rcv VS Tabulator

The software for Clear Ballot and various legacy systems by the aforementioned vendors (such as Sequoia, who I believe Dominion purchased) do not support ranked ballot tabulation directly, but export ballot-level results that can still be tabulated externally. To plug this gap, RCVRC has invested a lot of resources into supplying an open source version of this missing piece and getting it certified in multiple states. (So that one Clear Ballot machine in Sheboygan Country doesn't block the entire state of Wisconsin) Smartmatic and VotingWorks are probably in a similar boat, but it has not yet come up that such an implementation has needed certification. (VotingWorks is itself open-source, so already certified functionality could just be integrated directly anyhow.)

Coded mainly in Perl and Gnuplot, recently extended by Python Pandas and JavaScript Tabulator and ECharts

We use Tabulator for a similar use case at my job, it has a virtual DOM to support thousands of rows pretty well. It's not React based, it's a vanilla JS library. There is a React wrapper here but I don't have experience with that.

If you familiar with programming, then defiantly it way to go, tabulator as a CRUD for frontend and simplest sqlite backend. The reason such type of apps not broadly exists is that because any business has it's own workflow, so all-in-one common apps became overloaded with useless features but doesn't have feature a client needs

as well to have a choice for theme with detailed info page (size/modefied-time) with sorting capability (by utilizing something like tabulator)

I am a mostly backend dev using python and only know enough JS to be dangerous. I am doing some simple front-end work for my job, and I am using tabulator.js which creates a column with an x in it. When that x is clicked, this function runs.

Yeah. NaiveUI is good. Also check tabulator. http://tabulator.info/