GoUnlimited.to Discussion & Alternatives

If you would like to suggest alternatives to users (NO REFERRAL LINKS) then by all means do so using this thread OR if you wish to discuss gounlimited.to use this thread.

You cannot post in this thread if you are a competitor or a newly registered user (likely a competitor using a proxy/RDP etc).

You CANNOT promote your own websites.

Here’s some questions which I am sure most of you would like to know…

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usability – Appropriate use of and child-proof alternatives to screwed-down battery covers

On lots of electronic devices with replaceable batteries, the battery cover is secured by a screw.

I understand that it may be necessary to protect against child access to the battery bay, but using a screw necessitates the use of a screwdriver to open the battery cover, which can be inconvenient. It annoys me to no end that I need to open my toolbox, grab my screwdriver, and unscrew the darn thing to replace the batteries.

When is using a screw appropriate for securing a battery cover? Under what circumstances is a simple latch closure inadequate for a battery cover? Are there safety regulations that cover this?


It appears that there are legal requirements that specify that toys intended for young children must have secured battery covers. However, this question covers more than just toys, but pretty much any electronic device that has replaceable batteries. Aside from safety and regulatory requirements, when is it better to use a screw instead of a latch closure to secure the battery cover?

Also, what alternatives are there to a screwed-down battery cover that can prevent young children from accessing batteries while being more convenient than a screw closure?

Any such battery compartment must be “inaccessible” such that “it is not physically exposed by reason of a sealed casing and does not become exposed through reasonably foreseeable use and abuse of the product” (source). This may be very difficult to attain in a toolless manner, but any ideas are welcome.

java – Alternatives to the Maven Release Plugin: How does the “Dead and Buried” method check for snapshot dependencies?

I have been looking for alternatives to the Maven Release Plugin and as far as I can tell, this is a method liked by many people and often regarded as best practice: https://axelfontaine.com/blog/dead-burried.html

I don’t see how this replaces the Release Plugin? For example, release:prepare of the Release Plugin will check that the project is not dependent on any Snapshot versions. This is an important feature, it would be really bad to have a release versions that depends on snapshot versions. Is this simply omitted in the Dead and Buried method?

If you know of better alternatives to the Maven Release Plugin please let me know. Thanks in advance.

probability or statistics – Intepreting the results of DistributionFitTest, and other alternatives in Mathematica 12.1

I have been playing with DistributionFitTest as a means of testing how normal some data sets I have. I’ve been working with some simulated data sets so I can try and understand what’s going on. From the documentation it seems DistributionFitTest returns a $p$-value by default, which according to the documentation

A small $p$-value suggests that it is unlikely that the data came from dist.

Firstly, how is “small” defined?

From my limited understanding of $p$-values, it seems that if the resultant $p$-value is $< 0.05$ then one can say it is unlikely that the data belongs to the proposed distribution. Again, from my understanding this $0.05$ threshold should be considered as a hard line, so $p = 0.04999$ should be rejected while $p = 0.05000$ is accepted.

As for my “simulations” I did a simple test to find out how $p$-values are distributed for multiple data sets which are generated from the dame distribution. I use the "KolmogorovSmirnov" option as the K-S test seems to be the standard approach used.

ManypValue = 
Table[
        NormalData = RandomVariate[NormalDistribution[0, 1], 1000];
        pValue = DistributionFitTest[NormalData, NormalDistribution[[Mu], [Sigma]], "KolmogorovSmirnov"],
        {i, 1, 512}
    ];
    
Histogram[ManypValue, "FreedmanDiaconis", "PDF",Frame->True, FrameLabel->{"p-Value","PDF"}]

The result is a uniform or box distribution which goes between $0$ and $1$, so I understand this to mean that there is a $5%$ chance of a dataset which is normal being identified as non-normal — on the basis of this $p>0.05$ threshold:
enter image description here

Finally, are there any other methods in Mathematica as a means of testing whether data belongs to a distribution?

ssh – Recommendations on minimal alternatives to openssh

Although openssh is awesome, I’m interested in exploring some more lightweight FLOSS alternatives to use for connecting to servers I’m administrating (and using alone). Since I only need a minimal set of features (only public-private-key authentication, only a single (secure) algorithm like ed25519) and I’m aware that feature reduction is often equivalent to a reduction in attack surface, I was thinking about using something like tinysshd or dropbear.

But from reading about it I got the impression that due to the lack of privilege separation as implemented in openssh this might be counterproductive from a security point of view.

Therefore I’d like to ask the community if currently (2020-10):

  • it is recommended to use one of the alternatives to openssh,
  • if yes: which one is preferred and why, and
  • if no: why this is (not) the case.

Also I’d like to know if it is advisable from a security point of view to use tinysshd in conjunction with tcpserver since it allows it to be run as non-root-user but needs to leave the host keys inside /etc/tinysshd/sshkeys.d readable to the user.

In addition I’d appreciate any recommendation on other alternatives except openssh, tinysshd and dropbear.

Alternatives to taxis in Japan

There are a large number of sites I wish to visit in the wider Tokyo area that are not accessible by train or bus. Often the nearest station or bus stop is a few kilometres away, walkable but due to a disability I’m looking for alternatives to make travelling easier.

What options exist, other than taxis which are rather expensive? You can’t take bikes on most trains and my understanding is that electric scooters require a driving licence and to be used on the road. I could get an international driving licence if a very light weight folding one could be taken on the train.

Is car rental a good option? For example is Android Auto available so I can use it for navigation, given that I would struggle to enter addresses in Japanese?