vague or dismissive answers are worth probing further.

Does using AI coding tools make software lower quality?

Not inherently — AI-assisted development, done well, produces solid, well-structured code faster than manual coding alone in many cases. Quality depends on the developer's practices, review process, and architecture decisions, not simply on whether an AI tool was involved.

Should small businesses avoid developers who use AI coding tools?

No, avoiding AI-assisted developers isn't a reasonable response to this news, since most competent development teams use some form of AI tooling today. The better filter is whether the developer has sound engineering practices and a plan for tooling dependency, not whether they use AI tools at all.

What is GEO and why is it mentioned alongside this trend?

GEO, or generative engine optimization, is the practice of making your content discoverable and citable by AI systems that answer questions directly, alongside traditional search engine optimization. It's relevant here because a website built well technically also needs to be built to perform in this newer discovery landscape, which is covered in more depth in the linked comparison of GEO versus SEO.

How does mobile app backend architecture relate to this acquisition?

It doesn't relate directly, but the underlying lesson does: whether you're evaluating a website or an app, the fundamentals of solid architecture and clear ownership matter more than which specific AI tool a developer used along the way. That's the same principle covered in the linked piece on what actually powers a good app backend.

What is AI Automation ROI and why does it matter here?

It's the practice of measuring whether automation you've paid for is actually delivering value, rather than taking a vendor's tooling story at face value. The same skepticism applies to development tooling claims — the tool name matters less than the measurable outcome.

Is Cursor still usable for developers after this acquisition?

Based on what's publicly reported, the tool itself continues to function; the acquisition is an ownership change, not a shutdown. Longer-term product direction under new ownership isn't detailed in current reporting, so specific future functionality isn't something that can be confirmed either way right now.

What happens to my project if my developer's preferred AI tool becomes unavailable mid-project?

A well-run development team should be able to continue work using an alternative tool or approach without losing project continuity, provided they weren't entirely dependent on one specific tool's unique features. This is exactly the kind of resilience worth confirming with a partner before starting a project, not after a disruption happens.

Are there compliance or security concerns with AI coding tools changing ownership?

Ownership changes can raise legitimate questions about data handling, code privacy, and terms of service, especially if the new owner's policies differ from the original company's. It's reasonable to ask any developer using AI tools how their tool choices affect the privacy and security of your project's code and data.

Should I be worried about my business data if my developer uses AI coding tools?

Reputable AI coding tools are generally built for developer productivity and don't typically expose your business's live application data, but it's still reasonable to ask your developer how their tools handle code and data privacy. This is good practice regardless of any specific acquisition news.

What's the realistic timeline for any visible impact from this acquisition to reach small business owners?

There's no publicly confirmed timeline, since the details of SpaceX's integration plans for Cursor aren't public. Historically, effects like pricing or roadmap shifts following an acquisition like this tend to surface gradually over months rather than immediately, giving businesses time to adjust rather than react to a sudden change.

How do I know if my current website is well-architected regardless of what tools built it?

Look for signs like clean, documented code you can actually access, reasonable load performance, a structure that allows new features to be added without rebuilding everything, and clear separation between your content, design, and backend logic. A knowledgeable developer can audit this for you directly if you're unsure.

What's the difference between hiring a freelancer versus a dedicated web development partner given this trend?

A freelancer may have less redundancy if their personal tooling choices are disrupted, since they're typically a single point of dependency themselves. A dedicated development partner with a team and established processes is often better positioned to adapt if a specific tool they relied on changes, simply because they have more collective flexibility.

Does this news affect e-commerce sites differently than other small business websites?

Not fundamentally — the same tooling dependency and vendor concentration considerations apply regardless of whether the site is e-commerce, a service business site, or an internal tool. E-commerce sites may have slightly more urgency around uptime and integration stability given their direct revenue link, which makes vendor resilience questions somewhat higher-stakes.

What should be in a contract with a developer to protect against this kind of risk?

A solid contract should specify that you retain full ownership of source code, repositories, and deployment credentials regardless of which tools were used to build the project. It should also outline what happens if the developer can no longer continue the engagement, ensuring project continuity isn't tied to one person or one tool.

Can I ask a developer to avoid AI coding tools entirely if I'm concerned about this trend?

You can ask, but it's generally not a productive request, since most competent development today involves some AI-assisted workflow and avoiding it entirely usually means slower, more expensive delivery without meaningfully reducing dependency risk. A better ask is transparency and a contingency plan, not tool avoidance.

What's a "discovery call" and why does pricing depend on it?

A discovery call is an initial conversation where scope, integrations, technical requirements, and business goals are discussed before a project is quoted. Because complexity varies so much between projects even within the same general category, an accurate quote requires understanding your specific situation first.

How does this acquisition compare to previous AI tooling consolidation in 2026?

This event is part of a broader pattern seen throughout the year of larger, well-capitalized companies acquiring AI infrastructure and tooling companies, though each individual deal has its own specific context. The consistent thread across these deals is that developer-facing tools increasingly sit inside larger corporate structures with priorities beyond serving the external developer market.

Should small businesses build their own in-house development capability instead of relying on external tools and partners?

For most small businesses, that's not a practical response to a single acquisition, since in-house development capability requires significant ongoing investment that rarely makes sense outside of a company where software is the core product. A more proportionate response is choosing an external partner who manages tooling risk well on your behalf.

What happens to code that Cursor helped generate if the tool itself changes significantly later?

Code that's already generated and deployed is not retroactively affected by changes to the tool that helped produce it — it exists independently as a static asset in your repository. Future generated code, or ongoing support features tied to the tool itself, are what could be affected by changes in the tool's availability or terms.

Is this acquisition a sign that AI coding tools are becoming less accessible to small businesses?

It's too early to say definitively, since specific pricing or access changes for Cursor haven't been publicly detailed. It is a reasonable trend to watch, since tooling consolidation under larger owners has historically sometimes coincided with reduced free-tier accessibility in other software categories.

What's the best way to future-proof a small business website against this kind of industry shift?

Focus on owning your code fully, choosing a development partner with sound engineering fundamentals rather than one tool-dependent, and building with widely-supported, standard technologies rather than anything proprietary to a single AI tool's output format. This keeps your options open regardless of what happens in the tooling market.

Does Scult use AI coding tools in its own development process?

Scult uses modern, AI-assisted development practices where they genuinely speed up delivery without compromising code quality, while keeping projects built on standard, portable technologies. The goal is always a codebase the client fully owns and can maintain or hand off independently.

How can I tell if my current site's underlying code is portable and not locked to a specific vendor's tooling?

Check whether you have direct access to the actual source files and repository, whether the code uses standard, widely-documented frameworks rather than obscure or proprietary formats, and whether it can be opened and understood by a different developer without special access to the original tool. If you're unsure, an independent technical review can answer this clearly.

What's the risk if a small business ignores this trend entirely?

The realistic risk isn't an immediate disruption but a gradual erosion of flexibility — if dependencies stack up unnoticed over time, a future disruption anywhere in that chain becomes harder and more expensive to resolve. Paying attention now is mainly about keeping options open cheaply rather than avoiding a specific looming crisis.

Will this acquisition affect app development the same way it affects website development?

The same general logic applies to both, since app development teams often use similar AI coding tools in their workflows. The specific considerations around backend architecture and app store requirements add additional layers worth reviewing separately, as covered in the linked piece on mobile app backend architecture.

How often should a small business review its technology vendor dependencies?

An annual review is a reasonable baseline for most small businesses, with an additional review triggered by any major industry event like a significant tooling acquisition. The goal is catching stacked dependencies before they become urgent rather than during a disruption.

What's the single most important action item from this whole situation?

Confirm you have full, documented ownership of your website or app's code and deployment setup, independent of any specific tool or individual developer. That one safeguard protects you regardless of how tooling consolidation trends play out from here.

Where can I learn more about how to evaluate whether automation or AI tooling investments are actually working for my business?

The linked piece on measuring AI automation ROI walks through a practical framework for evaluating outcomes rather than taking vendor claims at face value, which applies directly to evaluating any AI-tooling-dependent development partner. It's a useful companion read alongside the vendor-diligence questions raised in this post.

Is now a good time to start a new website or app project given this uncertainty?

Uncertainty at the tooling-ownership level doesn't meaningfully change the calculus for starting a well-scoped project with a partner who builds on solid fundamentals and gives you full code ownership. Waiting for the tooling market to fully stabilize isn't realistic, since consolidation and change are an ongoing feature of this industry rather than a temporary phase.

How do I start the process of reviewing my current site's vendor dependencies?

Start by listing every third-party tool, platform, and developer relationship your website or app currently depends on, then ask each provider or partner what happens to your project if their service changes materially. If you want a structured version of this review done for you, book a meeting to walk through it together.

Could an acquisition like this change how fast my developer can deliver new features?

It's possible in the short term if a developer relies heavily on Cursor-specific workflows that see disruption during integration, though most competent teams can adapt quickly by shifting workload to other tools. The more relevant question is whether your developer's overall process depends on one tool so tightly that any single change meaningfully slows delivery.

Is there a way to verify a development partner's claims about tooling resilience before signing a contract?

Ask for specifics rather than reassurance — which tools they use, what their fallback looks like, and whether they can point to a past instance of adapting to a tool or vendor change without disrupting a client's timeline. A partner with real experience navigating this will usually answer concretely; one without it will tend to speak in generalities.