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Crypto Arbitrage Bot for Decentralized Exchanges and Cross-Chain Commerce

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Crypto Arbitrage Bot for Decentralized Exchanges and Cross-Chain Commerce


In response to statistics, decentralized exchanges (DEXs) over the past 3-4 years have grow to be a serious a part of Decentralized Finance (DeFi).

PancakeSwap’s 24-hour buying and selling quantity, for instance, reaches $7.39 billion, Uniswap’s — $3.98 billion, and Fluid’s — $1.77 billion.

Nonetheless, regardless of all of the seeming profitability, the buying and selling course of on DEXs is characterised by fragmentation — not solely throughout buying and selling pairs and protocols but in addition throughout whole blockchain networks.

The identical asset can have considerably various costs on completely different chains, relying on liquidity, provide and demand imbalances, and transaction speeds.

In apply, it’s practically unimaginable to hold out asset shopping for and reselling manually as a result of costs change in seconds. Because of this many crypto merchants use cross-chain DEX arbitrage bots.

Cross‑Chain DEX Arbitrage

Prime DEXs Ranked by 24h Buying and selling Quantity, DefiLlama

What Is Cross‑Chain DEX Arbitrage?

Cross-chain DEX arbitrage consists of shopping for a token on one chain and promoting the identical token on a DEX on one other, all to capitalize on worth variations.

These gaps can come up based mostly on variations in liquidity, volumes, or how briskly the worth is being up to date between networks.

For instance, suppose a token is priced at $98 on a DEX on Avalanche however $100 on a DEX on Ethereum. A dealer (or ideally a bot) can purchase the token on Avalanche at a cheaper price and promote it on Ethereum for a $2 revenue per token (after charges).

Arbitrage of this type maintains costs in equilibrium throughout blockchains, however the window of alternative sometimes shuts in a matter of seconds. That’s why utilizing bots to swap property turns into a necessity.

What Is a Cross‑Chain DEX Arbitrage Bot?

A cross-chain DEX arbitrage bot is an automatic program that observes token costs throughout a number of exchanges on completely different blockchains.

When it detects a worth disparity important sufficient to cowl charges and slippage, it executes a sequence of trades between them to reap the distinction.

Safety and Risk Controls

These bots are vital in cross-chain situations, the place handbook execution could be too late and completely miss the chance. The arbitrage bot controls:

  • Actual-time token worth monitoring
  • Payment, slippage, and profitability calculation
  • Cross-chain transfers (by way of bridges)
  • Automated purchase/promote transactions
  • Frontrun and backrun execution

Key Parts of a Cross‑Chain Arbitrage Bot

A cross-chain arbitrage bot all the time wants to incorporate a number of parts so as to detect worth dissimilarities and make trades in a well timed method.

Arbitrage Logic

That is the core of the bot. It retains observe of token costs on completely different DEXs (Ethereum, BSC) and figures out when a worth distinction is large enough to make a revenue after fuel charges, bridge charges, and slippage.

However to actually keep forward, the bot must also take a look at a number of much less apparent facets:

  • Different bots: There could already be bots buying and selling on the identical DEXs. It’s helpful to trace their exercise as a result of they will have an effect on costs earlier than your bot does.
  • Market makers: Some tokens are supported by market makers who’ve their very own buying and selling methods to maintain the market liquid. Understanding how they behave helps keep away from chasing deceptive alternatives.
  • Buying and selling stats: Analyzing commerce quantity and exercise over the past 7–30 days can provide your bot a greater sense of which alternatives are price going after.

DEX Connections

To commerce on decentralized exchanges like Uniswap, PancakeSwap, or SushiSwap, your bot wants to attach on to the blockchain not simply by way of API, however through the use of a node.

Connecting by way of a blockchain node lets the bot learn knowledge straight from sensible contracts, which is quicker and extra dependable than most APIs. In some instances, it might even observe the mempool, giving your bot an opportunity to identify worth modifications earlier than they occur on-chain.

Cross-Chain Bridge Assist

For the reason that bot works on completely different blockchains, it wants a method to transfer tokens between them. That’s the place bridges like Axelar, LayerZero, or Wormhole are available; they switch property from one chain to a different.

Blockchain Entry (RPC Nodes)

To get up-to-date blockchain knowledge and ship transactions, the buying and selling bot makes use of RPC endpoints, which characterize a form of gateway to every blockchain community.

Usually, this implies working your personal full nodes. Public RPC endpoints are sometimes sluggish, unreliable, or restricted in price, which may trigger delays and missed alternatives.

By establishing your personal blockchain infrastructure, you guarantee quick entry to on-chain knowledge, which is essential not just for shortly sending trades but in addition for calculating profitability and reacting to market modifications in actual time.

Automation Engine

The backend of an arbitrage bot often has two components, every doing a special job:

  • Quick Layer – Buying and selling Core: That is the half that does all of the real-time work. It’s multithreaded, retains the whole lot in reminiscence, and reacts shortly to cost modifications. It checks costs, calculates potential earnings, and sends trades—quick. The objective right here is pace, so the bot avoids delays and doesn’t wait on exterior techniques.
  • Sluggish Layer – Knowledge & Administration: This half takes care of the whole lot that doesn’t must occur immediately. It shops commerce historical past, tracks stats, saves logs, and handles any user-facing options if wanted. It’s centered on evaluation and long-term management, not pace.

Pockets Administration

The bot wants crypto wallets on every blockchain to carry the tokens it trades. These wallets additionally pay for fuel charges, so it’s essential to maintain them protected and funded.

Security and Danger Controls

To keep away from insufficient trades, the bot ought to have limits in place, for instance, how a lot slippage is okay, how a lot fuel it’s prepared to pay, or what to do if one thing goes fallacious with a bridge or commerce.

In lots of instances, the bot additionally makes use of its personal sensible contract to deal with trades or transfer tokens between blockchains. Nonetheless, since this contract holds funds and interacts with DEXs, it might grow to be a goal for hackers. That’s why it’s crucial to audit the sensible contract and examine for vulnerabilities earlier than utilizing it.

Challenges and Dangers When Utilizing Arbitrage Bots

Working a cross-chain arbitrage bot can look like incomes cash the simple approach on decentralized exchanges, however it’s full of a number of challenges.

Is arbitrage legal?

To start out with, arbitrage alternatives don’t final lengthy — in some instances, just some seconds. If the bot or the community is uncovered to latency or inefficiency, the worth disparity could disappear earlier than the commerce is accomplished.

Gasoline fees are one other drawback. On some blockchains, transaction charges could leap unexpectedly. If these charges are greater than what you count on your return on funding to be, then chances are you’ll lose cash as a substitute of creating it.

And don’t neglect about competitors. There are many different bots on the market gunning for a similar goal, with better assets and sooner set-ups. The fiercer the atmosphere, the tougher it’s to win.

Finest Practices to Use Arbitrage Bots

Working a cross-chain arbitrage bot could be rewarding, however it additionally takes care and a spotlight to do it proper.

To begin with, all the time check your bot on testnets earlier than utilizing actual cash. This allows you to see the way it performs in actual blockchain circumstances, with out the chance. You’ll be able to repair bugs, enhance your logic, and construct confidence earlier than going stay.

As soon as your bot is stay, it’s essential to focus solely on clearly worthwhile trades. Not each worth distinction is price chasing. Many are too small, and when you subtract fuel charges, bridge prices, and slippage, you would possibly find yourself dropping cash.

Earlier than sending actual trades, you can even run your bot on mainnet in dry-run mode. On this mode, the bot calculates potential earnings and logs what it would have finished, however doesn’t really ship transactions to the blockchain. This can be a helpful step to check your technique in actual market circumstances and see if it’s actually worthwhile.

Your bot additionally wants quick and dependable entry to the blockchains it really works with, and meaning constructing your personal infrastructure with devoted nodes. Public RPC endpoints are sometimes too sluggish or unreliable to compete with different bots. In case your knowledge is delayed even by a second, you could possibly miss worthwhile trades.

And don’t rush into it with massive quantities. Begin small whilst you check your bot with actual trades. As your bot proves itself and your funds grows, it’s essential so as to add extra safety measures: set tighter limits, monitor exercise, and audit your sensible contract and infrastructure.

As soon as your bot begins displaying outcomes and transferring actual quantity, you’ll seemingly entice consideration, not simply from different merchants, however from hackers too. When you’re seen, assume no less than ten persons are already watching what you’re doing. Higher to be prepared than remorse later.

Lastly, preserve bettering. The DeFi world modifications shortly, so replace your bot usually. Watch for brand new instruments, DEXs, and methods that may offer you an edge.

Tip Abstract
Take a look at First Use testnets to repair bugs and fine-tune earlier than risking actual funds.
Commerce Sensible Solely go for clearly worthwhile trades after charges and slippage.
Dependable Entry Use steady RPCs with backups to keep away from missed alternatives.
Begin Small Start with small quantities, scale up as confidence grows.
Keep Up to date Hold bettering your bot as DeFi instruments and DEXs evolve.

Construct vs. Purchase: Ought to You Code Your Personal or Use an Present Platform?

When deciding the way to make a cross-chain arbitrage bot, one of many first questions to contemplate is whether or not you’ll make it your self or use an answer that already exists. There is no such thing as a a technique; it comes down solely to expertise, time, and your objectives.

to Use Arbitrage Bots

Construct Your Personal

Constructing your personal bot offers you full management. You’ll be able to determine the way it works, what chains and DEXs it connects to, the way it balances dangers, and if it must be aggressive or conservative.

When you’re curious about creating a brand new technique or gradual optimization over time, ranging from scratch is the path to take.

However assembling a bot additionally takes time and severe technical know-how. When you do it your self, you’ll want to grasp blockchain growth, sensible contracts, APIs, cross-chain bridges, fuel optimization, and extra. And whilst you’re busy coding, you would possibly miss actual buying and selling alternatives.

That’s the place a crypto buying and selling bot growth firm like SCAND can assist. With over 25 years of software program growth expertise and a deep precedence on blockchain options, we can assist you design, create, and refine a customized arbitrage bot that serves your technique and scales along with your wants.

Purchase or Customise

Utilizing an current platform is a a lot sooner method to get began. A lot of the software program available on the market comes pre-built with options equivalent to dashboards, monitoring trades, and alerts. You don’t must develop all of this from scratch, and also you’ll have the ability to check precise trades sooner.

Nonetheless, these instruments are often much less versatile. You might not have the ability to modify its components to match your actual technique. Some platforms additionally cost charges or take a lower of your earnings.

There’s additionally a center choice: begin with an open-source bot and customise it, for instance, utilizing the Bot Starter Equipment from SCAND. It offers you a working base to construct on, and you continue to get some flexibility with out ranging from zero.

Ceaselessly Requested Questions (FAQs)

Is arbitrage authorized?

Sure, crypto arbitrage is authorized in most jurisdictions. Nonetheless, all the time seek the advice of native legal guidelines and laws.

Do I want numerous capital to begin?

Not essentially, however greater capital can cowl fuel prices and encourage extra worthwhile trades.

What’s the distinction between cross-chain and on-chain arbitrage?

On-chain arbitrage includes trades throughout the identical blockchain. Cross-chain arbitrage spans a number of blockchains and requires bridging property between them.

Can I nonetheless generate income with arbitrage bots in 2025?

Sure. Nevertheless it’s tougher than ever. The straightforward wins from 2020–2021 are principally gone. Immediately’s earnings usually rely on sooner execution, entry to obscure chains, and smarter algorithms. You’re now competing towards extremely optimized bots and institutional-grade techniques.

Nanodevice makes use of sound to sculpt gentle, paving the best way for higher shows and imaging – NanoApps Medical – Official web site

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Nanodevice makes use of sound to sculpt gentle, paving the best way for higher shows and imaging – NanoApps Medical – Official web site


Gentle can behave in very surprising methods if you squeeze it into small areas. In a paper within the journal Science, Mark Brongersma, a professor of supplies science and engineering at Stanford College, and doctoral candidate Skyler Selvin describe the novel approach they’ve used sound to govern gentle that has been confined to gaps only some nanometers throughout—permitting the researchers beautiful management over the colour and depth of sunshine mechanically.

The findings may have broad implications in fields starting from laptop and digital actuality shows to 3D holographic imagery, optical communications, and even new ultrafast, light-based neural networks.

The brand new machine is just not the primary to govern gentle with sound, however it’s smaller and probably extra sensible and highly effective than standard strategies. From an engineering standpoint, acoustic waves are engaging as a result of they’ll vibrate very quick, billions of occasions per second.

Sadly, the atomic displacements produced by acoustic waves are extraordinarily small—about 1,000 occasions smaller than the wavelength of sunshine. Thus, acousto‑optical gadgets have needed to be bigger and thicker to amplify sound’s tiny impact—too large for as we speak’s nanoscale world.

“In optics, large equals gradual,” Brongersma stated. “So, this machine’s small scale makes it very quick.”

Simplicity from the beginning

The brand new machine is deceptively easy. A skinny gold mirror is coated with an ultrathin layer of a rubbery silicone‑based mostly polymer only some nanometers thick. The analysis workforce may fabricate the silicone layer to desired thicknesses—anyplace between 2 and 10 nanometers. For comparability, the wavelength of sunshine is sort of 500 nanometers tip to tail.

The researchers then deposit an array of 100‑nanometer gold nanoparticles throughout the silicone. The nanoparticles float like golden seaside balls on an ocean of polymer atop a mirrored sea flooring. Gentle is gathered by the nanoparticles and mirror and centered onto the silicone between—shrinking the sunshine to the nanoscale.

To the facet, they connect a particular form of ultrasound speaker—an interdigitated transducer, IDT—that sends excessive‑frequency sound waves rippling throughout the movie at almost a billion occasions a second. The excessive‑frequency sound waves (floor acoustic waves, SAWs) surf alongside the floor of the gold mirror beneath the nanoparticles. The elastic polymer acts like a spring, stretching and compressing because the nanoparticles bob up and down because the sound waves course by.

The researchers then shine gentle into the system. The sunshine will get squeezed into the oscillating gaps between the gold nanoparticles and the gold movie. The gaps change in measurement by the mere width of some atoms, however it is sufficient to produce an outsized impact on the sunshine.

The dimensions of the gaps determines the colour of the sunshine resonating from every nanoparticle. The researchers can management the gaps by modulating the acoustic wave and subsequently management the colour and depth of every particle.

“On this slender hole, the sunshine is squeezed so tightly that even the smallest motion considerably impacts it,” Selvin stated. “We’re controlling the sunshine with lengths on the nanometer scale, the place sometimes millimeters have been required to modulate gentle acoustically.”

Starry, starry sky

When white gentle is shined from the facet and the sound wave is turned on, the result’s a collection of flickering, multicolored nanoparticles towards a black background, like stars twinkling within the night time sky. Any gentle that doesn’t strike a nanoparticle is bounced out of the sphere of view by the mirror, and solely the sunshine that’s scattered by the particles is directed outward towards the human eye. Thus, the gold mirror seems black and every gold nanoparticle shines like a star.

The diploma of optical modulation caught the researchers off guard. “I used to be rolling on the ground laughing,” Brongersma stated of his response when Selvin confirmed him the outcomes of his first experiments.

“I assumed it might be a really refined impact, however I used to be amazed at what number of nanometer adjustments in distance can change the sunshine scattering properties so dramatically.”

The distinctive tunability, small kind issue, and effectivity of the brand new machine may rework any variety of business fields. One can think about ultrathin video shows, extremely‑quick optical communications based mostly on acousto‑optics’ excessive‑frequency capabilities, or maybe new holographic digital actuality headsets which are a lot smaller than the cumbersome shows of as we speak, amongst different functions.

“After we can management the sunshine so successfully and dynamically,” Brongersma stated, “we are able to do all the pieces with gentle that we may need—holography, beam steering, 3D shows—something.”

Extra info: Skyler Peitso Selvin et al, Acoustic wave modulation of hole plasmon cavities, Science (2025). DOI: 10.1126/science.adv1728. www.science.org/doi/10.1126/science.adv1728

Journal info: Science

Supplied by Stanford College

China calls for ‘safety proof’ from Nvidia over H20 chip backdoor fears

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China calls for ‘safety proof’ from Nvidia over H20 chip backdoor fears



The proposed laws would require export-controlled superior chips to be geared up with location verification mechanisms inside six months of enactment, and mandate exporters to report back to the Bureau of Business and Safety if merchandise are diverted or tampered with.

The CAC assertion cited “calls for from US lawmakers so as to add monitoring options to superior chips” and famous that “US synthetic intelligence specialists have indicated that distant management applied sciences associated to Nvidia’s chips have matured.”

Nvidia denials fall brief, China says

The Folks’s Day by day referenced Nvidia’s earlier assertion that “Cybersecurity is critically essential to us. Nvidia doesn’t have ‘backdoors’ in our chips that may give anybody a distant approach to entry or management them.” Nevertheless, the state media outlet dismissed this response as inadequate, emphasizing that solely “convincing safety proof” would restore belief.

The chipmaker faces strain balancing US safety necessities with Chinese language market calls for. US Commerce Secretary Howard Lutnick described the H20 as Nvidia’s “fourth greatest” processor when saying export resumption: “We don’t promote them our greatest stuff, not our second greatest stuff, not even our third greatest.”

The H20 chip is a part of Nvidia’s China-specific product line, engineered to fulfill US commerce restrictions by lowering efficiency whereas sustaining ample processing energy for Chinese language clients. It’s primarily based on Nvidia’s Hopper structure however with trimmed specs.

Enterprise IT faces chip procurement challenges

The confrontation highlights tensions over semiconductor provide chains crucial to enterprise AI deployments. The Folks’s Day by day famous that “cybersecurity not solely impacts our day by day lives but additionally acts because the lifeblood of companies, and is immediately linked to nationwide safety.”

ios – How do you get a ConcentricRectangle to respect the system corners, with out having to inform it what these are?

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ios – How do you get a ConcentricRectangle to respect the system corners, with out having to inform it what these are?


This query is about ConcentricRectangle. First, some background:

The SwiftUI Form ContainerRelativeShape has existed since iOS 14. In iOS 26, it appears to respect the form of the system display screen. So the next code exhibits a grey background behind the content material with good concentric corners:

VStack {
    Textual content("Content material")
        .body(maxWidth: .infinity, maxHeight: .infinity)
}
.background(.quaternary, in: .containerRelative)
.padding(20)

Screenshot

Btw, the corners are solely rounded when working with iOS 26. Once I tried it on an iPhone 16 simulator working iOS 18.5, the corners had been sq..

In iOS 26, the brand new Form ConcentricRectangle has been launched. Nonetheless, when used as the form for the background within the code above, the corners are sq.:

VStack {
    Textual content("Content material")
        .body(maxWidth: .infinity, maxHeight: .infinity)
}
.background(.quaternary, in: .rect(corners: .concentric)) // 👈 modified
.padding(20)

Screenshot

The documentation states:

To make use of ConcentricRectangle, first make certain the ancestor view hierarchy supplies the container form. Some container shapes are offered by platform kits, however you might present your individual by writing the containerShape(_:) modifier with a form.

OK, so lets attempt .containerRelative because the container form:

VStack {
    Textual content("Content material")
        .body(maxWidth: .infinity, maxHeight: .infinity)
}
.background(.quaternary, in: .rect(corners: .concentric))
.padding(20)
.containerShape(.containerRelative) // 👈 added

Sadly, this does not work both and the corners are nonetheless sq..

If I knew the radius of the system corners then I might specify the container form as a RoundedRectangle. I might additionally provide a minimal radius as a fallback. However absolutely, neither of those workarounds needs to be crucial – in any case, it labored within the first instance the place the background form was .containerRelative.

How do you get a ConcentricRectangle to respect the system corners, with out having to inform it what these are?

swift – Totally different UIBarButtonItem Look in iOS 26 Beta 4 In comparison with iOS 18 Model – The right way to Retain iOS 18 Type?

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ios – How do you get a ConcentricRectangle to respect the system corners, with out having to inform it what these are?


I am encountering a problem the place the identical code for making a UIBarButtonItem leads to completely different visible appearances between iOS 18 (or earlier) and iOS 26 Beta 4. I am testing on simulators and gadgets utilizing Xcode 26 beta 4.

In my app, I am setting a proper bar button merchandise in a view controller’s navigation bar with the next code:

func initView() {
    self.view.backgroundColor = .systemGray6
    self.title = "Title"
    self.preferredContentSize = CGSize(width: 500, top: 600)
    let cancelButton = UIBarButtonItem.init(title: "Shut", fashion: .plain, goal: self, motion: #selector(cancelAndBack))
    self.navigationItem.leftBarButtonItem = cancelButton
    if #out there(iOS 26.0, *) {
        let doneButton = UIBarButtonItem.init(title: "Performed", fashion: .distinguished, goal: self, motion: #selector(cancelAndBack))
        self.navigationItem.rightBarButtonItem = doneButton
    } else {
        let doneButton = UIBarButtonItem.init(title: "Performed", fashion: .carried out, goal: self, motion: #selector(cancelAndBack))
        self.navigationItem.rightBarButtonItem = doneButton
    }
    
}

For Cancel Button:

  • No express fashion is ready right here, so it defaults to .plain.
  • On iOS 18 and beneath, this seems as plain textual content with no background or rounded
    body, which is the specified look.
  • On iOS 26 Beta 4, it exhibits with a white
    background and rounded corners, which I do not need. I would like a transparent background with none rounding or body.

For Performed Button:

  • I observed that UIBarButtonItem.Type.carried out is deprecated in iOS 26 (as
    per documentation). So, I attempted utilizing .distinguished explicitly, however the
    look is completely different ion IOS 26 in in comparison with iOS 18.
  • it’s added system blue colour because the background colour of the button.

Query:
Is there a really helpful solution to obtain constant look throughout iOS 18 and iOS 26, particularly retaining the iOS 18 fashion (plain textual content, no background, no rounding) on iOS 26 gadgets?
Are there any new APIs or configuration choices in iOS 18 that I ought to use to override this default styling?
Or is that this a beta challenge that is perhaps resolved?

Totally Code:

import UIKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        tremendous.viewDidLoad()
        
        // Create the button
        let button = UIButton(kind: .system)
        button.setTitle("Click on me", for: .regular)
        button.translatesAutoresizingMaskIntoConstraints = false
        
        button.titleLabel?.font = UIFont.systemFont(ofSize: 18)
        button.setTitleColor(.white, for: .regular)
        button.backgroundColor = .systemBlue
        button.layer.cornerRadius = 8
        
        
        // Add goal for button faucet
        button.addTarget(self, motion: #selector(buttonTapped), for: .touchUpInside)
        
        // Add button to view
        view.addSubview(button)
        
        // Arrange constraints to heart the button
        NSLayoutConstraint.activate([
            button.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            button.centerYAnchor.constraint(equalTo: view.centerYAnchor)
        ])
    }
    
    @objc func buttonTapped() {
        let exportViewController = ExportViewController()
        let navController = UINavigationController(rootViewController: exportViewController)
        navController.modalPresentationStyle = .formSheet
        
        self.current(navController, animated: true, completion: nil)
    }
}


import UIKit

class ExportViewController: UIViewController {
    
    
    func initView() {
        self.view.backgroundColor = .systemGray6
        self.title = "Title"
        self.preferredContentSize = CGSize(width: 500, top: 600)
        let cancelButton = UIBarButtonItem.init(title: "Shut", fashion: .plain, goal: self, motion: #selector(cancelAndBack))
        self.navigationItem.leftBarButtonItem = cancelButton
        if #out there(iOS 26.0, *) {
            let doneButton = UIBarButtonItem.init(title: "Performed", fashion: .distinguished, goal: self, motion: #selector(cancelAndBack))
            self.navigationItem.rightBarButtonItem = doneButton
        } else {
            let doneButton = UIBarButtonItem.init(title: "Performed", fashion: .carried out, goal: self, motion: #selector(cancelAndBack))
            self.navigationItem.rightBarButtonItem = doneButton
        }
        
    }
    
    override func viewDidLoad() {
        tremendous.viewDidLoad()
        
        // Name initView first to arrange the fundamental view
        initView()
        
        // Create and add the label
        let helloLabel = UILabel()
        if #out there(iOS 26.0, *) {
            helloLabel.textual content = "Hiya iOS 26"
        } else {
            helloLabel.textual content = "Hiya iOS 18"
        }
        helloLabel.font = UIFont.systemFont(ofSize: 48)
        helloLabel.textAlignment = .heart
        helloLabel.translatesAutoresizingMaskIntoConstraints = false
        
        view.addSubview(helloLabel)
        
        // Heart the label within the view
        NSLayoutConstraint.activate([
            helloLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            helloLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor)
        ])
    }
    
    @objc func cancelAndBack(){
        self.dismiss(animated: true, completion: nil)
    }
    
}

Please, refer connected screenshot for button look .

iOS 18 appearance
iOS 26 appearance

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