In this work, we present an open-source DLPNO-CCSD(T) algorithm, with particular attention paid to obtaining accurate results for non-covalent interactions. The deviations for relative energies compared to canonical CCSD(T) are typically on the order of 0.1 kcal mol -1 or less with our given set of parameters (at the TightPNO convergence). Our emphasis on accuracy has resulted in some modifications of previously published local PNO based CCSD(T) algorithms, such that the resulting code appears to provide improved accuracy when using "TightPNO" cutoff parameters. We have also shown our code to be competitive with regards to accuracy compared to many-body expansion methods based on canonical CCSD(T). Many of the useful properties associated with the original DLPNO-CCSD(T) algorithm have not been lost, including its low scaling and increased efficacy with larger basis sets, even when taking advantage of our code's high accuracy. This code is now publicly available to view and execute in a developmental branch of Psi4, and will be widely available in a future release of the Psi4 software. In the future, we plan to test and optimize our code to study even larger systems than those presented in this paper, as well as explore additional ways to reduce projection errors without compromising the efficiency of our algorithm. Combined with advances in computing technology such as with massively parallel computing and GPUs, an open-source version of DLPNO-CCSD(T) will also allow for the development of local coupled-cluster codes which take advantage of these new hardware developments, allowing for coupled-cluster calculations to be performed with much larger systems than previously imaginable.